Tunnels & Earthworks

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 Highway Tunnel Τwin Bore Highway Tunnel T1 - Demir Kapija-Smokvica Motorway Section of European Corridor 10 & Part of the National Road M-1 (E-75), Skopje

Project Full face design of the twin bore highway tunnel T1 with excavation and primary support classes (E&S) for the tunnel’s main body, the cross passages and the lay-bys.

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

Project Schedule Design: 2013 Construction: 2012 - 2015

Project Description • North bore length: ~1275m • South bore: length ~1214m • E&S classes for the main tunnel, the cross passages (vehicular and pedestrian) and the lay-by • Main tunnel’s typical excavation cross section: 75-81m2 • Method of tunnel excavation: NATM – drill & smooth blasting – heavy General view of tunnel’s T1 south entrance portal mechanical means • Maximum overburden: 215m

Geology JiJurassic Limestones massive to well bdddbedded,modlderately weathdhered and highly fractured at the fault zones, Basalts slightly weathered and Diabases-Spilites slightly to moderately weathered

Our Services • Geotechnical & Structural Design of tunnel T1 • Geological – geotechnical interpretation and evaluation • Determination of the appropriate support classes, establishment of the application criteria for each category and description of the construction stages sequence • Calculation analysis for the support measures adequacy per class and assessment of the stress-state stability conditions using 2D and 3D simulation models • Elaboration of technical reports, detailed construction drawings, calculation notes, instrumentation and monitoring program • Consultancy Services

Client AKTOR S.A.

Tunnel’s excavation face and underground stretch with the primary support measures

Project Water transfer hydraulic tunnels for electric power production.

Construction Cost Total project’s cost: approx. € 7 m.

Project Schedule Design: 2013 - 2014 Tunnel ‘s A entrance plan view Construction: 2013 - 2014

Project Description Pressurized Hydraulic Tunnel A, for water transfer from Rrapunit river dam to the electric power production station. Hydraulic Tunnel B, for the diversion of the Qarrishte river runoff to the dam basin.

Tunnel A total length: 2.310m Tunnel B total length: 200m Tunnels effective cross section: 21,00m2 Tunnel ‘s A entrance longitudinal section Excavation Method ΝΑΤΜ – Drilling and blasting – mechanical means

Geology Scree, Molasse, Ophiolites, Thrust zone of Ophiolites on the Molasse

Our Services • Geological – geotechnical evaluation • Detailed geotechnical and structural design

CiConstruction dildetails Tunnel’s entrance intermediate access • Skewed Entrance Portal of Tunnel A • Formation of two (2) additional excavation faces for the main tunnel (Tunnel A) through an intermediate access tunnel

Client AKTOR SHOQERI ANONIME TEKNIKE

Front view of tunnel A exit

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 Tender Designs of Major Infrastructure Highway Projects Twin Bore Highway Tunnels of the Cross Israel Northern Highway, Sections 3 & 7 Israel

Project Cross Israel Northern Highway, Twin Bore 3 – Lane Tunnels of Road Sections 3 & 7

Construction Cost Total Cost: approx. € 80 m.

Project Schedule Tender Design: 2012-2013 Typical tunnels cross section Construction: due to commence in 2014

Project Description Twin Bore 3-Lane Highway Tunnels (Yokneam, Rekhasim & Ibtin) Mined sections total length: 9.200m Excavation cross section: 130m2 -190m2 Effecti ve cross section: 58m2 (3 x 3.70m) Pedestrian & vehicle cross passages cross section: 36m2

Composite Shotcrete Lining C30/37 Temporary support: outer shotcrete Permanent lining: sprayed waterproof membrane and steel reinforced inner shotcrete permanent lining

Excavation Method NATM – Mechanical excavation Due to strict vibration limits on the adjoining oil & gas pipelines D&B is not permitted

Geology • Limestones, chalk, dolomites, marls • Seismically active area (Carmel Fault), zones with shattered geomaterials • Karstic Features • Overburden heights: 3m – 100m

