Tunnels & Earthworks (Cuts & Embankments) of the Comarnic

Tender Designs of Major Infrastructure Highway Projects Tunnels & Earthworks (Cuts & Embankments) of the Comarnic – Brasov Motorway Romania

Project Tunnels, cuts and embankments of the Comarnic – Brasov Motorway, Romania.

Construction Cost Total Cost: approx. €. 1.5bn.

Project Schdlhedule Tender Design: 2013 Construction: 2014 -

Project Description • Sinaia, Busteni & Predeal Twin Bore Highway Tunnels Sinaia length: 5.890m Busteni length: 6.200m Predeal length: 7.500m Excavation cross section: 84m2 -132m2 Effective cross section: 66m2 -81m2

Excavation Method NATM – Mechanical excavation, drilling and blasting

Final Lining Reinforced concrete

• Highway Cuts and Embankments (Section from Typical tunnels cross section Ch. 110+600-168+600) Embankments: Ltotal = 26.0km Cuts: Ltotal = 11.0km

Geology • Alluvial deposits, limestones, flysch, marbles, schist and conglomerates • Groundwater • Max. overburden at the tunnels: 195m – 340m

Our Services Tender design and preparation of the technical offer on behalf of ViStrAda Nord Typical embankment cross section Client ViStrada Nord Consortium (VINCI S.A. - VINCI Construction Grand Projects S.A.S. - VINCI Construction Terrassement S.A.S. – STRABAG A.G. - STRABAG S.E. – AKTOR Concessions S.A. - AKTOR S.A.)

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Railway Project Consulting services, technical review and checking of designs and Panagopoula Railway Tunnel associated detailed designs Athens - Patras High Speed Railway Line, Section Rododafni – Psathopirgos Greece

Project • Consulting services, technical review and checking of the designs of the project: “Construction of the New Double High Speed Railway Line at the section Rododafni – Psathopirgos from CH. 91+500 until CH. 113+000 and Panagopoula Railway Tunnel design”. • Panagopoula railway tunnel detailed designs. Construction Cost Total cost: approx. € 293 m. Project Schedule Design – Construction: 2013 – 2016 West adit’s E&S class ΣΠ2 Project Description Consulting services, technical review and checking for the following structures: • Four (4) Roadway Bridges • Thirty (30) Railway Bridges • Fifty (50) Retaining Walls • Panagopoula twin bore railway tunnel including entrance and exit structures with total length ~8.500m Panagopoula railway tunnel detailed designs: • Panagopoula railway tunnel West adit Length: 68m, Cross section: 44m2, Overburden: 35m Bridge’s pilewall detail • Panagopoula railway tunnel West adit portal (Length : 18m , Piles Ø 1.20) • West cavern and cross gallery of Panagopoula railway tunnel Length: 52m, Cross section: 77m2, Overburden: 62m • Intermediate cavern and cross gallery of Panagopoula railway tunnel Length: 55m, Cross section: 77m2, Overburden: 202m

Geology Quaternary deposits of clayey scree from the marls weathering encountered in the area and pliocene and pleistocene sediments characterized by marls (stiff clays) and conglomerates alternations, limestones, chertstones Adit’s plan view Our Services • Consulting services, review and checking of the designs of the project in order to identify adequacy and incompleteness of the available desgns relevant to the projects’ feasibility and constructability • Detailed design of Panagopoula railway tunnel West adit and portal • Detailed designs of the intermediate and west caverns and cross galleries of Panagopoula railway tunnel Clients • AKTOR S.A. – J&P AVAX S.A. – INTRAKAT S.A. Joint Venture Adit’s portal pilewall • AKTOR S.A. – J&P AVAX S.A. Construction Joint Venture

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr RockFill Highway Embankments Demir Kapija-Smokvica Motorway Section of European Corridor 10 & Part of the National Road M-1 (E-75) Scopje

Project Design of rockfill reinforced embankments for the Demir Kapija – Smokvica motorway. Construction phase design for the incorporation, utilization of suitable rock type fill materials obtained from the cuts of the projtject in themotorway embkbankment s.

Construction Cost Total cost of the highway: approx. € 270m

Project Schedule Modulation of embankments’ anchoring benches Design: 2010, 2013 Construction: 2012 - 2015

Project Description • Total highway length: 28km • Reinforced embankments’ total length: 5km • Reinforced embankments’ max. height: 40m • Reinforced embankments’ slope: 2:3 and 1:1 (v:h)

Geology Gabbro – diabase complex, rock formations of Diabases and Spilites Placement and leveling of fill material locally covered with soil-like superficial mantle consisting of diluvium deposits and talus – scree materials.

Our Services • Geotechnical Design of rockfill reinforced embankments • Slope stability analysis checks, dimensioning of the rock type embankments and determination of the necessary and appropriate per case reinforcement requirements (tensile strength of the geogrid elements, length, vertical spacing) • Elaboration of technical reports, detailed construction drawings, calculation notes, technical and constructability issues • Consultancy Services

Client AKTOR S.A.

Typical cross section and construction details for the rock fill embankments

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Rockfall Protection & Slope Support Works Demir Kapija-Smokvica Motorway / Celevecka Gorge Section of European Corridor 10 & Part of the National Road (E- 75), SjScopje

Project Rockfall protection works design and slope support-stabilization measures design at the Celevecka river gorge. The alignment of Tunnel T1 crosses the rivers’ stream with very steep, adverse rocky morphology bringing about high risk of potential rockfalls.

Construction Cost Total cost of the highway: approx. € 270m

Project Schedule Design: 2010, 2013 Construction: 2013-2014

Project Description • Gorge crossing length: ~120m • Four (4) gorge portals of tunnel T1 examined: North left and right, South left and right • Rocky slopes’ height above the portal areas: max. 250m • Mountainous region under extremely unfavorable geomorphological conditions, very steep rocky terrain (almost subvertical slopes), potential rockfall source areas along the entire cliff rocky face • Very high kinetic energies and bounce heights expected, highly hazardous area

Geology Jurassic Limestone, slightly weathered and karstified with more intense weathering and fracturing limited in the vicinity of faults and fault zones. Structural fracturing of the rockmass from major discontinuity sets.

Our Services • Geotechnical Design for rockfall protection and slope support works – Rockfall protection and slope support measures at the Works Method Statement south right gorge portal of tunnel T1 • Iden tifica tion and evaltiluation of pottiltential filfailure mechihanisms • Stability analysis checks (rockfalls, planar and wedge type modes of failure) • Determination of the necessary and appropriate per portal case rockfall protection/mitigation systems (type of rockfall barriers, energy absorption capacity, post height) and slope support-stabilization measures (type of steel wire mesh, rockbolts, bearing capacity, length, pattern) • Elaboration of technical repp,orts, detailed construction drawings and calculation notes • Consultancy Services

Client AKTOR S.A. Rockfall protection barriers at the north right and left gorge portals of tunnel T1

Project Earthworks final geotechnical designs (embankments and cuts) and foundation designs for overpasses, underpasses, culverts, bridges, cut & covers of a 38 km motorway stretch at Poligiros – Uranoupoli motorway, Greece.

DiDesign CtCost Design cost: approx. € 321 k.

Project Schedule Design: 2010 – on going

Project Description • Total highway length: 38km Cut & cover’s longitudinal section • Embankments’ total length: 1km • Embankments’ height: 14 – 21m • Cuts’ total length: 0,5km • Cuts’ height: 9 - 13m

Geology Gneisses, peridotites and dunites, recrystallised limestones or marbles, phyllites, red clays, alluvial deposits and alluvial fans

Our Services • Geotechnical surveys programming • Geological – geotechnical interpretation and evaluation • Earthworks final geotechnical designs (cuts and embankments)

• Foundation designs for overpasses, underpasses, bridges, Bridge’s plan view culverts, cut & covers • Elaboration of technical reports, construction drawings, calculation notes • The ppjroject was undertaken in the frames of the Design Consortium “Prisma Consulting Engineers S.A. – Omikron Kappa Consulting S.A. – Markos Liras – Ioannis Pantekis – Konstantina Michalopoulou”

Client MINISTRY OF INFRASTRUCTURE, TRANSPORTATION AND NETWORKS (GR)

Underpass’s longitudinal section

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Highway Cut Slopes DUBAI – FUJAIRAH FREEWAY Slope Stability Audit - Slope Stabilization and Rockfall Protection Design, United Arab Emirates Project Slope stabilization and rockfall protection design at the Dubai-Fujairah Freeway. Geotechnical evaluation and determination of the required preventative and protective measures, as well as repair and remedial works Construction Cost Total cost: approx. 300 m AED Project Schedule Design: 2009 -2010 Construction: 2009 - 2011 Project Description Assessment of the cut slope stability and determination of the necessary slope stabilization works and rockfall protection measures Design Length: 22.0 km Geomorppgyhology - Geology Mountainous terrain with steep rocky slopes of significant height (exceeding 50m up to 110m) Ophiolite complex (gabbros, basalts, dunites, peridotites, serpentinites, breccia) Existing rocky cut slopes Our Services • Technical advisor - consultant services and special expertise in geotechnical engineering and rock-soil mechanics • Geotechnical design • Identification of the encountered geotechnical problems and evaluation of the potential slope failure mechanisms – elaboration of detailed stability audit • Execution of stability analysis (planar, wedge, rockfalls, composite failures) • Determination of the necessary support - stabilization measures • Detailed dimensioning of the mitigation systems, technical specifications and construction method statement • Elaboration of technical report, construction drawings and BOQ’s • On site technical expertise and consulting services • Inspection, monitoring and maintenance plan Construction Details • Cut slope re-profile • Scaling works • Reinforced concrete, shotcrete, anchored buttress • Pre-stressed anchors • Rockfall barriers (low, medium, high energy absorption capacity) View of the freeway after the completion of the construction works • Slope surface stabilization systems (anchored wire mesh, spider net) Client UAE - MINISTRY OF PUBLIC WORKS, AL AHMADIAH AKTOR

Project Rockfall protection design at Athineo – Lefktro section (Rapsomati area) of the Tripoli – Kalamata road axis (Peloponnese)

Construction Cost Total cost: approx. 0.5 m. €

Project Schedule Design: 2008 Construction: 2009

Project Description Assessment of the cut slope stability and determination of the Typical cross section with installation of rockfall barrier necessary support and rockfall protection measures Length: 450m

Geology Rocky slopes of medium inclination with height up to 50m Thin to medium bedded Limestones

Our SiServices • Detailed geotechnical design • Identification and evaluation of the potential slope failure mechanisms – elaboration of detailed stability audit • Execution of stability analysis (rockfalls) • Determination of the necessary support - stabilization measures • Detailed dimensioning of the mitigation systems, technical Design area general view specifications and construction method statement • Elaboration of technical repp,ort, construction drawings and bill of quantities (BOQ) • Consulting services during on site application • Designs jointly elaborated by OMIKRON KAPPA CONSULTING SA and EDR GmbH, Munich

Construction Details Installation of approx. 400m of rockfall protection barriers

