Construction News
In association with www.TradeArabia.com

Larsen & Toubro's TBM achieves world record

04-08-2022

Larsen & Toubro, an Indian multinational engaged in EPC projects, hi-tech manufacturing and services, has announced that its 12.19 m dia Slurry TBM (tunnel boring machine) has achieved a major record.
 
The TBM, named ‘Mavala’, set a world record for monthly lengths by excavating 456.72 m at the Mumbai Coastal Road Project (MCRP), Package 4, the company said. 
 
Deployed from Girgaon Chowpatty, the TBM, presently the largest deployed in the country, broke the previous global record of 455.4 m for monthly tunnelling done by a 13 m single shield EPB (Earth Pressure Balance) TBM, it said. 
 
“This is a huge achievement for the entire construction industry worldwide and truly an engineering feat to be proud of,” enthused S V Desai, Director and Senior Executive Vice President (Civil Infrastructure), L&T.
 
“We achieved this speed of tunnelling thanks to our experienced and qualified team. It had given us a huge boost to speed up construction to deliver this iconic and extremely complex project in time and with quality. I take this opportunity to thank our customer, the Municipal Corporation of Greater Mumbai (MCGM), for reposing faith in us and supporting us through this whole process, as well as our employees without whom this could not have been achieved.” he added.
 
TBM ‘Mavala’ was delivered during the height of the pandemic and since external experts could not travel, the team took it upon themselves to assemble the TBM with only some ‘virtual’ help. Weighing approximately 2,500 tonnes, the TBM was then lowered into the launching shaft in a fully assembled form. Another innovative method they adopted was to ‘rotate’ the TBM inside the shaft to start the second tunnel construction which saved them several months to dis-assemble, lift, transport, re-assemble and lower the TBM at a new location. -TradeArabia News Service
 



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