Our Services • Appraisal of the tender Basic Solution • Preparation of alternative and cost effective tunnel E&S cross sections as well as BoQ’s for the tender dossier on behalf of AKTOR S.A. & SBI Group • Tender design and preparation of the technical offer

Client AKTOR S.A. (Greece) Excavation typical cross section SBI Group (Israel)

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 Tunnels Engineering Services for Tunnels T2, T3, T4 & T5 on Kiratpur - Ner Chowk section of NH21 in the states of Punjab and Himachal Pradesh ((),HP), Concession project India Project Geological mapping & other site services for the concession project: "Tunnels T2, T3, T4, T5 on Kiratpur - Ner Chowk section of NH21 in the states of Punjab and Himachal Pradesh (HP), India

Project Description • Single tube two lane bi-directional highway tunnel T2 650m, excav. cross section ~ 105m2 • Single tube two lane bi-directional highway tunnel T3 400m, excav. cross section ~105m2 • Single tube two lane bi-directional highway tunnel T4 1410m, excav. cross section ~105m2 T2 tunnel – Location of portal P1 • Single tube two lane bi-directional highway tunnel T5 860m, excav. cross section ~105m2

Excavation Method NATM – Mechanical excavation

Geology Lower Siwalik formation of the frontal folded belt of the Himalaya consisting of alterations of sandstones & siltstones, poor to very poor encountered geology, shear zones Max. overburden ranging from 70m to 140m

Our Services • Review of the available reports and drawings • Geological mapping of the tunnels alignment (T2, T3, T4, T5) for a Shear zone in the area of the west portal P1 of tunnel T4 corridor of 100m around the centre line of alignment • Establishment of the geotechnical investigations program • Preliminary gggeological model of tunnels as per NATM classification • Contribution to the highway alignment refinement • On site consultancy services • The designs and services provided in common with INDUS CONSULTRANTS Pvt. Ltd, India

Client IL&FS TRANSPORTATION LTD, INDIA

Geological plan view of tunnel T3

Highway tunnel View of tunnel’s north bore entrance portal (to Tirana)

Construction Cost Total ppjroject’s cost: approx. € 70 m.

Project Schedule Design: 2011 Construction: 2011 -2012

Project Description Twin bore highway tunnel Length of south bound: 2,580.3 m Length of north bound: 2,320.6 m Excavation cross section: 90 – 120 m2 Cross passages (total length): 149.53 m Underground part of tunnel Method of tunnel excavation NATM – Drilling & blasting - mechanical means

Final Lining Reinforced concrete C25/30

Geology Molassic formations consisting of sandstone and siltstone alterations, thick-bedded sandstones, siltstones, rare interlayers of conglomerates Max. overburden: 210m

Our Services Tunnel’s underground face • Geological – geotechnical interpretation and evaluation studies for tunnel main body & tunnel’s portals • Detailed geotechnical & structural design of tunnel portals’ • Detailed geotechnical & structural design of the tunnel • Detailed hydraulic design • Designer on site services

Construction Details • Use of lattice girders • “Opened & Closed ring” solutions • Artificial reinforced concrete cover structure (C20/25) for tunnel construction in gully area

Client Artificial concrete cover structure at gully area AKTOR SHOQERI ANONIME TEKNIKE

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 Jaipur, India Metro tunnels Tender Predesigns & Detailed Designs of two (2) TBM Metro Tunnels on East-West Corridor of Jaipur Metro Project (Stage 1B) at Jaipur, Rajasthan, India.