Client MINISTRY OF E.PP.PW. - GENERAL SECRETARIAT OF PUBLIC WORKS, GENERAL DEPARTMENT OF TRANSPORTATION WORKS

Rockfall protection area

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Highway Cut Slopes TEMPI VALLEY - Slope Stabilization and Rockfall Protection Detailed Design, PATHE SECTION MALIAKOS – KLEIDI MOTORWAY, CONCESSION PROJECT, Central Greece Project Slope stabilization and rockfall protection detailed design at Tempi Valley (National Roadway of Athens – Thessaloniki) Construction Cost Total Cost: approx. 3m. € Project Schedule Design: 2008 - 2009 Construction: 2010 - 2011 Project Description Assessment of the cut slope stability and determination of the necessary slope stabilization works and rockfall protection measures Length: 5.0km Geomorphology - Geology Rockfall protection barriers Installation Mountainous terrain, very steep rocky slopes of significant height up to 150m Thick to medium bedded crystalline limestones, Phyllites, soil like formations (limestone boulders, scree – debris materials) Our Services • Detailed geotechnical design • Identification and evaluation of the potential slope failure mechanisms – elaboration of detailed stability audit • Execution of stability analysis (rockfalls, planar failure, rock wedge formation, toppling, circular slip failure) • Determination of the necessary support - stabilization measures • Detailed dimensioning of the mitigation systems, technical specifications and construction method statement • Elaboration of technical report, construction drawings and BoQ’s • Consulting services during on site application Construction Details • Scaling works performed manually or/and with the use of mechanical means • Installation of approx. 1,900m of rockfall protection barriers • Installation of approx. 5,500m2 slope stabilization systems (fully anchored Tecco type mesh, Spider type net) • Application of approx. 1,350m of permanent, fully grouted rock bolts • Rehabilitation of the existing fences and the drainage ditches Client MALIAKOS KLEIDI CONSTRUCTION J/V (HOCHTIEF – AKTOR – J& P AVAX– VINCI CGP – AEGEK – ATHENA) Slope stabilization systemapplication

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Highway Cut Slopes PANTELEIMONAS AREA (PLATAMONAS) PATHE SECTION MALIAKOS – KLEIDI MOTORWAY, Concession Project, Slope Stabilization and Rockfall Protection Detailed Design Central Greece Project Slope stabilization and rockfall protection detailed design at Panteleimonas area (Platamomas) of the National Roadway Athens – Thessaloniki

Construction Cost Total Cost: approx. 0.5 m. €

Project Schedule Design: 2008 Construction: 2010

Project Description Assessment of the cut slope stability and determination of the necessary stabilization works and rockfall protection measures Typical cross section with installation of rockfall barrier and Length: 2.5km mesh

Geomorphology - Geology Steep rocky slopes of average height 10 - 20m Crystalline Limestones, soil formations (limestone boulders, scree materials)

Our Services • Detailed geotechnical design • Identification and evaluation of the potential slope failure mechanisms – elaboration of detailed stability audit • Execution of stability analysis (rockfalls, wedge failure) • Determination of the necessary support and stabilization measures • Detailed dimensioning of the mitigation systems, technical specifications and construction method statement • Elaboration of technical report, construction drawings and bill of quantities (BOQ) • Consulting services during on site application

Construction Details • Scaling works performed manually or/and with the use of mechanical means • Installation of approx. 100m of rockfall protection barriers • Installation of approx. 2,500m2 slope stabilization systems (fully anchored Tecco type mesh, drape, Spider type net)

Client MALIAKOS KLEIDI CONSTRUCTION JV Slope stabilization systems application (HOCHTIEF - AKTOR – J&P AVAX – VINCI CGP – AEGEK – ATHENA)

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Slopes, Cuts and Embankments Slope Stability Audit of existing highway cuts and embankments Elefsina – Korinthos – Patras – Pyrgos – Tsakona Motorway, Concession project Southern Greece

Project Detailed design of slope repair and remedial works for the existing embankments and cuts of Elefsina – Korinthos – Patras – Pyrgos – Tsakona Motorway

+119.45 Permanent f ully grouted spot rock bolts with antioxidant protection coating Φ25, S500 length 4.00m, bearing capacity 2 00kN Μόνιμες σποραδικές ηλώσεις βράχου Φ 25, Construction Costs S500 πλήρους ενεμάτωσης με αντιοξειδωτική προστασία, μήκους 4.00m, Total Costs: approx. € ~5 m € φέρουσας ι κ ανότητας 200kN Indicative positions of anchors (where required according to the in situ conditions) Ενδεικτικές θέσεις αγ κυρίων (όπου απαιτείται από τις επί τόπου συνθήκες ) Project Schedule 20.78

Terrain Design: 2008 – Φυσικ ό αν άγ λυφο

35.30

Construction: 2009 – 2011 +98.67 2.00 κλάδος

κλάδος

Ind ic ativ e po siti ons of anchors (where required according to Αριστερός Δεξιός Left branch Right branch Right the in situ conditions) Project Description Ενδεικτικές θέσεις αγ κυρίων (όπου απαιτείται από τις επί τόπου συνθήκες ) 11.94

Existing Terrain Υφιστάμενο Rehabilitation of existing cuts and embankments Existing Rock trap wall φυσικό αν άγλυφο Υφιστάμενος τοίχος βραχοπαγίδας 0.50 +86.74 +88.04 +87.87 GlGeology Limestones, marly limestones, conglomerates and artificial embankment bodies Indicative cross section with the appropriate repair and remedial measures Our Services • Detailed geotechnical design • Identification and registration of all problems and hazards • Geological mapping and assessment of the geotechnical parameters • Stability analysis to determine the potential failures and to work on the protection measures • Determination of all necessary protection and rehabilitation measures (installation of rock fall barriers, slope support) • Construction Drawings • Bill of Quantities - Budget Construction Details • Scaling with the use of light mechanical means • Installation of rockfall barriers • Installation of slope protection measures • Application of permanent rock bolts • Installation of 3-D protection geogrid

• Application of hydroseeding Existing cut view • Rehabilitation of damaged drainage culvert • Construction of drainage ditch at the top of existing retaining wall • Construction of support walls Client APION KLEOS Construction JV (VINCI CONSTRUCTION GRANDS PROJETS S.A.S. - HOCHTIEF Construction AG - J&P-AVAX S.A. - ATHENA S.A. – AKTOR S.A. – GEK/TERNA S.A.)

Project Highway protection from rockfalls

Construction Cost Total cost: approx. € 2 m.

Project Schedule Design: 2003 Construction: 2003

Project Description Total length of barriers: approx. 2000m

Geology Limestones and dolomitic limestones Very steep morphology

Construction Method Special barriers installed to prevent rockfalls and to absorb kinetic energy

Our Services Geotechnical analysis and design of rockfall barriers

Client AKTOR S.A.

…………………

Project Rockfall protection wall in a highway

Construction Cost Total cost: approx. € 0,5m.

Project Schedule Design: 2003 Construction: 2003 - 2004

Project Description Rockfall protection wall Length: 1.455m Height: 1.80m

Geology Limestones, scree in a seismically active area

Our Services Detailed geotechnical & structural design

Construction Details • Rockfall concrete wall with surface foundation • 3 typical cross sections Typical cross sections Client AKTOR S.A.

Project Roadway cuts and embankments

Construction cost Total cost: approx. € 4 m.

Project Schedule Design: 2010 Construction: 2011 –

Project Description Technical inspection of geotechnical hazards for incomplete earthworks, as well as, for earthworks to be Cuts – embankments general view constructed

Geology Limestones, marls formations, debris materials

Our Services • Review and technical audit of existing geotechnical designs • Geotechnical evaluation of incomplete earthworks • Proposal of documented technical design solutions for all the earthworks of the roadway stretch

Client J/V AKTOR S.A. – ELTER S.A. Cut’s general view

Indicative typical cross section with protection measures

Project Rehabilitation of existing open cut slopes of the highway

Construction Cost Total cost: approx. € 0,9 m.

Project Schedule Design: 2005 Construction: 2005 - 2006

Project Description • Rehabilitation of failures in the slopes of open cuts in a highway section of approx. 3km length • One-sided and two-sided open cuts constructed from a previous contractor with medium uniformly gradient 2:3 and fluctuant height from 1m up to 10m, which were appearing serious hydraulic mining problems, surface erosions and Open cut slopes view prior to rehabilitation failures of small depth

Geology Marls of clay and consistence and sand marls Alluvial

Our Services • Detailed geotechnical design • Identification and registration of the slopes problems • Execution of stability back-up analyses for the assessment of the geotechnical engineering characteristics of soils • Assessment of the necessary earth works interventions for the rehabilitation of failures • Assessment of flood protection and anti-corrosion measures • Construction drawings • Bill of Quantities, Budget

Construction Details • Installation of loose material of the existing failures with granular crust material • Installation of 3-D Geogrids ENKAMAT type for the anticorrosion slopes protection Open cut slopes view after rehabilitation • Turfgrass planting over the slopes surface • Planting of small trees • Installation of drainage wholes at the foot of the slope • Construction of drainage trenches over the slopes crown

Client J/V KASTOR S.A. – ELTER S.A.

Project Tender design and consultancy services for the Milot – Morine highway with respect to the conditions of the cuts and embankments and the existing Thirra tunnel, as well as, the new construction elements of the highway referring to the earthworks for the dualization of the first section of the highway from Milot to Rreshen and the new twin bore Kukes Tunnel Construction Cost Total cost: approx. € 258m Project Schedule Design: 2012 - 2013 Construction – Operation - Maintenance: 2013 - 2043 Highway cut slopes view Project Description • Total highway length: 114km • Existing cuts max. height: ~170m • Existing embankments max. height: ~60m • Existing Thirra tunnel: 2* 5.50km= 11km, effective cross section:61.15m2 • New Kukes Tunnel: 2*250m=500m, effective cross section: 50m2 Geology Rock formations, mostly ophiolites and limestones, with differential degree of weathering, fracturing and tectonic deformation. Soft rock and soil-like formations are also encountered, especially in the first section from Milot to Reps and the last section from Kukes to Morine Existing Thirra tunnel Our Services • Independent diagnosis on the conditions of the entire existing alignment of the highway with respect to the earthworks and preliminary definition of the required works to decrease the geotechnical risk associated with landslides and rockfalls and the current status of the existing earthworks / environmental concerns – Safety assessment of the existing Thirra tunnel • Method statement with qualitative future maintenance requirements for the existing earthworks (cuts - embankments) and the existing Thirra tunnel • Tender designs for the construction elements • BoQ estimates for the interventions required to decrease the geotechnical risk of the existing earthworks, the new earthworks of the hihigh hway section to be dliddualized and thenewKkKukes tltunnel Highway embankment slopes view Client • VINCI CONCESSIONS SAS - AKTOR CONCESSIONS S.A. • AKTOR S.A.

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Feasibility Studies and General Design SEETO Road Route 4 Investment Plan Feasibility Studies for earthworks (cuts, embankments, ground improvements, rock fall & avalanches), tunnels and other structures Montenegro

Project Feasibility studies and general design for Road Route 4 connecting the port of Bar with Corridor 10 in Serbia. PtPart of MtMontenegro ’s hihigh hway netktwork lies on RtRoute 4 stthtretch of the core road network defined by the South East Europe Transport Observatory (SEETO). SEETO road route 4 runs for 597 km between Vatin (Romanian border) – Belgrade (Serbia) – Podgorica (Montenegro) - Bar (Montenegro). The Montenegrin portion, runs for about 180 km, generally North – South, from the Serbian border to the coast at Djurmani where it intersects SEETO road route 1, or Adriatic highway.

