L&T’s 12.19m-diameter tunnel boring machine (TBM) Mavala excavated 456.72 metres in a single month on the Mumbai Coastal Facet road Challenge (MCRP) Kit 4.
Launched from Girgaon Chowpatty, the TBM, currently the largest at work in India, broke the old world document of 455.4 metres for month-to-month tunnelling performed by a 13m single-defend earth stress steadiness TBM.
L&T director and senior executive VP for civil infrastructure, SV Desai, acknowledged: “Right here’s an wide fulfillment for the entire construction business worldwide and in actuality an engineering feat to be comfy with.
“We carried out this velocity of tunnelling thanks to our skilled and qualified team. It had given us an wide enhance to velocity up construction to bring this iconic and extraordinarily advanced mission in time and with quality,” he added.
Mavala, constructed by the China Railway Construction Heavy Industry Firm, used to be dropped at situation on the top of the Covid-19 pandemic and as the Chinese technicians were unable to stir, L&T’s situation team had to assemble the machine themselves with solely ‘digital’ wait on from the manufacturer.
Segment 1 of the MCRP is a 9.98km portion from Princess Facet road Flyover at Marine Traces to the Worli discontinuance of the Bandra-Worli Sea Hyperlink (BWSL).
L&T has the contract for two of the three work packages on Segment 1.
Kit 1 entails the construction of a 3.82km-prolonged portion over reclaimed land from Priyadarshini Park to Baroda Palace with interchanges at Amarson Garden and Haji Ali.
Its second bundle (confusingly, Kit 4) entails the construction of a two-kilometre twin-bored tunnel along with lower-and-quilt portion to originate a combined road dimension of 4.06km. When carried out, this portion could perhaps be the largest and deepest bored road tunnel in India.