Project Tender Predesigns & Detailed Design of two (2) TBM Tunnels between Chandpole and Badi Chouper of the Jaipur Metro project on East-West Corridor of Jaipur Metro (Stage 1B) at Jaipur, Rajasthan, India. Construction Cost Total cost: ~50,000,000 US $ Project Schedule Design - Construction: 2013 ~ 2016 Project Description Two (2) single track TBM tunnels Total length: ~ 2.8km Cross section: 35m2 Effect. cross section: 26m2

Construction Method Chandpole Gate Surface settlements due to TBMs Two (2) single track TBM tunnels: excavation Mechanical excavation with EPB - TBM (Earth Pressure Balance – Tunnel Boring Machine) Final Lining • Concrete M50 for TBM tunnels’ segments • Reinforcement Fe500D Geology Sand, Silty Sand & Silty Sand with Gravels ObdOverburden for TBM: 6~12m. Our Services • Preliminary Design Submissions Starting up frame • Geotechnical Interpretation Report for the whole project • Definitive Tunnel Segment Design • Definitive Design of Sump Pit & Tunnel Drainage, design of temporary works including reaction frame • Definitive Design of connection details with launching & retrieval shaft, Star ting-up frame desig in &TBMb& TBM brea kthk through h me thdlthodology • Assessment and protection of Existing Building and Utilities • Ground settlement contours within the influence zone of the tunnelling and stations’ works • Instrumentation systems for monitoring settlements of the ground and adjacent structures • Calculation of TBM required support pressure • Risk Assessment of buildings, structures and utilities due to tunnelling works Temporary tunnel support frame for • The desiggpns were provided in common with INDUS CONSULTRANTS Pvt. Ltd. India cross-passage construction Client CEC INT’L CORP INDIA PVT. LTD.

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 Metro Stations Tender Predesigns & Detailed Designs of two (2) UG Metro Stations, Two (2) C&Cs and Two (2) Shafts on East-West Corridor of Jaipur Metro Project (Stage 1B) at JiJaipur, RjRajast han, IdiIndia Project Tender Predesigns & Detailed Design of two (2) Underground Metro Stations, Choti Chouper and Badi Chouper, by Top Down Method, two (2) C&Cs and two (2) shafts for the Jaipur Metro project on East-West Corridor of Jaipur Metro (Stage 1B) at Jaipur, Rajasthan, India. Construction Cost Total cost: ~50,000,000 US $ Project Schedule Design - Construction: 2013 ~ 2016 Project Description

7Choti Chouper underground station Length: ~ 233m, Width:22.65m ~ 63.05m, Depth: ~20.00m Five (5) final levels: Foundation level / Platform level / Concourse level / TV shaft level/Roof level Badi Chouper Station Lengg,th: ~ 233m, Width:27.95m ~ 68.35m, Depth: ~20.00m Five (5) final levels: Foundation level / Platform level / Concourse level / TV shaft level / Roof level C&Cs Length: ~ 269m, Width:12.6m, Depth:~18.00m Length: ~ 110m, Width: 12.6 ~23.6m, Depth:~18.00m Shafts Choti Chouper UG Station 3D model Length: ~ 25.6m, Width: 24.6m, Depth:~18.00m Length: ~ 25.6m, Width: 24.6m, Depth:~12.00m CttiConstruction MthdMethod • Choti & Badi Chouper Stations: Construction by Top Down method with Diaphragm Walls • C&C and shafts with cut & cover method (piles and struts) Final Lining Concrete M35 for the structures, Reinforcement Fe500D Geology Sand, Silty Sand & Silty Sand with Gravels Our Services • Preliminary Design Submissions

• Geotechnical Interpretation Report for the whole project Badi Chouper • Definitive Design of Cut and Covers, Shafts, design of temporary works UG Station 3D model • Ground settlement contours within the influence zone of the stations’ works • Design of Secondary Structures i.e. track plinth and track concrete, emergency walkway • Structural Design of the Stations with 3D analysis model • Structural design of entry & exit structures, tunnel ventilation shafts, supply & exhaust vent shafts and C&C • Formworks (plan views and cross sections) and reinforcement reinforcement drawings for the stations, the entrances, the C&C and the shafts • Details for waterproofing of various structural elements • The designs were provided in common with INDUS CONSULTRANTS Pvt. Ltd. India Client CEC INT’L CORP INDIA PVT. LTD.