Design: 2012- 2013

Project Description Feasibility studies and general designs for the alternative alignments of the project, for earthworks (cuts, embankments, ground improvements, rock fall & avalanches), the tunnels (approx.29km of road tunnels per branch with cross section approx. 90-120m2)and Route 4: Montenegrin portion other structures.

Geology At the beginning of the route mainly limestone and dolomite formations with some conglomerates and peridotites. After Uvac and up to the Serbian border, the geology changes and flysch, clayey marls, sandstone formations and marly limestones are met.

Our Services • Inception report • Geotechnical surveys • Preliminary geotechnical designs • General geotechnical design and Bidding documents for the construction works • Operations & maintenance plan • Environmental and social impact assessments according to the Montenegrin law and the IFIs requirements

Client • MINISTRY OF TRANSPORT & MARITIME AFFAIRS-MONTENEGRO EBRD FINANCED PROJECT • URS SCOTT WILSON – UK Mountainous terrain typical view

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Cuts, Embankments, MSEW, Culverts, Retaining Structures, Drainage – Hydraulic Works, Ground Improvement Works Construction of Segment No 1 in Tirana-Elbasan Road (Km 0 till Krabbe Tunnel Entrance Km 13) / FIDIC Conditions of CtContract tAlbi, Albania Project Highway earthworks, retaining structures, culverts, hydraulic works Construction Cost Total cost: approx. 84m $ Project Schedule Design - Construction: 2012- 2013 Project Description Final detailed designs of permanent open cuts, embankments, mechanically stabilized earth walls, retaining structures, culverts, gabion walls, piles, dewatering-drainage measures, ground improvement, treatment & rehabilitation works Embankments: Ltotal = 10km, Hmax =50.0m Cuts: Ltotal = 7.5km, Hmax =60.0m MSEW: Ltotal = 2.5km, Hmax =30.0m Pile walls: Ltotal = 0.7km, Hmax =22.0m Gabion walls: Ltotal = 1.5km, Hmax = 7.0m Culverts: Ltotal =1.0km, Smax = 2x(3.0mx4.0m) Geology Mollasic formations {sandstone, siltstone, conglomerates), Quaternary deposits (silt, clay, sand, gravels, limestone and sandstone boulders)} Our Services • Detailed geotechnical, structural & foundation designs • Geotechnical interpretation reports. Evaluation of the in situ conditions, establishment of the foundation profile, the geotechnical engineering properties, the didesign parameters and ldloads • Execution of stability analysis checks under the provisions of International Standards and Guidelines (BS standards, Eurocodes, AASHTO standards), e.g. rotational check, sliding, bearing capacity, settlement, overturning, planar failure, wedge failure etc. • Detailed dimensioning of the earthworks and structures and determination of the necessary reinforcements, retaining, supports and stabilization measures (strength, bearing capacity, spacing, length, technical specs of material, quality & durability needs) • Elaboration of technical reports, detailed construction drawings, calculation notes, instrumentation-geotechnical monitoring reports • Quality, longevity & serviceability assurance of the designed works • Constructability issues, technical specifications, requirements, construction standards & guidelines • Designer on site services & Technical Consultancy Services Construction Details • Geogrid reinforcement elements, MSEW facing with Terramesh system or gabions, drainage foundation improvement layers, permanent rockbolts-soil nails, pre-stressed anchors, concrete pile walls, gabion walls, reno mattresses, separation geotextiles, drainage holes, drainage ditches, slope erosion protection geomats, steel wire mesh, thickened hydroseeding, monitoring instruments Construction works Client JV AKTOR – COPRI (Albania)

Project Highway earthworks, retaining structures, culverts, hydraulic works Construction Cost Total cost: approx. 86m $ Project Schedule Design - Construction: 2012- 2013 Project Description Final detailed designs of permanent open cuts, mechanically stabilized earth walls, embankments, retaining structures, culverts, gabion walls, piles, dewatering-drainage measures, ground improvement, treatment & rehabilitation works Embankments: Ltotal = 10.0km, Hmax = 40.0m Cuts: Ltotal = 5.0km, Hmax = 60.0m MSEW: Ltotal = 1.0km, Hmax =20.0m Gabion walls: Ltotal = 0.35km, Hmax = 9.0m ClCulvert s: Ltot a l =0.5km, Smax = 2.0mx2.5m Geology Mollasic formations {sandstone, siltstone, conglomerates), Quaternary deposits (silt, clay, sand, gravels, limestone and sandstone boulders)} Our Services • Detailed geotechnical, structural & foundation designs • Geotechnical interpretation reports. Evaluation of the in situ conditions and establishment of the foundation profile, the geotechnical engineering properties, the design parameters and loads • Execution of stability analysis checks under the provisions of International Standards and Guidelines (BS standards, Eurocodes, AASHTO standards), e.g. rotational check, sliding, bearing capacity, settlement, overturning, planar failure, wedge failure etc. • Detailed dimensioning of the earthworks and structures and determination of the necessary reinforcements, retaining, supports and stabilization measures (strength, bearing capacity, spacing, length, technical specs of material, quality & durability needs) • Elaboration of technical reports, detailed construction drawings, calltilculation notes, itinstrument ttiation-geothiltechnical monitori ng reports • Quality, longevity & serviceability assurance of the designed works • Constructability issues, technical specifications, requirements, construction standards & guidelines • Designer on site services & Technical Consultancy Services Construction Details • Geogrid reinforcement elements, MSEW facing with Terramesh system or gabions, drainage foundation improvement layers, permanent rockbolts-soil nails, pre-stressed anchors, concrete pile walls, gabion walls, reno mattresses, separation geottiltextiles, didrainage hlholes, drainage ditches, slope erosion protection geomats, steel wire mesh, thickened hydroseeding, monitoring instruments Client JV AKTOR – COPRI (Albania) Construction works

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Highway Embankments “Construction of “Struma” Lot 4 Highway, section “Sandanski-Kulata” from km 423+800 to km 438+500, Bulgaria” Bulgaria

Project Final designs, techniques, mechanical mixing guidelines and documentation for the construction of the embankments of the motorway project “Struma” Lot 4, section “Sandanski-Kulata” from km 423+800 to km 438+500, Bulgaria

Construction Cost Total cost: approx. € 35m

Project Schedule

Design: 2012- 2013 Graphical representation of PI, LL estimates of resulting soil mixtures Construction: 2012- 2013

Project Description Earthworks aggregate excavation volume 2,000,000m3 and embankment fills volume 1,700,000m3 (out of which an important portion consists of upgrading the existing alignment through lateral extension to a four lanes motorway) Embankments mainly low in height Max. embankment height: 8m

Geology Trial embankment (H =8m) cross section Alignment crossing plains featured with alluvial deposits (consisting of clays, silts and sands and mixtures) and hills of weathered peridotites

Our Services • Evaluation of available laboratory tests on the parent (“unsuitable”) soil materials for embankment’s fill use • Evaluation of available laboratory tests on the potential “borrow” materials for embankment’s fill use • Substantiated design, for mechanical mixing of the “unsuitable” materials of the project with the “borrow” materials (mixing proportions, laboratory tests, field trials etc.) • Substantiated design for the construction of two (2) test Typical cross section of the motorway at embankment’s position embankments and monitoring instrumentation program • Interpretation of the monitoring results of the two test embankments

Client AKTOR JOINT-STOCK CONSTRUCTION COMPANY

Project Designs of reinforced embankments for the project: “Design of infrastructure Works from CH 25+000 until CH 52+000 of the New Double High Speed Railway Line at the section Lianokladi – Domokos”

Project Schedule Design: 2007 - 2009 Construction: 2008 - 2011

Project Description Total length of excavation works: 4000m Embankments : soil or rock fill material reinforced with geogrids Modulation geometry: one or double sided Reinforced slopes with gradient 2:3 DkDeck width: 13.0m–13.5 m Maximum height: 20m

Geology Recent disposals, scree, serpentinized peridodites, limestone’s flysh formations, weathered mantle, schistosed serpentinites, ophicalcites (encountered as highly weathered or as rocky formations)

Our Services • Detailed design • Construction drawings

Construction Details • Construction of drainage – foundation improvement layer and application of separation geotextile • Construction of embankments with soil fill materials • Foundation of the embankments with reinforced geogrids • Installation of 3-D protection geogrid for slope protection

Client Embankment typical cross sections Construction J/V AKTOR S.A. - TERNA S.A.

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Railway Project – Subbase and Trackbed Reinforcement Earthworks at North Portal of Kallidromo Railway Tunnel of the New Double High Speedld Railway Line Tithorea - Lianokla di Fthiotida Providence, Komnina Region

Project Subbbase and trackbed reinforcement of the new double track high

Γ S_GR_K / Σ

Γ Γ / / Σ speed railway line Tithorea-Lianokladi at section 14+300 – 19+000 Σ

ΑΞΟΝΑΣ

ΞΟΝΑΣ ΔΙΠΛΗΣ ΟΣ

Ρ CiConstruction Cost Σ Total Cost: approx. 1,2 m. € ΑΡΙΣΤΕ ΑΞΟΝΑ ΔΕΞΙΟΣ

Project Schedule Design: 2009 - 2010 Construction: 2011 -

Project Description Determination of the subbase requirements of the new double track high speed railway line Tithorea-Lianokladi at section 14+300 – Subbase reinforcement with geogrids typical 19+000 cross section

Geomorphology – Geology • Clayey-marl formations, with scattered intercalations of sandy- marl • The presence of the sand layers in combination with the inclination of the layers acts as a water bank, creating confined water masses of hihigh h capacitity and hdhydros ttitatic pressure • During slope excavation, intense water flow was monitored from the sand layers of the “champagne” effect type and creation of mudflow

Our Services • Investigation of the in-situ geotechnical conditions of the subbase • Qualitative classification of the subbase according to UIC719R 2008 • Selection of the required subbase reinforcement according to UIC719R 2008 • Appropriate reinforcement of the subbase with geogrids and soil replacement in sections of the project where the minimum requirements of the UIC719R 2008 are not met.

Client Construction Joint Venture AKTOR S.A. – TERNA S.A. – J&P AVAX S.A.

1.40m(πλάτος)x1.20m(ύψος) .

Πά σσαλοι διάτμησης από Χ

Θ Special Geotechnical Applications – οπλισμένο σκυρόδεμα C20/25 .

διαστάσεων O100/2.00m, L=12.00m Χ

3 : 1

K-ê 4 ΟΡΙΟ ΑΠΑΛΛΟΤΡΙΩΣΗΣ :

Τμή 0 μα 4 . 31 Πα 1 σσ 30 άλω 29 L=6 ν Δ 2 1.2 ιάτ 8 0m μησ K-ð 2 4 η 7 : ς 26 3 2.0 25 0 24

% 23 3 4 2 : 2 1 21 2 Αρμός 2εκ. 0 Landslide Rehabilitation 19 1 1 8 : 1 17 16

% 15

4 0

1 : 4 4 . :

DSR6 13 3

1 4 2 :

1 3 3 : 11 . 1 3 10

0 %

9 μού 0 % Πόδας αναβαθ . 4

4 5

0 Αρμός 2εκ. 8 .

2 7 6 2.0 Στέψη αναβαθμού 5 0 0 % 1 0 4 . :

2 4 1 3 2

1 . 1 : Πόδας αναβαθμού % 7 0 1 4 4 .

