Newsletter - Q2, 2020 TERRATEC MARKS ANOTHER MAJOR MILESTONE IN BANGKOK TERRATEC marks its latest milestone on the Orange Line metro project, in Bangkok, Thailand, with the breakthrough of the Westbound running tunnel on Contract E3. ecently, TERRATEC joined breakthrough on Contract E3 westwards from the Khlong Rworkers and officials in took place a full month ahead Ban Ma station box on January celebrating the breakthrough of schedule putting the project 12, 2019, and quickly got up of the 6.39m diameter S70 EPB on a good footing for the to speed following its initial machine by contractor Italian- upcoming Eastbound running drive. By late-March, the TBM Thai Development PCL (ITD) tunnel drive. was achieving progress rates on one of three underground of up to 18 rings per day and civil works contracts for the Contract E3, which was had already undertaken its first first 23km-long (East Section) awarded to ITD in May 2017, intermediate breakthrough. July phase of the Mass Rapid totals over 6km of TBM driven 2019 marked the TBM’s best Transit Authority of Thailand’s tunnel and three underground month of progress, achieving (MRTA) Orange Line Project. stations, extending from Hua a total advance of 663.4m and Mak to Khlong Ban Ma. The a best day’s performance of The Westbound running tunnel S70 machine began mining 40.6m. Newsletter - Q2, 2020 Newsletter - Q2, 2020 The TERRATEC S70 TBM was Manager. “The only remaining areas of flowing sands and high Line (East) contract are style to our own and because When complete, in 2023, designed to tackle the variable challenge was obstruction groundwater pressure. expected to last approximately of this we consider our the Orange Line will provide soft ground geology of the cutting. The TBM had to cut two years and are being partnership with them as more a vital transportation link city – which ranges from soft through 10 diaphragm wall As the machine progresses assisted at all times by of an ‘Alliance’ than that of from Bangkok’s city centre and medium to stiff and very panels during break-ins and along the alignment, it has TERRATEC’s highly-experienced the traditional contractor-TBM to districts in the east, stiff clays, with lenses of dense break-outs with only two been installing a precast Field Service staff – who’s manufacturer relationship.” reducing traffic congestion and sand and the potential for high cutterhead interventions.” concrete segmental lining quality after sales support paving the way for improved pressure groundwater inflows consisting of five x 1200mm service has created very loyal The S70 TBM is now being accessibility, economic growth – as well as the need to mine In order to handle these wide Universal style segments client-base in Thailand – to prepared for Contract E3’s and new residential and through numerous diaphragm challenging conditions, the plus key, with an internal ensure optimum performance 3.3km long Eastbound running commercial opportunities along wall shafts and, potentially, TBM’s soft ground cutterhead diameter of 5.7m. These are and successful project tunnel drive and is currently the alignment. concrete piles. features a spoke style and being produced by ITD at the completion. expected to relaunch sometime the addition of back-loading same factory used for segment next month (April 2020). TERRATEC has delivered “Due to extensive project knife bits to assist break-in manufacture during its MRT “We have worked closely seven TBMs to Thai projects planning we were well and break-out of the shafts. In Blue Line underground works with TERRATEC since 2012, Bangkok’s new Orange in recent years (representing prepared for the 3.3km long addition, the machine is fitted contract five years ago, which when we won our MRT Blue Line will eventually total almost every machine currently drive and any challenges had with an active bentonite face also employed a TERRATEC Line extension contract,” says about 35.4km with 26.2km being operated in the country), pretty much been solved support injection system and machine. Prakin Arunotong, Senior aligned underground with and continues to make great on paper before the TBM double gated screw, to ensure Vice President of ITD’s MRT 23 underground stations progress, with a number commenced,” says Bunjerd face stability and mitigate In total, TBM tunnelling Business Unit. “TERRATEC