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 Metro Stations Detailed Design of one (1) UG Metro Station and of one (1) ancillary building for Contract No-CC 23 of Delhi MRTS Project of Phase-III, Delhi Metro Corporation N. Delhi, India Project Detailed Structural Design of one (1) Underground Metro Station and of one (1) Ancillary Building for Contract No-CC 23: Design and Construction of Tunnel between Hauz Khas Station and Kalkaji Station by Shield TBM, Tunnel near Chirag Delhi & Kalkaji Stations and Underground Ramp beyond Kalkaji Station by Cut & Cover Method, Underground Metro Stations at Panchsheel Park, Chirag Delhi, G.K.Enclave-1,Nehru Place & Kalkaji by Cut & Cover Method on Janakpuri West-Botanical Garden Corridor of Delhi MRTS Project of Phase-III, Delhi Metro Corporation, India Construction Cost Total cost: approx. 25 m. € Project Schedule Design - Construction: 2013 ~ 2015 Project Description Greater Kailash Enclave – 1 underground station Length: ~ 267m, Width:23.20m ~ 30m, Depth: 15.70 ~17.80m Four (4) final levels: Foundation level / Platform level / Concourse level / Roof level One ancillary building Plan view dimensions: 27m x 23m Height: ~13m Construction Method

• Station: Construction by Top Down method with Diaphragm Walls Greater Kailash Enclave – 1 Station 3D model • Cross passages: Conventional tunnelling method (NATM) • Ancillary Building – Entrances of station: Cut & Cover method Final Lining Concrete M40 for the station’s permanent structures, Reinforcement Fe500D Concrete M35 for ancillary building, Reinforcement Fe500D Geology Stiff silt & very stiff silt

Our Services Greater Kailash Enclave – 1 Station entrance 3D model • Structural Design of the Station with 3D analysis models for the permanent situation and for each discrete part of the station according to the construction sequence • Assessment of ground settlements within influence zone of station work • Definitive Design of Cross passages, Sump Pit & Tunnel Drainage • Structural design of entry & exit structures, tunnel ventilation shafts, supply & exhaust vent shafts and ancillary building at the area of the station • Formworks (plan views and cross sections) and reinforcement drawings for the station, the entrances and the ancillary building and details for waterproofing of various structural elements • The d esig ins were provid ed i n common wi th INDUS CONSULTRANTS Pvt. LdLtd. In dia Client Ancillary Building 3D model FEMC-PRATIBHA JV

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 Delhi Metro Tunnels (TBM & NATM Tunnels) “Pre-bid & Detailed Design Engineering Services for Tunnel Portion by TBM & NATM” for Contract No-CC 23 of Delhi MRTS Project of Phase-III, Delhi Metro Corporation IdiIndia Project “Prebid and detailed design engineering services for Tunnel Portion by TBM & NATM” for Contract No-CC 23: Design and Construction of Tunnel between Hauz Khas Station and Kalkaji Station by Shield TBM, Tunnel near Chirag Delhi & Kalkaji Stations and Underground Ramp beyond Kalkaji Station by Cut & Cover Method, Underground Metro Stations at Panchsheel Park, Chirag Delhi, G.K.Enclave-1,Nehru Place & Kalkaji by Cut & Cover Methdhod on Janakkpuri West-Botanical Garden Corridor of DelhiMRTSProject of Phase-III, Delhi Metro Corporation, India Typical view of Earth Pressure Balance Shield Construction Cost Total cost : approx. 185 m. € Project Schedule Design: 2012 - 2013 Construction: 2013 - Project Description Prebid and detailed designengineering for DMRC package CC-23 for FEMC – PRATIIBHA JV 8.2 km Metro tunnels out of which: • 8km TBM tunnels, excav. cross section: 35m2 & effective cross section: 26 m2 • 0.2km NATM tunnels, excav. cross section: 90m2 & effective cross section: 60m2 Excavation Method • Mechanical excavation with four (4) EPB and Mixed Shield- TBMs • NATM – Conventional excavation Typical view of Cutter Head Geology Delhi Silt & Quartzite Our Services • Evaluation of the geological - geotechnical investigation campaign • TBM type selection • Calculations of TBM support pressure • Calculations of surface settlements • Initial inspection of existing critical structures above the tunnel’s centreline • Designs for the tunnel’s segments including segment lining details • Designs for the excavation & temporary support of NATM Tunnels and cross passages • Designs for the final lining of NATM Tunnels & cross passages • Special consultancy services for the monitoring instrumentation • The designs were provided in common with INDUS CONSULTRANTS Pvt. Ltd., India Final lining