1 0

% Στέψη αναβαθμού 4

. 1

4 Πόδας αναβαθμού

0 4%

. Earthworks at North Portal of 5

. 4%

Στέψη αναβαθμού

1 :

0 1

Πόδας αναβαθμού

. Αποστραγγιστική τάφρος

5 1 σύμ φωνα με υδραυλική μελέτη

4% : 0 1

Στέψη αναβαθμού 0

3 .

: 2 %

1 4

% 1 4

. 2 Πόδας αναβαθμού

% 1 5 : % 4 1 4

0 1 . :

2 1

: %

1 4 Στέψη αναβαθμού

4 Kallidromo Railway Tunnel 5 1 1 :1 : 1 % 4 1 0 βαθμού : 1 Πόδας ανα

0 : 1

6 1

2 2 Στέψη αναβαθμού

4% 1 : 1 % 4 1 3 : : 1 2 DSR6 1 Fthiotida Providence, Komnina Region BH2 :1 Πόδας αναβαθμού

1 :

% 1

1 4

. % Σχεδιασμός μόνιμων πρανών

2 σύμφ ωνα με εγκεκριμένες γεωτεχνικές μελέτες Εγκάρσια κανάλια εκροής σύμφωνα με υδραυλική μελέτη

1 Στέψη αναβαθμού

ΙΧΝΟΣ ΟΡΙΟΥ ΑΣΤΟΧΙΑΣ ΕΠΙ

1 : ΥΦΙΣΤΑΜΕΝΟΥ ΑΝΑΓΛΥΦΟΥ :

X.Θ. 15+714 - X.Θ. 15+820 1 Πόδας αναβαθμού

Project (07/2009)

% 4

Εγκάρσια κανάλια εκ ροής σύμ φωνα με υδραυλική μελέτη

1 .

4 5

: Landslide rehabilitation and slope protection in 3 areas of the project 1

2 from Ch. 15+365 up to Ch. 15+665 BH1

Αποστραγγιστική τάφρος σύμφωνα με υδραυλική μελέτη

ΑΞΟΝΑΣ ΔΙΠΛ from Ch. 15+710 up to Ch. 15+835 ΗΣ ΣΙΔ. ΓΡΑΜΜΗΣ from Ch. 16+651 up to Ch. 16+804 Excavation layout for the partial removal of landslided masses Construction Cost Total Cost: approx. 4 m. €

Π Σ ΕΡΙΟΧΗ ΕΦΑΡΜΟΓΗΣ Η ΤΥΠΙΚΗΣ Τ ΔΙΑΤΟΜΗΣ 787 Ε ΠΕΡΙΟΧΗ ΕΦΑΡΜΟΓΗΣ Λ 5 ΠΕ 3 ΡΙΟΧ Ε Η ΕΦ 0 ΤΥΠΙΚΗΣ ΔΙΑΤΟΜΗΣ ΑΡΜΟΓΗΣ 3 8 786 : 0

Μ . 1 Τ + ΥΠΙΚΗΣ ΔΙΑΤΟΜΗΣ 784 0

5 Σ Σχεδιασμ ός μόνιμων πρανών 7 1

Ο ΙΧΝΟΣ ΟΡΙΟΥ ΑΣΤΟΧΙΑΣ ΕΠΙ 7

0 . σύμφωνα με εγκεκριμένες

+ Λ γεωτεχνικές μελέτες ΥΦΙΣΤΑΜΕΝΟΥ ΑΝΑΓΛΥΦΟΥ 0 Σ . Θ

5 Ε . X.Θ. 15+714 - X.Θ. 15+820

Η 0

Χ 0 (07/2009) Τ 2

. .

. Κεφαλόδεσμος από οπ λισμένο Λ 1

Χ σκυρόδεμα C20/25 διαστάσεων Ε 1

+ Project Schedule

Μ 1.40m(πλάτος)x1.20m(ύψος) .

Πάσσαλοι διάτμησης από Χ Χ

Ρ οπλισμένο σκυρόδεμα C20/25 .

διαστάσεων O100/2.00m, L=12.00m Α ΟΡΙΟ ΜΟΝΙΜΗΣ ΕΚΣΚΑΦΗΣ Χ

3 : 1

ΕΠΙΧΩΜΑ ΧΩ ΡΙ Σ ΟΠΛΙΣΗ K-ê ΟΡΙΟ ΑΠΑΛΛΟΤΡΙΩΣΗΣ

Τ μήμ α Π 31 ασσ Design: 2009 - 2010 30 άλ ω 29 L=6 ν Δ 2 1.2 ιάτ 8 0m μησ K-ð 27 ης 26 25 2 4 3 : 23 1 22 21 2 Αρμός 2εκ. 0 19 18 17 16 15 14 DSR6 13 Construction: 2011 - 12 11 10 9 % 4 Αρμός 2εκ. 8 7 6 5 Ã 4 3 2 1

% 4

ΕΠΙΧΩΜΑ ΧΩΡΙΣ ΟΠΛΙΣΗ

3 0 : 5 . 1 2

0 5 . Project Description 2

ΕΠΙΧΩΜΑ ΜΕ ΟΠΛΙΣΗ ΓΕΩΠΛΕΓΜΑΤΩΝ

Απ οστρα γγ ισ τικ ή τάφρος σύμφωνα με υδραυλική μελέτη % 4 B 3 3

: :

1 1

Όριο επιχώματος 1 σταθεροποίησης - αποκατάστασης Works for the stabilization of the landslide phenomena and the final 2

: Αποστραγγιστική τάφρος 1 rehabilitation of the area, taking into account the in-situ conditions and σύμφωνα με υδραυλική μελέτη

4 0 3

0 :

. 2

4 Á DSR6 BH2 DSR6

Σχεδιασμός μόνιμων πρανών

3 : σύμφωνα με εγκεκριμένες 1

3 minimizing any destabilization risks. : γεωτεχνικές μελέτες Εγ κάρ σια κανά λια εκ ροής 1 σύμφωνα με υδραυλική μελέτη

Όριο επιχώματος ΙΧΝΟΣ ΟΡΙΟΥ ΑΣΤΟΧΙΑΣ ΕΠ Ι σταθεροποίησης -

3 ΥΦΙΣΤΑΜΕΝΟΥ ΑΝΑΓΛΥΦΟΥ αποκατάστασης : X.Θ. 15+714 - X.Θ. 15+820 1 Total affected area ~ 28,000m2 (07/2009)

4 Εγκάρσια κανάλια εκροής σύμφωνα με υδραυλική μελέτη

4 ΕΠΙΧΩΜΑ ΜΕ ΟΠΛΙΣΗ ΓΕΩΠΛΕΓΜΑΤΩΝ

Geology BH1 Αποστραγγιστική τάφρος σύμφωνα με υδραυλική μελέτη

3 1 ΑΞΟΝΑΣ Δ • Clayey-marl formations, with scattered intercalations of sandy-marl ΙΠΛΗΣ ΣΙΔ. ΓΡΑΜΜΗΣ

: • The presence of the sand layers in combination with the inclination of 1 the layers acts as a water bank, creating confined water masses of Surface final layout and rehabilitation high capacity and hydrostatic pressure • During slope excavation, intense water flow was monitored from the sand layers of the “champpgagne” effect type and creation of mudflow Our Services

DSR6

ΛΕΠΤ. "Α" 4% 4%

• Geotechnical investigation program and geotechnical interpretation of 4%

ΛΕΠΤ. "B"

Í.Ó.ÃÑÁÌÌÇ the landsliding mechanism 4% • Drainage works design 4% 4% • Design of the best possible slope layout and removal of the landslide materials • Stabilization and rehabilitation embankments • Landslide retaining pilewalls Slope failure rehabilitation typical cross section • Long-term anticorrosion slope protection • Execution of back analysis and determination of the potential sliding surfaces Design Details • Excavation layout for partial removal of landslide material on 1:3 slopes • Geometrical and reinforcement calculation of the necessary pilewall systems for the protection of the excavations and strengthening of the subbase • Application of reinforced embankment for stabilization and rehabilitation of the area with 1:3 slope • Application of 3D geocomposite and adequate hydraulic protection of the slopes Client Terrain slide failure signs Construction Joint Venture AKTOR S.A. – TERNA S.A. – J&P AVAX S.A.

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Technical Works Retaining Walls with Strip Foundation Elefsina – Korinthos – Patra – Pyrgos – Tsakona Motorway, Concession Project Central & Southern Greece

Project Retaining walls at embankments’ toes Retaining structures at open cuts’ toes

Construction Cost Total cost: approx. € 8m. Retaining wall general view Project Schedule Design: 2009 - 2011 Construction: 2009 -

Project Description Retaining walls Total length: 2.290m Height: 2,0m-9,75m Retaining structures TlTotal lhlength: 820m Height: 2,0m-8.00m

Geology Retaining wall construction Marls, conglomerates, limestones, scree materials, alluvial deposits, gravels, clays, silts, sands

Our Services • Estimation of the input geotechnical design parameters • Definition of the geometry of the structures (cross section, height etc.) • Elaboration of all the necessary analysis and checks for structures dimensioning • Detailed construction drawings • Detailed geotechnical & structural design

Construction Details Embankment construction behind the retaining wall • RifReinforce dconcrete C20/25, C30/37 • Surface foundation • Additional components at walls crest (safety barriers, sound barriers etc.)

Clients • APION KLEOS Construction JV (VINCI CONSTRUCTION GRANDS PROJETS S.A.S. – HOCHTIEF Construction AG - J&P-AVAX S.A. - ATHENA S.A. – AKTOR S.A. – GEK/TERNA S.A.) • OLYMPIA JOINT VENTURE (HOCHTIEF Construction AG - AKTOR S.A.) • AKTOR S.A. • VINCI CONSTRUCTION GRANDS PROJETS S.A.S. Retaining structure typical cross section

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Technical Works Underpasses Elefsina – Korinthos – Patra – Pyrgos – Tsakona Motorway, Concession Project Central & Southern Greece

Project Detailed design of nineteen (19) Underpasses

Construction Cost Total cost: approx. € 6,5m. General view Project Schedule Design: 2009 - 2011 Construction: 2009 -

Project Description Three (3) types of underpasses • Underpasses founded in two cast in situ reinforced concrete pile series • Underpasses with surface (pad) foundation (box type) • UdUnderpasses consiiisting of two wall-typeabutments fddfounded in reinforced concrete piles

Geology Conglomerates, marls, scree materials, alluvial deposits, Typical cross section gravels, clays, silts, sands

Our Services • Estimation of the geotechnical design parameters and the maximum groundwater level • Definition of the geometry of the underpasses (cross section, height etc.) • Elaboration of all the necessary analysis and checks for structures dimensioning • Detailed construction drawings • Detailed geotechnical & structural design

CttiConstruction DtilDetails • Reinforced concrete C20/25, C30/37 Simulation analysis model • Surface foundation • Foundation in piles

Clients • OLYMPIA JOINT VENTURE (HOCHTIEF Construction AG – AKTOR S.A.) • AKTOR S.A.

Typical cross section

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Special Geotechnical Applications Reinforced Embankment Final Designs and Mechanically Stabilized Earth Wall Detailed Designs Elefsina – Korinthos – Patras – Pyrgos - Tsakona Motorway, Concession Project Central & Southern Greece

Project Detailed designs of mechanically stabilized earth walls with height up to 15m and reinforced embankments of height up to 26m for treating with adverse geometries during the construction of highway embankments Σ 4 O R S ΑΞΟΝΑ M AXIS

Construction Cost Total project’s cost: approx. € 80 m.