and another 9km and seven of major milestones being Emnuch, TERRATEC’s Tunnel settlement during excavation in operations for ITD’s Orange has a very similar working stations on elevated structures. celebrated over recent months. TERRATEC EPBMS GEAR UP FOR NEW ISTANBUL METRO LINE ERRATEC is pleased to are all due to be launched and work extremely effectively in Tannounce that it now has a mining by mid-May. Istanbul’s mixed geology – total of nine machines working which includes low-strength concurrently on Istanbul’s The 13km-long Ümraniye- sandstones, siltstones, Metro system, in Turkey. Ataşehir-Göztepe (UAG) line, limestones and shales – as The on-site assembly of two along with its 11 new stations well as other state-of-the-art 6.56m diameter Earth Pressure and NATM-built connections, features such as VFD electric Balance Tunnel Boring will form a second north to cutterhead drives, tungsten Machines (EPBMs) is currently south rail corridor under the carbide soft ground cutting underway for the Ümraniye- densely-populated Anatolian tools that are interchangeable Ataşehir-Göztepe (UAG) Metro side of Istanbul and will be with 17’’ roller disc cutters, line, which is being constructed located entirely underground high torque screw conveyors by the by the Gulermak, Nurol at an average depth of 30m. and active articulation systems. & Makyol JV. The robust TERRATEC TBMs These machines (S66 and These EPBMs, along with have versatile mixed-face S68) – along with their sister another pair of sister machines dome-style cutterheads with machines (S65 and S67) – will that have already been an opening ratio of about be all be launched from Finans assembled for this project, 35% that have proven to Merkezi Station, which is the Newsletter - Q2, 2020 Newsletter - Q2, 2020 mid-point of the line. lines currently being built Joint Venture for the Dudullu- in the city that will increase Bostancı Metro Line – that they As the four TBMs progress Istanbul’s current 145km Metro were keen to employ a further north and south on a 24hr network to more than 480km. four TERRATEC machines on basis, they will install 1,500mm this latest project. wide by 300mm thick pre-cast Members of the JV were concrete lining rings, which so impressed with the “Terratec is excited to be consist of five segments plus performance of the TERRATEC providing yet more machines a key. Mucking will be via machine used on the to these metro projects in continuous conveyor with TBM Mecidiyeköy-Mahmutbey Istanbul,” says TERRATEC and materials supply provided Metro, which is being built Sales & Marketing Director, with the use of Multi-Service by the Gulermak, Kolin & Bruce Matheson. “We are Vehicles (MSVs). Kalyon Joint Venture – and confident they will perform the progress of two other as well as previous machines The Ümraniye-Ataşehir- 6.56m diameter EPBMs that have in the city and we look Göztepe (UAG) project is one were delivered in 2017 to the forward to breaking more of one of a number new metro Şenbay Madencilik-Kolin-Kalyon records for on-time delivery, Gulermak, Nurol & Makyol JV is currently completing TBM testing on-site for the new Ümraniye- Ataşehir-Göztepe line, the latest addition to Istanbul’s metro expansion. quick assembly and excellent M11 Line that runs from production rates.” the recently opened third International Airport on the Elsewhere in the city, four European side of the city 6.56m diameter EPBMs are southwards to Halkali (which also making good progress for will also be the final terminus To subscribe to this the Halkali-Yeni Havalimani of the new Marmaray railway). newsletter, please contact: Metro JV (consisting of Cengiz [email protected] İnşaat, Kalyon and Kolin) On the other leg of the new on the Halkali-Istanbul New M11 line (the 37km-long Airport metro line, which was Gayrettepe-New Airport metro awarded to a consortium line that is being constructed comprising Özgün Yapı and by the Kolin-Şenbay WWW.TERRATEC.CO Kolin by the Turkish Ministry of consortium), the refurbished Transport and Infrastructure TERRATEC S42 machine put (AYGM). in a solid performance on its section of the project last year, The 31km-long line, along achieving a best day of 33 with 6 new stations and rings (46m). It is now being connections, will form the prepped for its third project in western-leg of the new the city..