Reinforced concrete C40/50 (M50), 500D, for TBM tunnels Typical view of the FE-model with 15m Reinforced concrete C30/37 (M35), 500D, for NATM tunnels overburden and the segmental lining Client FEMC - PRATIBHA JV, INDIA

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 Delhi Metro Tunnels “Pre-bid Engineering Services for TBM Metro Tunnels” for the project No-CC 34 of Delhi MRTS Project of Phase-III, Delhi Metro Corpp,oration, India

Project Prebid engineering consultancy services for the TBM tunnels of the project: Design and Construction of Tunnels from Ch. 785.912 near Janakpuri West underground station to Palam Underground Metro station (excluding) (Ch. (+)4591.630) by Shield TBM, Janakpuri West, Dabri Mor and Dashrath Puri underground metro Stations by Cut & Cover Method and works in connection with interchange facilities between existing eldlevated Metro station and proposed unddderground metro station at Janakpuri West on Janakpuri West– Kalindi Kunj Corridor under Delhi MRTS Project of Phase-III / Contract Nο: CC-34 (UG-5), Delhi Metro Corporation, India Calculated surface settlements for overburden 15m, Construction Cost support pressure 1.5bar & Ko=1.0 Total cost: approx. 145 m. € Project Schedule Design: 2012 Construction: 2013 – Project Description Prebid engineering for DMRC package CC-34 / Delhi Metro Phase III, for JV CEC-CICI for 8.5 km ΤΒΜ Metro tunnels with excav. cross section 35m2 and effective cross section: 26m2 Excavation Method Mechanical excavation with EPB - TBM (Earth Pressure Balance - Tunnel Boring Machine) Geology Typical soil profile of Delhi Silt formation Delhi Silt Our Services • Evaluation of the geological - geotechnical investigation campaign • TBM type selection • Calculations of TBM support pressure • Calculations of surface settlements • Initial inspection of existing critical structures above the tunnel’ s centreline • Designs for the tunnel’s segments including segment lining details • Designs for the excavation & temporary support of NATM Tunnels and cross passages • Design for the final lining of NATM cross passages • Special consultancy services for the monitoring instrumentation • The designs were provided in common with INDUS CONSULTRANTS Pvt. Ltd. India Final lining Reinforced concrete C40/50 (M50), 500D Client JV CEC-CICI, INDIA Geological map of Delhi with CC34 alignment indication

Project Doha Metro Golden Line underground tunnels & cross passages Project Budget Total Cost: approx. € 0,5 m. Project Schedule Tender Design: 2012 Construction: 2013 - 2018 Project Description 14 twin bore tunnels and 1 single bore tunnel (TBM) in urban environment Total length: approx. 40km Cross section: 39.6m2 Typical view of the FE-model and the segmental lining Effective cross section: 19.4m2 65 Pedestrian Cross Passages (NATM) in urban environment Total length: approx. 600m Cross section: 15.7m2 - 22m2 Effective cross section: ~8.0m2 Excavation Method • TBM tunnels: Mechanical excavation with EPB - TBM ( Earth Pressure Balance - Tunnel Boring Machine) • Cross passages: Conventional tunnelling method (NATM) Final Lining • Concrete C40/50 for segments (30cm thickness) • Concrete C30/37 for cross passages Geology Earth Pressure Balance - Tunnel Boring Machine (EPB - TBM) • Weathered limestone, limestone, shale, chalky limestone and interlayers of siltstone • Karst and sink holes/cavities • 2 aquifers (unconfined & confined), high water aggressiveness • Overburden: 15m - 30m Our Services • Geotechnical & structural tender predesigns and drawings • The designs were elaborated in common with EDR GmbH, Munich Construction Details • Special grouting techniques for water isolation • Concrete mix for 120 years durability • DblDoublewaterproofing gasket wihith hdhydrophili hilicseal Client

