Performance of two EPBMs in twin metro tunnel construction in soft ground

The prediction of machine utilization and determination of machine performance play an important role in scheduling and planning of tunnel excavations, and the database created serves a major role in further applications. In this study, the construction methods of twin metro tunnels between Kirazlı

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TERRATEC delivers four more EPBMs to Istanbul's Metro system, Turkey

TERRATEC has announced the delivery of a further four new 6.56m diameter EPBMs for the Istanbul's Metro system, in Turkey, following a number of recent factory acceptance tests. The new TBMs will be used by the Gulermak, Nurol & Makyol JV on the Ümraniye ...

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Raising EPB Performance in Metro-Sized Machines | The Robbins Company

Raising EPB Performance in Metro-Sized Machines Posted by The Robbins Company | Jun 01, 2014 | White Papers Singapore is employing more than 29 earth pressure balance machines (EPBMs) to excavate a single 21 km metro line, Downtown Line 3 ...

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TERRATEC delivers two more EPBMs for Istanbul Metro - tunnelbuilder.com News

TERRATEC is pleased to announce the delivery of a further two 6.56m diameter Earth Pressure Balance (EPB) Tunnel Boring Machines for the ongoing expansion of Istanbul's Metro system, in Turkey, following a factory acceptance test on ...

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Ibrahim Ocak - Academia.edu

Performance of the Two EPBM in Istanbul Twin Metro Tunnel Excavations in Weak Rock more by Ibrahim Ocak Publication Date: 2013 Download (.pdf) Bookmark ...

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TERRATEC Delivers Four More EPBMs to Istanbul

TERRATEC announced the on-time delivery of four new 6.56-m diameter earth pressure balance tunnel boring machines (EPBMs) for the ongoing expansion of Istanbul's Metro ...

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LA Metro contracting - TunnelTalk

The longer screw conveyors on the larger diameter LA Metro EPBMs will improve this situation. ... contract's GBR also predicts boulders in the largely gravel and hard clayey alluvial materials. The cutterheads of the two EPBMs are dressed with disc cutters ...

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EPBM Excavations of Prague Subway "Metro V.A."

24 Metro Prague Czech Republic Tunnel 8/2012 EPBM Excavations of Prague Subway "Metro V.A." The Metro V.A. extension included 4.8 km of twin tunnels bored by 2 Earth Pressure Balance Machines (EPBMs), and 1.3 km section including mined ...

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Prague Subway EPBM | Tunnel | Rapid Transit

24 Metro Prague Czech Republic Tunnel 8/2012 EPBM Excavations of Prague Subway "Metro V.A." The Metro V.A. extension included 4.8 km of twin tunnels bored by 2 Earth Pressure Balance Machines (EPBMs), and 1.3 km section including mined double track ...

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Asia - Page 1 - Tunnels & Tunnelling International

Asia - Page 1 Stay up to date with the news updates from Asia. Latest Industry News In Asia Childom Cable Tunnel project accepts TBM 10 May, 2018 ...

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Performance of two EPBMs in twin metro tunnel construction in soft ground

The Southern African Institute of Mining and Metallurgy MPES 2015 – Smart Innovation in Mining I. Ocak 827 Performance of two EPBMs in twin metro tunnel construction in soft ground I. Ocak Istanbul University, Faculty of Engineering, Mining Engineering ...

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Double TBM breakthrough in Lucknow - TunnelTalk

Breakthrough of a pair of Terratec 6.52m diameter EPBMs after completing their first 812m long twin running tunnels between Sachivalaya and Hazratganj Stations on the Lucknow Metro marked the completion of the first TBM driven tunnels in the State capital city ...

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Marks continued growth in the Turkish market | Terratec

The order comes following the very strong performance of a TERRATEC EPBM delivered two years ago to the Mahmutbey-Mecidiyekoy Metro Line, ...

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Tunnelsoft signs contract for Cityringen Twin Tunnel Project Copenhagen - Tunnelsoft

TPC will be used by SELI to monitor the performance and progress of the first of its four EPB-TBMs being used to excavate the running tunnels of the new Cityringen metro project in Copenhagen, Denmark. The four, 5.78m diameter EPBMs will complete two 17.4 ...

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Two more Terratec EPBMs for Istanbul - The Tunnelling Journal

TERRATEC has announced the delivery of a further two 6.56m diameter EPBMs for the ongoing expansion of Istanbul's Metro system, in Turkey, following a factory acceptance test on December 6th. The new machines will be used by the Şenbay Madencilik-Kolin ...

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TERRATEC DELIVERS TWO MORE EPBMS FOR ISTANBUL METRO

TERRATEC DELIVERS TWO MORE EPBMS FOR ISTANBUL METRO TERRATEC is pleased to announce the delivery of a further two 6.56m diameter Earth Pressure Balance (EPB) Tunnel Boring Machines for the ongoing expansion of Istanbul's Metro system, in ...

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EPBM Excavations of Prague Subway "Metro V.A." - tunnel

The Metro V.A. extension included 4.8 km of twin tunnels bored by 2 Earth Pressure Balance Machines (EPBMs), and 1.3 km section including mined double track tunnel. ...

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A new approach for estimating the transverse surface settlement curve for twin tunnels in shallow and soft soils | SpringerLink

Number of tunnel (single or twin) Distance between two tunnels etc. Total surcharge load Ground properties Modulus of elasticity Unit weight Cohesion Friction angle Poisson's ratio ...

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TERRATEC delivers four more EPBMs to Istanbul - tunnelbuilder.com News

Gulermak, Nurol & Makyol JV gear up for tunnelling on the Ümraniye-Ataşehir-Göztepe Metro Line, ... Kolin & Kalyon Joint Venture – and the progress of two other 6.56m diameter EPBMs that were delivered last year to the Şenbay Madencilik-Kolin-Kalyon Joint ...

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Tunneling Innovation: - Tunnel Business Magazine

parties will be able to track building performance as the EPBMs are advanced under the structure. ... Contact grouting through segments will be performed to fill any gaps or voids behind the tunnel lining. The fast-set, two-component tailskin grouting ...

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TERRATEC marks record-breaking TBM advance in Istanbul

production shift during excavation of the Dudullu-Bostancı Metro Line, in Istanbul. At 7am, on March 03, 2018, one of two TERRATEC 6.56m diameter Earth Pressure Balance Tunnel Boring Machines (EPBMs) employed on the Dudullu-Bostancı Metro Line ...

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Ibrahim Ocak | Istanbul University - Academia.edu

Especially in metro tunnel excavations, due to their large diameters, it is important to control the surface settlements ... (EPBMs) with a 6.5 m diameter as twin tubes with 14 m distance from center to center. The EPBM in the right tube is followed about 100 m ...

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Interaction of longitudinal surface settlements for twin tunnels in shallow and soft soils: the case of Istanbul Metro | SpringerLink

In metro tunnel excavations, it is important to control surface settlements observed before and after excavation that may cause damage to the surface structures. Otherwise, the metro tunnel cannot perform the expected task and the advantages of the metro tunnel are lost (Ocak 2008a). Independent of

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