Project Schedule Design: 2009 - 2010 Construction: -

Reinforced embankment cross section Project Description Total reinforced embankment and MSEW length: ~8300m Maximum height: 26m MSEW slope: 1:1 up to vertical μου / ΛΕΠΤΟΜΕΡΕΙΑ "C " D E T A IL " C" αυτοκ

ξονας

Reinforced embankment slope: 2:3 up to 1:1 otorway axis Α ' M

+61. 68

+60.12 +59.87 +60. 46

+58.54

+56.62 Λ ΕΠ ΤΟΜΕΡΕΙΑ "A " Geology D E T A IL " A "

+54. 70 Pliocene and Plio-pleistocene Marls, Conglomerates, +53.73

+52. 78

+51. 30 Alternations of Marl-Conglomerates, Alluvial Deposits, +51.12 +50. 86 +50.12 +50. 10

+50. 34 Weathered slope materials, Sands, Gravels, Clay-Silts +50. 00

Our Services • Geotechnical interpretation and design parameter assessment Composite mechanically stabilized earth-wall with • Stability evaluation of MSEW with specialized software foundation support cross section • Internal and external stability checks • Appropriate geogrid application according to fill material characteristics • Gabion walls layout in geometrically complex areas • Detailed design

Client AKTOR S.A.

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Special Geotechnical Applications Complex Retaining Systems and Structures Elefsina – Korinthos – Patras – Pyrgos - Tsakona Motorway, Concession Project Central & Southern Greece

Project Detailed designs for construction of retaining wall system with single or double pile-walls and application of permanent prestressed anchors for the secure execution of highway works in adverse geotechnical and geometrical areas

Construction Cost Total project’s cost: approx. € 9 m.

Project Schedule Design: 2009 - 2011 Construction: - Retaining wall at geometrically adverse areas cross section

Project Description Existing ground level from Road Design Λεπτομερής το πογραφική απότύπωση από επιτόπου εργολάβο AW1 TtlTotal lthlength of compllex retiitaining systems: ~1000m DtildtDetailed topograp hilhica l su rv ey by AW1 con trac tor

Φράχτης ανάσχεση ς βραχοπτώσεων ο οποίος θα καθοριστεί σε επ όμε νη φάση μελέτης Rockfall protection barrier which should be Maximum height of retaining systems: 35 m defined at a next design phase .39 4.20 1.35 14.98 Σκυρόδεμα διαμόρ φωσης κλίσεω ν C8/10 10εκ Configu ration co ncrete C8/10 10cm .30 Τοίχος πρ οστασίας επίχωσης από οπλισμένο σκ υρό δεμ α C30/37

3: Protection wall of backfilling 2 .60 w it h C30 /3 7 re in fo rc ed concrete .58

Geology 2.80 Κεφαλόδεσμος από οπλισμένο σκυρόδεμα C30/37 Επίχωση .50 διαστάσεων 1.35mX1.10m (πλάτος X ύψος) Backfil Pile Cap 1.35mX1.10m (width X height) Μόνιμες περιφραγματικές απόστραγγιστικές οπές μήκους 10.0m, απόστραγγιστική τάφρος with C30/37 reinforced concrete ονομαστικής διαμέτρου 3'', ενδιαμέσως των πασσάλων, με Drainage trench Pliocene and Plio-pleistocene Marls, Conglomerates, ανωφερική κλίση 10°, με δύο απόστραγγιστικούς σωλήνες από 1.10 PVC (π.χ. διπλοί σω λή νε ς DURV IN IL ), με υλικό φίλτρου απότελούμενο από θερμοπλαστικές σφαίρες ή χαλαζιακή άμμο. Σκυρόδεμα εξομάλυνσης C8/10 10εκ .50 Permanent double wall screen drainage holes, 10.0m long, Lean co ncrete C8/10 10cm nominal diameter 3'', between the piles, with 10° minimum upward 8.50 inclination, consisting of two concentric drainage PVC pipes (e.g. Πέτασμα οπλισμένου σκυροδ έματος DURVINIL double wall screen), with filtering material which is C30/37 στ ατ ικ ού πάχους 25cm Alternations of Marl-Conglomerates, Alluvial Deposits, Final lining of reinforced concrete composed by thermoplastic spheres or quartz sand.

3.00 C30/37, 25cm static thickness 3.50

0 00 50 1 9. 17. Εγκοπή επί το υ πετάσματος (Λεπτ."Α") Weathered slope materials, Sands, Gravels, Clay-Silts Slot on the pile lining (Detail "A") 7.00 11.45

5° or 15° 1.60 1.55 .25

9.50 1 .

3 11.00

0 16.50 0 5 Our Services . Φρεατοπάσσαλοι από οπλισμ ένο σκυρό δεμ α C20/25 διαστάσεων Ø1.0 0/1.50 m, μήκο υς 11 .00m Bored piles Ø1.00/1.50m, length 11.00m .75 hydraulic arrangements with C20/25 reinforced concrete Διάτρητος τσιμεν τοσωλή νας Φ200 με ελάχιστη κλίση 1% • Geotechnical interpretation and design parameter Perforated cement pipe Φ200 wit h minimu m 1% inclina tion 38 Στραγγιστήριο με γε ωύφασμα κα ι χονδρόκοκκο Μόνιμα προεντεταμένα αγκύρια μήκους, αριθμού τενόντων υλικό σύμφωνα με παρ.38 της Τ.Σ.Υ. 1.00 και φορτίου προέντασης ως σχετικό πίνακα. Drain from big size granular material covered assessment Εναλλάξ εφαρμογή κλίσης αγκυρίων 5° και 15° ανά πάσσαλο. .25 with geotextile according to par. 38 of T.C.C. P ermane nt pre-stressed an chors with length, number of stra nds and p restressed load according to the releva nt table. • Geotechnical parameters optimization with slope stability Variation of anchor inclination from 5° to 15° per pile. Composite retaining system with prestressed anchors back analysis cross section • Specific load check of the retaining system from random

sliding surfaces SR30L • Serviceability check of the retaining system • Check and dimensioning of prestressed anchors according to EC7 • Assessment and determination of the seismic load according to the area’s geotechnical profile • Detailed design

8 Clients • OLYMPIA JOINT VENTURE (HOCHTIEF Construction AG - AKTOR S.A.) 69 • AKTOR S.A.

Composite triple retaining system with prestressed anchors cross section

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Highway General Excavation Works Earthworks Designs Elefsina – Korinthos – Patras – Pyrgos - Tsakona Motorway, Concession Project, Central & Southern Greece Project Detailed geotechnical earthwork designs in the Korinthos – Patras stretch from C.P. 20 up to C.P. 80 (Cuts & Embankments) Construction Cost Αποστραγγιστική τριγωνική τάφρος T ri angul ar drainage ditch

Τοπική εφαρμογή μόνι μων περιφραγματικών απόσ τραγ γι σ τι κών οπών μήκους 8.0m, ονομαστικής δι αμέτρου 3'', σε κάνναβο 4. 00mx4.00m , με ανωφε ρι κή κλίσ η 10°, με δύο απόσ τραγγιστικούς σωλήνες απ ό PVC Μόνιμα αγκ ύρι α ολόσ ωμης πάκτωσης, με τσιμεντένεμα σε όλο το μήκος +45. 67 (π.χ. δι πλοί σωλήνες DURVINIL), εάν απαι τε ί ται τους , φέρουσας εφελκυστικής ικανότητας 250kN, B500c, Ø28, από Αγκύρωση μεταλλι κού πλέγματος Local appl i cati on of permanent doubl e wall screen drainage holes, 8.0m γαλβανι σμένο χάλυβα, μήκ ους 12.00m, σε δι άτρημα Ø3'', σε πεσσ οειδή Anchori ng of t he steel wire mesh net l ong, nomi nal di am eter 3'', in grid 4.00mx 4.00m, with 10° mi nimum κάνναβο 2.0m x 2.0m, με κατωφερική κλίση 10° upward i ncl i nat i on, consi sti ng of two concentric drainage PVC pipes Total project’s cost: approx. € 180 m. P erm anent soi l nai l s ful l y grouted, tensile bearing capacity 250kN, (e.g. DURVINIL double wall screen), if required B 500c, Ø28, f rom gal vani s ed s t eel , 12. 00m length, in drill hole Ø3'', in staggered grid 2.0m x 2. 0m, at downward i nclination 10° 10°

Εφαρμογή εύκαμπτου τρι σ δι άσ τατου γεώπλεγματος ενισχυμένο με δι πλής περιέλιξης, 8. 00 ατσάλινο πλέγμα με βαρύ γαλβάνισ μα (τύπ ου Galfan), με ελάχιστη διάμμετρο 2.7mm, τύπου 8x10 (ελάχιστο άν οι γ μα καννάβου D=8cm ), ελάχιστης εφελκυστικής αντοχής 45kN/m, ή γεωσύνθετου πλέγματος τύπ ου M A CMAT R (R1 8127GN) ή αντί σ τοι χο A ppl i cat i on of rei nforced Geom at, wi th doubl e twisted, woven steel wire mesh with Galfan coati ng, wi re di ameter 2.7m m or m ore, type 8x10 (minimum mesh opening D=8cm), of m i ni m um tensi l e strength 45kN/m, or steel reinforced geomat type MACMAT R (R1 8127GN) or equivalent

Project Schedule Δοκός απ ό οπλι σ μένο σκυρόδεμα C30/37 γι α τη σύνδεση των π ροε ν τεταμένων αγκ υρί ων Μόνιμα προεντεταμένα αγκύρια μήκ ους, αριθμού τενόντων (Βλέπε σχέδιο Λε πτομερ ει ών 1OKF01323A- ) και φορτίου προέ ντασ ης ως σχετικό πίνακα. 2 R e i n f o r c e d c o n c rete beam C 3 0 /3 7 f o r t h e c o nnecti on Εναλλάξ εφαρμογή κλίσης αγκυρί ων 5° και 10°, :1 σε κάνναβο 4.0m x 2.0m (ύψος x μήκος) of the pre-stressed anchors (S ee drawi ng of details 1OK F 01323A-)

P e r m a n e n t p r e - s t r e s s e d a n c h o r s wi th l engt h, num ber of 14.89 s t r a n d s a n d p r e s t r e s s e d l o a d a c c o r d i ng to the rel evant tabl e. V a r i a t i o n o f a n c h o r i n c l i n ati on from 5° to 10°, e v ery successi ve pre-stressed anchor, 22.00 Design: 2008 - 2011 i n grid 4.0m x 2. 0m (hei ght x length) 5° ή/ o r 10° 8. 00 30.00 4. 00 10°