YAPI MERKEZI – STFA - AKTOR JOINT VENTURE Cross passage excavation geometry at pumping shaft

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 Metro Stations Doha Metro Golden Line Underground Stations Tender Predesigns, Doha, Qatar Project Tender ppgredesigns for 14 UG Stations, 4 Switchboxes & 2 Emerggyency Exits for the Golden Line of Doha Metro Project Budget Total cost: approx. € 1.5 b. Project Schedule Tender Design: 2012 Construction: 2013 – 2018 Project Description • 14 UG Stations((gincluding ventilation shafts): 13 UG stations each with: Length: ~177m / Width: ~27m / Depth: ~25m to ~ 45m / 4 final levels: Foundation level / Platform level / Concourse level / Roof level 1 UG station with: Length: ~355m / Width: ~48m / Depth: ~45m Station Structural Analysis Model 6 final levels: Foundation level / Platform level / Transfer level / Intermediate level / Concourse level / Roof level 15 Pedestrian/Ventilation Tunnels: Total length: 650m / Cross section: 73-121m2 / Effective cross section: 38-60m2 • 4 Switchboxes: Length: ~120m & ~190m / Width: ~25m & ~45m / Depth: ~20m & ~28m / 2 final levels: Foundation level /Roof level • 2 Emergency exits shafts: Length: 12m / Width: ~6m / Depth: ~28m Construction Method • Excavation & reinstatement (Cut & Cover) for stations, switchboxes & shafts • Open excavation retaining structures: reinforced concrete diaphragm walls, prestressed anchors, struts for stations, switchboxes & shafts • Stations pedestrian/ventilation tunnels: excavated with conventional

means (“barrel vault” method) Underground tunnel construction with conventional • Stations/switchbox bridge structures: secant concrete piles with d: means Φ100/Φ120 and l: 15m ~ 19m, prestressed anchors, precast beams, diaphragm walls with l: 16km, d: ~12m to 46m and w: 0.80m/1.00m, multi levels of anchors Final Lining Reinforced concrete C30/37 Geology Weathered limestone, limestone, shale, chalky limestone and interlayers of siltstone, 2 aquifers (unconfined & confined), high water aggressiveness Our Services • Geotechnical & structural tender predesigns and drawings • The designs were elaborated in common with EDR GmbH, Munich Construction Details Excavation & temporary support typical cross section with the applilica tion o f diaph hragm wa lls an d prestdtressed anchors • Durability requirements for 120 years • Special dewatering systems • Appropriate traffic deviations Client YAPI MERKEZI – STFA - AKTOR 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 Metro Stations Doha Metro Major (“FLAGSHIP”) UG Stations Tender Predesigns, Doha, Qatar Project Mshaireb UG Metro Station & Education City UG Metro Station in Doha city Construction Budget Total Cost: approx. € 1 Β. Project Schedule Tender Design: 2012 Construction: 2013 – 2018 Project Description Mshaireb UG Station ((jmajor interchange station in the centre of Doha City) Length: 177m (Main Station) Width: ~33m (Main Station) Depth: ~38m 6 final levels: Foundation level/2 Platform levels /Intermediate level/Concourse level/Roof level Passenger tunnel of ~275m long Education City UG Station (dual operation Station) Length: ~177m (Main Station) Width: ~65m Depth: ~23m Mshaireb Station Analysis Model 4 final levels: Foundation level/Platform level/ Concourse level/Roof level 2 switchboxes of 25m span and 81m and 155m long Passenger tunnel 145m long Construction Method • Excavation & Reinstatement (Cut & Cover) • Open excavation retaining structures: reinforced concrete diaphragm walls, prestressed anchors, struts, precast beams • Mshaireb Station: Pedestrian tunnel excavated with conventional means / Temporary steel bridge / Bridge Final Lining Reinforced concrete C30/37 Geology Weathered limestone, limestone, shale, chalky limestone and interlayers of siltstone, 2 aquifers (unconfined & confined) High water aggressiveness Education City Station Analysis Model Our Services • Geotechnical & structural tender predesigns and drawings • The designs were elaborated in common with the EDR Gmbh, Munich Construction Details • 120 years durability • Special dewatering systems • Diaphragm walls l: 1,5m d: ~14m to 28m and w: 0.64/0.80 • Multi levels of anchors • Appropriate traffic deviations Client YAPI MERKEZI – STFA - AKTOR JOINT VENTURE

