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| Contractors World International |
2012 Vol 3 No 7 | |
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LIBRARIES • back issues
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 PAGE 19 of 36 
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Moscow Metro Expansion Plans Make Progress - page 2 of 3 >>> |
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Tunnelling from Zhulebino Station to Lermontovsky Prospekt Station is already underway. All new stations of the Taganskaya - Krasnopresnenskaya Line are not located deep underground (the average depth is of 12 to 13 m) and being constructed using cut and cover techniques. About 900 persons are employed now on five construction sites with the work carried out around the clock. The extension of the subway line and the provision of transfer facilities at stations will ease up the transportation situation in Zhulebino area and relieve the load in Vykhino area, while improving the environmental conditions around Novoryazanskoe Highway and Moscow Beltway. A Lovat RME-242SE Tunnel Boring Machine (now part of Caterpillar) named “Olga” is used for shield tunnelling. The 330 ton TBM has a cutting diameter of 6.164 m and is 85 m long, will drive the long left-hand side tunnel at a rate of 280 m per month. The tunnel boring machine was assembled in a launch pit at the Zhulebino Subway Station construction site during March. This is the first of four tunnel boring machines that will be used in this section. Pictures right: September progress report After the scheduled shakedown operations were completed, the trial tunnelling was started. The tunnel boring machine will have to travel 1,800 m before arriving at Vykhino station. This machine is 82 m long, weighs 508 metric tons and has the cutting diameter of 6.15 m. The tunnelling system has a tunnel liner installation unit, which allows the reinforced concrete liner to be installed simultaneously with the tunnelling. The prefabricated liner blocks are 0.5 m thick and 1.4 m long. The work started in August 2011 and is to be completed in September 2013. The left hand tunnel in Lermontovsky Prospekt - Vykhino Section has been driven by more than halfway. In the other direction (Vykhino - Lermontovsky Prospekt) with a total tunnel length of 1,777.4 meter long a Herrenknecht-736 Tunneling System had driven 1,010 m of tunnel by early September. |
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| PAGE 19 of 36
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Contractors World Magazines are published by VVV Limited Publisher: Roger Lindley Page updated: September 2012 |
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