Construction: 2008 - 2.00 22.00 Αύλακα απ οσ τράγγ ι σ ης αναβαθμού 4.00 Bench drainage trench 2.50 8.00 4.50 Αγκύρωση μεταλλικού πλέγματος 30.00 A nchori ng of the steel wire mesh net 1.50 +30.87 1.00 Εφαρμογή εύκαμπτου τρι σ δι άσ τατου γεώπλεγματος ενισχυμένο με δι πλής περιέλιξης, ατσ άλι ν ο πλέγμα με βαρύ γαλβάνι σμα (τύπου G a l f an), με ελάχιστη δι άμμετρο 2.7mm, 7. 44 τύπ ου 8x10 (ελάχιστο άνοι γμα καννάβου D=8cm), ελάχιστης εφελκυστικής αντοχής 45kN/m , ή γεωσύνθετου πλέγματος τύπου M A CM AT R (R1 8127GN) ή αντίστοιχο Appl i cati on of rei nforced Geomat , wi th doubl e twisted, woven steel wire mesh with Galfan 10° coating, wi re di am eter 2.7mm or more, t ype 8x10 (minimum mesh openi ng D=8cm), of mi ni mum t ensi l e strength 45kN/m , or steel reinforced geomat type MACMAT R (R1 Project Description 22.00 8127GN) or equivalent 2 :1 5° ή/or 10° 8.00 30. 00 7.64 4.00 2.00 4.00 Total length of Excavation Works Αύλακα αποστράγγι σης αναβαθμού B ench drai nage trench 22.00 2.50

1.50 +23. 41 Αγκύρωση μεταλλικού πλέγματος A nchori ng of the steel wire mesh net 8.00 30. 00 1.00

3.82 4. 50 2 Τοπική εφαρμογή μόνιμων περιφραγματικών απόσ τραγγ ι σ τι κών οπών :1 μήκους 8.0m, ονομασ τι κής δι αμέτρου 3'', σε κάνναβο 4.00mx4.00m, με

ανωφερι κή κλίση 10°, με δύο απόσ τραγγιστικούς σωλήνες από PVC 2.00 5.15 Cuts: 12,000m Μόνιμα προεντεταμένα αγ κύρι α μήκους, αρι θμού τενόντων (π.χ. δι πλοί σωλήνες D U RVINIL), εάν απαι τε ί ται .30

και φορτίου προέντασ ης ως σχετικό πίνακα. Local appl i cati on of permanent doubl e wall screen drainage holes, 8.0m 4.22 3.00 1.55 Εναλλάξ εφαρμογή κλίσης αγ κυρί ων 5° και 10°, l ong, nom i nal di am eter 3'', in grid 4.00mx4.00m, with 10° mi nimum σε κάνναβο 4.0 m x 2.0m (ύψος x μήκος) u p w a r d i n c l i n a t i o n , c o n s i s t i n g o f t w o concent ri c drai nage PVC pipes 10° Permanent pre-stressed anchors with length, number of

(e.g. DURVINIL double wal l screen), if required 1.50

.00 1.50 strands and prestressed l oad accordi ng to the relevant table. 17 . 50 Vari at i on of anchor i ncl i nation from 5° to 10°, every s u c c e s s i v e p r e - s t r essed anchor, .00

i n grid 4.0 m x 2.0m (hei ght x length) 8 1.11 +18.17 Bare or partially reinforced embankments: 23,000 m 25.00 2.30 1.50 Μόνιμα αγ κύρι α ολόσ ωμης πάκτωσης, με τσ ι με ντέ ν ε μα σε όλο το μήκ ος Μόνιμα προεντεταμένα αγ κύρι α μήκους, αρι θμού τενόντων τους, φέρουσας εφελκυστικής ικανότητας 250kN, B500c, Ø28, από και φορτίου προέντασης ως σχετικό πίνακα. γαλβανισ μένο χάλυβα, μήκους 12.00m, σε δι άτρημα Ø3'', σε πεσσοειδή Εναλλάξ εφαρμογή κλίσης αγ κυρί ων 5° και 10° κάνναβο 2.0m x 2.0m , με κατωφερική κλί ση 10° Permanent pre-stressed anchors with length, number of Permanent soi l nai l s ful l y grouted, tensile bearing capacity 250kN, strands and prestressed l oad accordi ng to the relevant table. B500c, Ø28, f rom gal vani sed steel , 12.00m length, in drill hole Ø3'', in Vari at i on of anchor i ncl i nation from 5° to 10°, every st aggered grid 2.0m x 2. 0m, at downward i nclination 10° Open Cuts: successive pre-stressed anchor • Slope layout and reinforcement of open cuts • Use of fully grouted permanent or prestressed anchors Open cut with prestressed anchors and fully bonded permanent anchors cross section • Slopes with gradient 2:3~ 3:1 • Maximum slope height: 12m

Υφιστάμενο φυσικό αν άγλ υφ ο • Maximum total cut height: 65m E x i s t i n g g r ound level Περίφραξη Fencing Αποστραγγιστική τριγωνική τάφρος ΚΛ./SC : 1:50 T ri angul ar drainage ditch 1. 25 1. 25 1. 25 1.25 1. 25

Embankments: Αγκύρωση μεταλλι κού πλέγματος Anchoring of the steel wire mesh net

M εταλλικό πλέγμα τύπου Gal fan 8/2.4 ή αναλόγου 4 2 .50 :1 Steel wire mesh net Galfan

11.16 8/2.4 type or equivalent

3. 00

° 6 0 . 00 Αύλακα απ οσ τράγγ ι σ ης αναβαθμού

. 2. 50 2. 50 • Soil fill material 6 Bench drainage trench Τοπική εφαρμογή μόνι μων περιφραγματικών απ οσ τραγ γ ι σ τι κ ών οπών 1

μήκους 6.0m, ονομασ τικής δι αμέ τρου 3'', σε κάνναβο 2.0mx4.0m 0 ° 1. 00 Εκτοξευόμενο σκυρόδεμα γι α την πλήρωση των (ύψος x μήκος), με ελάχιστη ανωφε ρική κλίση 6°, εάν απαι τεί ται 1. 50 κοιλοτήτων που δημι ουργούνται από υπερεσ καφές L o c a l a p p l i c a t i o n o f p e r m a n e n t d o u b l e wall screen drainage holes, ή από τοπι κέ ς αστοχίες (εάν απ αι τε ί ται ) 6. 0m l ong, nom i nal di am et er 3'', i n a 2.0mx4.0m (height x length) Gunite for the filling of cavities formed by 4.00 pat t ern, wi t h 6° m i ni m um upw ard inclination, if required ov er e x c av at i on s o r l oc al f ailures (if required) Αγκύρωση μεταλλι κού πλέγματος Anchoring of the steel wire mesh net • Bare or partially reinforced embankments with geogrids due to M εταλλικό πλέγμα τύπου Gal f an 2 8/ 2.4 ή αν αλόγου : 1 50 Steel wire mesh net Galfan 4.

11.20 8/ 2.4 type or equivalent

3.00 2. 50

° 0 6. 00 Αύλακα απ οσ τράγ γ ι σ ης αν αβαθμού . 2. 50 6 Bench drai nage trench

0 ° 1.00 seismic design 1. 50 Αγκύρωση μεταλλι κού πλέγματος με αγκύρια ολόσ ωμης πάκτωσης, με τσ ι με ντέ ν ε μα σε όλο το μήκος τους, φέρουσας εφελκυστικής ι κανότητας 200kN, M εταλλικό πλέγμα τύπου Gal fan 6.00 B500c, Ø25, απ ό γαλβανισμένο χάλυβα, μήκους 3.00m , σε δι άτρημα Ø3'', σε 8/ 2. 4 ή αναλόγου πεσσοειδή κάνναβο 2.5m x 2.5m , με κατωφερική κλί ση 10° Steel wire mesh net Galfan A n ch or a ge o f t h e st e el wi re m es h n et wi th soil nails fully grouted, tensile 8/2.4 type or equivalent

b e a r i n g c a p a c i t y 2 0 0 k N , B 5 0 0 c , Ø 2 5 , f r o m galvanised steel, 3.00m length, in 2 :1 dri ll hol e Ø3'', i n staggered grid 2.5m x 2.5m , at downward i nclination 10° 10. 00 • Modulation Geometry: one or double sided 3. 00 ° 6 0 . 00 Αύλακα αποστράγγι σης αναβαθμού

. 2.50 6 Bench drainage trench

Τοπική εφαρμογή μόνι μων περιφραγματικών αποστραγγι στι κών οπών 0

0 μήκους 6. 0m , ονομαστικής διαμέτρου 3'', σε κάνναβο 2.0mx4.0m ° 1. 00

(ύψος x μήκος), με ελάχιστη ανωφε ρική κλί ση 6°, εάν απαι τε ίται 1. 50 Local appl icat i on of perm anent double wall screen drainage holes, 6. 0m l ong, nom i nal di am et er 3'', in a 2.0mx4.0m (height x length) patt ern, w i t h 6° m i ni m um upward inclination, if required 4.00 M εταλλικό πλέγμα τύπου Gal f an Αγκύρωση με ταλλ ι κού πλέγματος 8/2.4 ή αν αλόγου • Slopes with gradient 2:3 Anchori ng of the steel wire mesh net S t ee l w i re mesh net Ga l fan 8/ 2.4 type or equivalent

2 :1 11.00

3. 00

° 6 0 . 00 Αύλακα αποσ τράγγι σης αναβαθμού

. 2. 50 6 Bench drainage trench

0 • Deck width: 30m - 50m ° 1. 00 1.50

Αγκύρωση με ταλ λι κ ού πλέγματος με αγ κ ύρια ολόσ ωμης πάκτωσης, με τσι μεντέ νε μα σε όλο το μήκος τους, φέρουσας εφελκυστικής ι κανότητας 200kN, B500c, Ø25, από γαλβανισμένο χάλυβα, μήκους 3. 00m , σε διάτρημα Ø3'', σε 4.00 M εταλλικό πλέγμα τύπου Gal f an πεσσοειδή κάνναβο 2.5m x 2.5m , με κατωφερική κλίση 10° 8/ 2. 4 ή αν αλόγου A nc horage of t he s t eel w i re m es h net wi th soil nails fully grouted, tensile S t ee l w i r e mesh net Gal fan bearing capacity 200kN, B500c, Ø25, from galvanisedsteel300mlengthgalvanised steel, 3.00m length, in 8 / 2 .4 t y p e o r e q uivalent

drill hole Ø3'', in staggered grid 2.5m x 2.5m , at downward inclination 10° 3 : 1

• Maximum height: 14m 11.00 3. 00

° 0 6. 00 Αύλακα απ οσ τράγγ ι σ ης αναβαθμού . 2.50 6 Bench drai nage trench Τοπική εφαρμογή μόνι μων περιφραγματικών αποσ τραγγι σ τικών οπών 1 0 Ενδεικτική διαμόρφωση οδοποιίας

. μήκους 6.0m, ονομαστικής διαμέτρου 3'', σε κάνναβο 2. 0m x4.0m 0 ° 1.00 Indicative roadway configuration

(ύψος x μήκος), με ελάχιστη ανωφε ρική κλί σ η 6°, εάν απαι τε ί ται 1. 50 Local appl icati on of perm anent double wall screen drainage holes, Τα χαρακτηριστικά της στρώσης 6.0m long, nom inal diameter 3'', in a 2.0mx4.0m (height x length) έδρασης οδοσ τρωσ ί ας θα καθορισ τούν 4.00 ΔΡΟΜΟΥ pat tern, wi th 6° m i ni m um upward inclination, if required από τη σχετική Μελέτη Οδοσ τρωμάτων / T h e c h a r a c t e r i s t i c s of the pavement

Αγκύρωση μεταλλικού πλέγματος ΑΥΤ

bedding layer will be determined by the Anchoring of the steel wire mesh net relevant Pavement Design