Project Geotechnical interpretation and evaluation design of a waste Mechanical and Biological Treatment (MBT) plant for processing waste and producing Refuse Derived Fuel, at Sadinata site, Sofia, Bulgaria.

Construction Cost Total cost: approx. € 80m.

Project Schedule Design: 2013 - 2014 Construction: 2014 -

Project Description Design ground profiles application areas Geotechnical interpretation and evaluation design for the fdtifoundation of the bu ildingsand reltlevant faciliti es of the SfiSofia Municipality Waste Mechanical and Biological Treatment (MBT) plant, located in an area of approx. 107,000m2 in Sadinata, Sofia.

Geology Deluvial-proluvial Quaternary and Pliocene sediments consisting mainly of clay and gravel. Water table anticipated near the ground surface.

TilTypical geot thilechnical cross-section Our Services • Preliminary geotechnical interpretation and evaluation • Establishment of the geotechnical site investigation campaign • Geological and geotechnical interpretation, hydrogeological assessment, evaluation of the geotechnical conditions and determination of the geotechnical units • Elaboration of typical geotechnical cross sections • Determination of the geotechnical profiles • Identification of the critical areas with respect to the geotechnical characteristics of the prevailing formations • Determination of the geotechnical parameters required for the foundation for the buildings and the relevant facilities of the MBT plant Geotechnical simulation model Client for temporary cuts AKTOR S.A. – HELEKTOR S.A. 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 Waste treatment projects Construction and Operation of a household waste treatment plant at Levashovo area –St. Petersburg PPP ppjroject Russia

Project Preliminary geotechnical assessment and design of a waste treatment plant at Levashovo area , St. Petersburg, Russia

Construction Cost Total cost: approx. € 300m.

Project Schedule Design: 2012- 2014 Construction: 2013 -

Project Description Preliminary geotechnical assessment and design of the various structural units of a waste treatment plant, located in an area of approx. 100,000m2 in Levashovo, St. Petersburg

Application areas of Geology design ground profiles Mainly clays, loams and sandy loams. Water table anticipated near the ground surface, swamps presence in the broader area

