Package MAHSR C-2 is part of the Mumbai-Ahmedabad High Speed Rail Corridor and covers construction of a 21km tunnel between Bandra-Kurla Complex and Shilphata in the state of Maharashtra, with a 7km undersea section at Thane Creek.
“Construction of the 21km of tunnel is one of the most challenging contracts of the Mumbai-Ahmedabad HSR corridor, which includes construction of the country’s first twin track undersea rail tunnel of 7km at Thane Creek. Three TBMs and NATM will be used for the construction of this tunnel,” said NHSRCL managing director Shri Rajendra Prasad.
The tunnel will be a single tube accommodating twin tracks and feature 39 equipment rooms at 37 locations. It will run about 25-65m below ground.
Three 13.1m diameter TBMs will bore around 16km of the tunnel and NATM will be used for the remaining 5km.
Afcons will build shafts at Bandra-Kurla Complex (under package C1), Vikhroli, and Sawli at approximate depths of 36m, 56m and 39m respectively to launch and retrieve the TBMs. An inclined shaft of 42m at Ghansoli and tunnel portal at Shilphata will enable the use of NATM.
The Mumbai–Ahmedabad High-Speed Rail (MAHSR Bullet Train) project is a 508.17km line that will connect Mumbai with Ahmedabad in Gujarat. It will feature 12 stations.