3 : Geology 1 3. 00 11.00 ΑΞΟΝΑΣ MOTORWAY AXIS

° 0 6. 00 . 1.20 .60

2. 50 .375 6 4.85 .50 .375 1 13.47 0

° 1. 00 .50

Αγκύρωση με ταλ λι κού πλέγματος με αγ κύρια ολόσ ωμης πάκτωσης, με 1. 30 τσι μεντέ νε μα σε όλο το μήκος τους, φέρουσας εφελκυστικής ι κανότητας 200kN, Pliocene and Plio-pleistocene Marls, Conglomerates, Alternations of B500c, Ø25, από γαλβανισμένο χάλυβα, μήκους 3. 00m , σε διάτρημα Ø3'', σε πεσσοειδή κάνναβο 2.5m x 2.5m, με κατωφερική κλίση 10° Τοίχος αν αχαί τι σ ης καταπτώσεων Anc horage of the s teel wi re m esh net w i th soil nails fully grouted, tensile "Βλέπε παρατήρηση No 19" Rock slides intercepting walls bearing capacity 200kN, B500c, Ø25, from galvanised steel, 3.00m length, in "See remark No 19" Marl-Conglomerates, Alluvial Deposits, Weathered slope materials, drill hole Ø3'', in staggered grid 2.5m x 2.5m , at downward inclination 10° Sands, Gravels, Clay-Silts, Limestones High open cut with appropriate slope protection with Our Services anchored wire mesh cross section • Geotechnical interpretation and design parameter assessment • Geotechnical parameters optimization with slope stability back

analilysis Α A • Stability evaluation with specialized software • Appropriate geogrid application according to fill material characteristics • Check and dimensioning of prestressed anchors according to EC7 • Assessment and determination of the seismic load according to the area’s geotechnical profile • Application of geocomposites for hydraulic erosion control as well as rock barrier – rock fall systems • Detailed design Partially reinforced embankment (due to seismic design) cross section Clients • OLYMPIA JOINT VENTURE (HOCHTIEF Construction AG – AKTOR S.A.) • AKTOR S.A.

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Highway General Excavation Works Highway Excavation Works, PATHE SECTION, Maliakos – Kleidi Motorway, Concession Project Central Greece Project Highway excavation works for Maliakos Kleidi Motorway GU 10 ~ 14, GU 16 ~ 19, GU 24 ~ 25 Construction Cost Total Cost: approx. € ~600 m. Project Schedule Design: 2007 - 2009 Construction: 2007- Project Description Total length of excavation works: GU 10 ~ 14: 5,350m / GU 16 ~ 19: 6,050m / GU 24 ~ 25: 17,200m 1. Embankments : soil fill or rock fill material reinforced or loose with geogrids Modulation geometry: one or double sided Reinforced slopes with gradient 2:1 ~ 2:3 Deck width: 30m - 50 m Maximum Height: 11m 2. Open Cuts :Modulation and support of open cuts Slopes with gradient 2:3 Maximum height: 10m

Geology Geotechnical evaluation model GU 10 ~ 14: Recent disposals, Phyllites GU 16 ~ 19: Recent Disposals, ophiolithic sequence, Limestones, marbles GU 24 ~ 25: Disposals, ophiolithic sequence Our Services • Ground geotechnical interpretation report • Geotechnical drawings of longitudinal and cross sections • Detailed geotechnical design • Construction drawings Construction Details 1. Embankments : • Construction of drainage trenches at the foot of the slope • Construction of embankments with soil fill or rock fill materials

• Foundation of the embankments with reinforced geogrids Embankment ‘s typical cross section • Construction of support walls • Construction of embankments with severe gradient and gabion facing • Foundation of the embankments with the use of piles 2. Open Cuts: • Installation of anchors • Installation of meshes • Construction of support walls Client MALIAKOS KLEIDI CONSTRUCTION JV (HOCHTIEF - AKTOR – J&P AVAX – VINCI CGP – AEGEK – ATHENA)

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Special Geotechnical Applications Retaining Works inside a Landslided Area Pathe Section Maliakos – Kleidi Motorway, Concession Project Central Greece

Project Construction of retaining wall system with single or double pile-walls for the secure execution of highway works inside landslided area

Construction Cost Total project’s cost: approx. € 1,5 m.

Project Schedule Design: 2010 - 2011 Construction: -

Layout depicting the landslided areas Project Description Construction of retaining wall system with single or double concrete cantilever pilewalls for the secure execution of highway works inside a landslided area Total length of pilewall system: ~300m Maximum height of pilewall system: 10m Total slope height: 30m Excavations and the retaining system structure plan Geology view The bedrock of the landslide area includes ophiolite rocks The overlying soil materials consist of a sequence of slided masses

Our Services – Design Details • Detailed design of permanent open cut • Geotechnical interpretation and design parameter assessment • Special design and dimensioning of the pile system with finite elements software •Specific load check of the retaining system from random sliding surfaces • Serviceability check of the retaining system • Assessment and determination of the landslided area’s Foot-wall founded on conventional embankment in seismic load combination with EPS fill

Client MALIAKOS KLEIDI CONSTRUCTION JV (HOCHTIEF - AKTOR – J&P AVAX – VINCI CGP – AEGEK – Cross Section with double retaining wall pile series ATHENA)

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Special Geotechnical Applications Embankment Designs with lightweight materials, Pathe Section Maliakos – Kleidi Motorway, Concession Project Central Greece

Project Bridge replacement by Embankment with lightweight materials (EPS) in combination with special protection structures for the protection of the central natural gas pipeline and the high speed railway line from Athens to Thessaloniki

CiConstruction Cost Composite embankment with conventional and lightweight Total project’s cost: approx. € 18 m. materials and protection structure for the natural gas pipeline Project Schedule Design: 2009 - 2011 Construction: -

Project Description Combination of conventional and lightweight embankment with EPS application for the protection of the central natural gas pipeline and the high speed railway line from Athens to Thessaloniki and optimization of the construction conditions Total embankment length: ~700m Total lightweight embankment length: ~120m Maximum lightweight embankment height: 10-16m Retaining wall founded on piles with EPS fill Lightweight embankment slopes: 2:3 up to vertical

Geology Alluvial deposits, silt-clay of low to medium plasticity Bedrock formation from weathered layers of amphibolitic schist

Our Services – Design Details • Detailed geotechnical design • Geotechnical investigation and pile loading tests • Trial embankment monitoring for a 3-month time period • Technoeconomic design for minimizing construction cost Foot-wall founded on conventional embankment in • Geotechnical foundation design and optimization of the combination with EPS fill protection structures of the central natural gas pipeline, the National Road and the high speed railway from Athens to Thessaloniki • Structural and seismic protection design of the conventional and lightweight embankment • Design of retaining wall for lightweight and conventional embankment with mixed foundation on piles and slab- type footing

Client Composite embankment with conventional and lightweight materials and protection AKTOR S.A. structure for natural gas pipeline as well as railway underpass

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr Special Geotechnical Applications Mechanically Stabilized Earth Walls Pathe Section Maliakos – Kleidi Motorway, Concession Project Central Greece

Project Mechanically stabilized earth walls with height 10-16m constructed by gabions as retaining walls or bridge abutments

Construction Cost Total project’s cost: approx. € 5 m.

Project Schedule Design: 2009 - 2011 Construction: 2011 – MSEW foundation area excavation layout

Project Description Mechanically stabilized earthwWalls with height 10-16m constructed by gabions as retaining walls or bridge abutments Total MSEW length: ~500m Maximum height: 10-16m MSEW slope: 85o up to vertical

Geology GU 10 ~ 14: Recent deposits, Phyllites GU 16 ~ 19: Recent deposits, ophiolithic sequence, limestones

Our Services – Design Details Grid and gabion connection plan view and details • Detailed geotechnical design • Geotechnical interpretation and design parameter assessment • Stability evaluation of MSEW with specialized software • Internal and External stability checks • Appropriate geogrid application according to fill material characteristics • Gabion modulation in geometrically complex areas

Client MALIAKOS KLEIDI CONSTRUCTION J/V (HOCHTIEF – AKTOR – J&P AVAX – VINCI CGP – AEGEK – ATHENA)

MSEW bridge abutment longitudinal section

Project Highway general excavation works Construction Cost Total cost: approx. € 1,5 m. Project Schedule Design: 2005 Construction: 2005 - 2009 Project Description • Permanent one-sided and two-sided slopes of the u-turn road in the entrance of Rapsomati tunnel Length of open cut: 314m Max. height: 25m Modulation of left open cut slopes in 1 slope with gradient 1:1 (height: width) Modulation of right open cut slopes in 2 slopes with gradient 2:1 and intermediate benches • One-sided open cut slope of the open road in the area of Open cut area view in Rapsomati tunnel exit the exit of Rapsomati tunnel Length: 60m Max. height: 37m Slope modulation in 4 open cut slopes with gradient 2:1 with intermediate benches, 4m width Geology Thin-bedded medium-bedded limestones Intercalations of clayey schists, red pelites and limestones Our Services • Detailed geotechnical design • Execution of geotechnical investigation program • Assessment of design geotechnical parameters • Geometric project design • Execution analysis of slopes stability • Technical report • Bill of Quantities, Budget Construction Details • Installation of fully grounded rockbolts in combination with Open cut typical cross section reinforced connecting beams • Installation of prestressed anchors on the slopes at the area of the exit of the Rapsomati tunnel • Surface protection of permanent slope with GEOBRUGG grids, TECCO G65 type • Construction of perimetrical drainage trenches and drainage wholes • Planting of small trees Client J/V KASTOR S.A. – ELTER S.A.

Project Highway general excavation works

Construction Cost Total cost: approx. € 1,5 m.

Project Schedule Design: 2000 - 2001 Construction: 2003 - 2005

Project Description Permanent one-sided and two-sided slopes with support measures and retaining walls, according to Installation of rock bolts and special grids for the slope the stability conditions protection against corrosion Max. length: 430m Max. height: 11m - 40m

Geology Flysch formation consisting of thick – bedded sandstones, siltstones and red pelites

Our Services Detailed geotechnical & structural design

Construction Details • Design of special rockfall protection barriers • Installation of prestressed anchors and special grids

for the protection of the slopes against corrosion Typical excavation cross section • Design of retaining walls and pile walls

Client EGNATIA ODOS S.A.

Project Excavation of permanent slopes for the high speed railway line

Construction Cost Total cost: approx. € 0,9 m.

Project Schedule Design: 2002 Construction: 2002-2003

Project Description Length: 100m Max. height: 40m

Modulation geometry: Slopes view during construction 4 slopes with gradient 3:1 and intermediate benches with 4m width

Construction Method Mechanical excavation due to the vicinity with the existing railway line

Geology • Brecciated limestones, in a seismically active area • Steep morphology with loose limestone blocks, probably unstable

Our Services • Detailed geotechnical design • Construction drawings

Construction Details • Elaboration of a special excavation method in Typical cross section distinct phases with application of rockbolts in the ground of each excavation phase • Design of rockfall barriers • Protection wall and special barriers installed to prevent rockfalls and to absorb kinetic energy, for the protection of the existing Railway Line • Design of prestressed anchors for the support of the permanent slopes

Client ALTE S.A.

Project General excavation works for the foundation of bridges

Construction Cost Total cost: approx. € 0,3 m.