Our Services • Geotechnical evaluation and interpretation • Geotechnical estimations for the foundation of the main facilities • Geotechnical assessment for the required temporary excavations of the main facilities • Geotechnical proposals for mitigating buoyancy issues • Supplementary geotechnical campaign proposal • Initial identification of issues that could overburden the projects budget (dewatering, soil frost heave, soil swelling, contamination etc.) Calculated flow net Client Joint Partnership HELEKTOR S.A. – 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 Dams – Hydraulic Works Recharge Dams and flood protection works Northern Emirates, United Arab Emirates Project Update of studies and designs for new recharge dams and barriers, execution of safety audit of existing dams, design of new recharge structures and other flood protection works Construction Cost Total cost: approx. € 100 m. Project Schedule Design: 2011 Construction: 2012 - 2015 Project Description • Design and review of approx. 120 recharge and energy dissipation structures, flood protection and water diversion works, in various locations • Safety audit of existing Ham Dam upstream of Fujairah City and Bih Dam upstream Ras Al Khaimah City • Dams’ catchment areas: 0.5km2 – 105km2 Existing Ham Dam in Fujairah City view • Dams’ reservoir volumes: 2,500m3 – 243,000m3 • Dams’ crest lengths: 10m – 2,800m • Dams’ heights (wadi bed – dam crest): 2.5m – 18m • Types of Dams: Concrete gravity dams Embankment dams Gabion drop structures • Approximately 20km of flood protection channels • Erosion and slope protection works in wadies • Energy dissipation and sediment retention structures • Other retaining works for the protection of farms and houses in the reservoir area of the recharge dams Geology Gravely alluvium, sandy-gravely old wadi and terrestrial terrace deposits, igneous rocks of ophiolitic complex (harzburgites, peridotites, gabbros), metamorphic schists, cherts, limestones, claystones, siltstones Our Services • Study, review and evaluation of existing studies and designs • Assessment and evaluation of historic storms in the wider Arabic Peninsula region • Extensive reconnaissance of each dam site to establish suitability • Hydrologic and hydraulic assessment and evaluation of each site • Geological, hydrogeological and geotechnical assessment of each dam site • Design of the required technical solutions, including the relevant hydrologic, Embankment dams view hydraulic, structural and geotechnical calculations • Elaboration of tender documents (BoQ’s, technical specifications, construction cost overview) • Execution of preliminary designs, final designs and construction drawings Construction Details • Concrete gravity dams with upstream and downstream slope of 1:1 (V:H) in order to sustain the greater than hydrostatic force applied in the dams’ body • Ogee and stair shaped spilling section for concrete dams • Embankment dams with upstream slope of 1:2 (V:H) and downstream slope of 1:4 (V:H) • Rock armor protection in the downstream slope of embankment dams • Geomembrane in the upstream slope of embankment dams and gabion drop structures to prevent piping • Bottom outlets provided in all recharge structures Gabion drop structure view Client Consultant HSS – United Arab Emirates

Project Hydraulic tunnel

Project Schedule Design: 2003 Construction: 2003-2004

Project Description Hydraulic tunnel passing through the Andes Length: 25000m Cross section: 30m2

Method of tunnel excavation Yacambu – Quibor tunnel NATM – Mechanical excavation, drilling and blasting

Final Lining Reinforced shotcrete

Geology Sandstones, phyllites and limestones Squeezing conditions Max. overburden: 1200m

Our Services • Detailed design of final lining, in specific sections of the tunnel • Designs jointly elaborated with Dr Evert Hoek Underground excavation face view

Construction Details Steel sets with sliding joints in order to confront severe squeezing problems

Client SISTEMA HIDRAULICO YACAMBU – QUIBOR S.A.

Entrance portal

Project Services and Technical Assistance for the financing of high priority flood protection measures from the Cohesion Fund of the European Union

Construction Cost EtiEstima tdted ttltotal cost:approx. € 100 m.

Project Schedule Design: 2004 - 2005 Construction: The works are under tender evaluation Bratislava view during 2002 floods Project Description Design of flood protection measures in the urban areas of Bratislava, Banska, Bystrica & Presov, in the frame of financing procedures from E.U.

Bratislava: Design of levees and movable elements Banska Bystrica: Design of hydraulic flood diversion tunnel and a diversion weir Presov: Design of levees and riverbed modulation

Our Services • Feasibility studies • Environmental impact assessment studies

• Elaboration of the applications for financing from the Banska Bystrica view during 1974 floods Cohesion Fund of the EU • Tender documents • Land permit studies • Services jointly provided by OMIKRON KAPPA CONSULTING & EDR GmbH, Munich

Client Slovak Water Management Enterprise (SVP)

Presov view during 2003 floods

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

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 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)

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 3 in Tirana-Elbasan Road (Krabbe Tunnel Exit Km 15.2 till Elbasan city Km 27) / FIDIC Conditions of Contract, 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 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

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