Project Schedule Design: 2002 Construction: 2002

Excavated slopes in the area of the foundation of G1 Project Description bridge Modulation of slopes of height up to 15m

Geology Blocky phyllites, sandstones and limestones

Our Services Detailed geotechnical design of excavation and support

Construction Details • Installation of prestressed anchors • Installation of geobrugg TECCO grids for the protection against corrosion of the slopes and to prevent loose material movement Geobrugg TECCO type grids installation works Client AKTOR S.A.

Project Highway embankment

Construction Cost Total cost: approx. € 1,0 m.

Project Schedule Design: 2000 Construction: 2002-2005

Project Description Reinforced embankment with gabions combined with Western view of the embankment geogrids Modulation geometry: • Modulation of reinforced slopes with gradient 2:1 & 1:1 • All other slopes were modulated with gradient 1:2 Length: 110m Max. width: 90m Max. height: 50m

Geology Flysch formation consisting of thick – bedded sandstones and red pelites

Our Services • Detailed geotechnical design • Construction drawings South view of the embankment Construction Details • Construction of the embankment with use of sandstone material •Strength of geogrids 400KNm • Gabions dimensions 1m x 1m x 2m & 1m x 0,5m x 2m • Length of the reinforcement bars 20m & 25m

Client EGNATIA ODOS S.A.

Reinforced earth in the upper slope

Project Highway embankments

Construction Cost Total cost: approx. € from 0,15 to 0,6 m.

Project Schedule Design: 2001-2002 Construction: 2000-2003 G6 rock fill embankment, maximum Project Description height 50m Embankments constructed with rock fill or reinforced with geotextiles, geogrids and preconstructed elements Maximum heights: 30-70m

Geology Phyllites, travertine, sandstones

Our Services Detailed geotechnical design

Clients •AKTORS.A. • AEGEK S.A. G3 reinforced embankment, maximum height 70m

Reinforced earth embankment constructed with travertine materials and preconstructed reinforced elements, maximum height 38m

Project Highway embankment

Construction Cost Total cost: approx. € 0,6 m.

Project Schedule Design: 2001 Construction: 2002-2003

Project Description Reinforced embankment with geotextiles Modulation geometry: View of the embankment during the construction • Slopes with gradient 2:3 in the lower 25m phase •Slopes with gradient 1:1 with benches per 10m of slope height, up to the embankment crest Length: 140m Width: 50m Max. height: 70m

Geology Phyllites, sandstones, schists

Our Services • Detailed geotechnical design • Construction drawings

Downstream view of the embankment after the Construction Details completion of works • Placement of reinforced earth in the upper three slopes of the embankment • Maximum length of geotextiles 50m • Placement of geotextiles per 0.5m up to 1,0m

Client AEGEK S.A.

Upstream view of the embankment after the completion of works

Project Highway embankment

Construction Cost Total cost: approx. € 0,4 m.

Project Schedule Design: 2000 Construction: 2000 -2002

Project Description Reinforced embankment with pre-constructed elements Modulation Geometry: Slopes with gradient 2:3 Embankment view during construction Vertical slope of reinforced earth with height 10m Length: 180m Width: 30m Max height: 38m

Geology Travertine, loose soil materials

Our Services • Detailed geotechnical design • Construction drawings

Construction Details • Embankment construction with travertine materials • Use of reinforced earth of VSL type constituted of Embankment view after construction steel bars and pre-constructed concrete elements • Reinforced earth length 10m • Placement of reinforcements per 75cm

Client AKTOR S.A.

Project Highway embankment

Construction Cost Total cost: approx. € 1 m.

Project Schedule Design: 2003 Construction: 2003 -2004

Project Description Two-sided soil embankment for the replacement of a previous – failed embankment Modulation geometry: One slopewith gradient 1:3 (t(upstream section ) and View of the embankment failure with gradient 2:3 (downstream section) Length: 90m Width: 27m Max. height: 25m

Geology Travertine, peridotite, loose soil materials, groundwater flows

Our Services • Detailed geotechnical design • Final geological and hydrogeological design • Evaluation of previous failure • Design of foundation works for the new Typical cross section after the failure embankment rehabilitation • Design and support of the new embankment

Construction Details • Embankment foundation in one row of piles Ø1,00/1,30, with 16m length combined with cap beam, in the area of the failure surface • Construction of a riprap layer of thickness 1,5m in the embankment base for the drainage of the groundwater

Client AKTOR S.A.

Project Highway embankment

Construction Cost Total cost: approx. € 0,15 m.

Project Schedule Design: 2000 Construction: 2001-2002

Project Description Rock fill embankment Modulation Geometry Slopes with gradient 2:3 of maximum height 20m with intermediate bench with 4m width Length: 141m Width: 40m Max. height: 50m

Geology Alterations of gneisses and mica schists

Our Services • Detailed geotechnical design • Construction drawings

Downstream view of the embankment Client AEGEK S.A.

Project Highway embankments

Construction Cost Total cost: approx. € 1,6 m

Project Schedule Design: 2005 Construction: 2005 - 2006

Project Description • One-sided and two-sided embankments of highway Length: 380m Max. height: 12m Crown width: 31m Modulation of the embankment in 1 slopewith

gradient 2:3 (height: width) Embankment construction works • Widening of the existing embankment due to the construction of Megalopoli interchange Length: 820m Max. height: 7m Modulation of the embankment in 1 slope with gradient 2:3 (height: width)

Geology Marls and sand marls Alluvial flabellum

Our Services • Detailed geotechnical design • Geometric project design • Check of the embankment settlements and Embankment typical cross section consoldlidations • Assessment of the embankment and open cut stability • Technical description of works for the embankment construction • Construction drawings • Technical report • Bill of Quantities, Budget

Client J/V KASTOR S.A. – ELTER S.A.

Project Highway open cuts with significant failures Construction Cost Total cost: approx. € 2,4 m. Project Schedule Design: 2005 Construction: 2005 - 2006 Project Description • Demoliti on of slopesupport pililewall,whic h due to filfailure Existing failure of the open cuts with material removal inside the road traffic sidewalk outline moved inside the road traffic sidewalk outline • Design of 2 new pile walls of 80m length in combination with cap beam and wall construction at the face of the pile walls • Data piles: Φ1,2 of 11m length up to 13m • Support of the existing slope in which was indicated in progress instability Slope length: 250m Max. slopeheight: 11m • Design of support pile wall of 162m length in combination with cap beam and wall construction at the face of pile walls. • Data piles: Φ1,2 of 12m length • Rehabilitation of the existing slope’s failure and modulation of new geometry Slope length: 600m Max. slope height: 35m Modulation of new geometry of slopes with gradient 1:2 (height: width), 8m length with intermediate benches of 6m width

Geology Support pile wall construction Marls, sand marls Clayey scree Our Services • Detailed geotechnical design • Geometrical design of rehabilitation works • DiDesignand dimens ion ing of support and prottitection measures • Execution of stability analyses • Construction drawings • Bill of Quantities, Budget Construction Details • Installation of rip rap behind the pile walls and the lower open cut bench • Construction of drainage trenches over the slopes and wholes crown • Installation of 3-D geogrid against corrosion at the slopes surface, in combination with slopes planting Client J/V KASTOR S.A. – ELTER S.A.

Project Jet grouting diaphragm wall, for the reduction of water inflows in order to construct the foundations of M2 to M6 piers of T10 bridge at Metsovitikos River

Construction Cost Total cost: approx.€ 6 m.

Project Schedule Design: 2007 Construction: 2007-2008

Project Description • Jet grouting dhdiaphragmatic wall with secant ground piles • Central diaphragm wall, with 3 rows ground piles • 4 additional diaphragm walls at the foundation areas of the piers •Diameter:Ø 80, Length 10m-20m • Total walls length: 365m

Geology • Riverbed deposits (sands, breccia argillaceous materials) • Conglomerates with high permeability • High river flood discharge • High groundwater table

Our Services Detailed geotechnical design

Construction Details Jet grouting construction stages • Dam consttitruction for the arrangement of theribdiverbed • Rip - rap construction for the protection of the main diaphragm wall

Client AKTOR S.A.

Project Technical & earthworks in a 60km road

Construction Cost Total cost: approx. € 4 m.

Project Schedule Design: 2005 Construction: 2005 – today Retaining wall typical cross section Project Description • Retaining walls • Pilewalls • Reinforced embankments • Stream bed modulations with gabions • Slope support

Our Services • Audit of existing designs • Elaboration of construction method statements

Clients • AKTOR S.A. • MOCHLOS S.A.

Embankment typical cross section

Project 2-floor underground parking facilities in 2-floor store building

Construction Cost Total cost: approx. € 0,3 m.

Project Schedule Design: 2005 Construction: 2005 - 2006

Project Description Length: 65m Width: 40m Depth: 8m

CttiConstruction MthdMethod Pile anchored walls Modulation of excavation slopes with gradient 1:1 in Building excavations plan view 1 or 2 benches

Geology Soil materials (clay, clayey sand) Clayey marl Aquifer

Our Services • Detailed design • Construction drawings of the retaining structures

Construction Details • Construction of 3 pile walls: 15m up to 29m length with reinforced concrete piles Φ0,8 of total Excavation section length 6-8m, in combination with cap beams of height 1,1m and width 0,9m • Installation of shotcrete over the piles surface • Construction of drainage wholes • Construction of 6 pumping shafts with cross section Φ800

Client ΑΚΤΟR S.A.

Project Underground parking facilities in nine-floor building

Construction Cost Total cost: approx. € 15 m.

Project Schedule Design: 2003 Construction: 2003-2004

Project Description Width: 37m Total length: 100m Depth: 28m Construction Method Retaining structure with pile walls and prestressed anchors

Geology Man-made deposits, soils, Athenian schist

Our Services Detailed geotechnical design Construction sire NE view Client ELLINIKI TECHNODOMIKI S.A.

Construction sire north view

Project 3-floor underground parking facilities in a 4-floor building

Construction Cost Total cost: approx. € 1,5 m.

Project Schedule Design: 2005 Construction: 2005

Project Description Width: 48m Length: 53m DthDepth: 13m Building model

Construction Method Pile anchored wall

Geology Man made deposits, soil materials

Our Services • Detailed design • Construction drawings of the retaining structures

Construction Details • Retaining structures with steel piles Ø600 consisted of pair of steel beams and reinforced concrete piles Ø800 • Placement of 2 to 3 rows of prestressed anchors NE construction view with length 10m to 21m with 1 or 2 tendons Ø0,6΄΄, connected with horizontal beams UPN 200

Client AKTOR S.A.

Project Highway hydraulic work

Construction Cost Total cost: approx. € 0,21 m.

Project Schedule Design: 2003 Construction: 2003 - 2004

Project Description Rectangular culvert Length: 79m (closed cross section) 37m (open cross section) Height: 2,0m Width: 2,5m

Geology Limestones Seismically active area

Our Services Detailed geotechnical & structural design

Client AKTOR S.A. Open and closed type culvert typical cross sections

Project Highway hydraulic work

Construction Cost Total cost: approx. € 0,4 m.

Project Schedule Design: 2003 Construction: 2003 - 2004

Project Description Rectangular culvert Culvert plan view Upstream section: Length: 221m (closed cross section) 11m (open cross section) Height: 2,5m Width: 2,0m Downstream section: Length: 30m (closed cross section) 45m (open cross section) Height: 2,5m-7,6m Width: 2,0m

Geology Limestones Seismically active area

Our Services Culvert longitudinal section Detailed geotechnical & structural design

Client AKTOR S.A.

4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr