The NHSRCL (National High-Speed Rail Corporation Ltd) on Thursday released tenders for the 21 KM tunnel connecting Bandra Kurla Complex (BKC) & Thane now that 59.570 sq m of land have become available for Mumbai-Ahmedabad Bullet Train project located at Vikhroli.
The tunnel’s estimated cost is about 10,000 crores, including the 7 KM section that runs beneath Thane Creek. 99% of the land needed for the elevated rail corridor in Maharashtra has now been acquired by NHSRCL.
Two businesses, Larsen & Toubro and Afcons, submitted proposals for the building of the mono tunnel, which will have a width of 13 metres, according to NHSRCL officials on Thursday.
The development follows the Bombay high court’s dismissal of a Godrej case challenging the project’s seizure of their ground in Vikhroli.
The tunnel will range in depth from 25 to 65 metres. About 40 m below Thane Creek, it will descend. The depths will be 114 metres below Parsik Hill.
An NHSRCL official stated, “We will be excavating from both ends, for which shaft will be erected at BKC, Vikhroli, and Sawli for constructing the tunnel.”
The tunnel is estimated to cost 500 crores per kilometre. At least 3 boring machines will be required for the project.
The 508-kilometre route’s only subterranean stop, BKC, will have 6 platforms that are each 415 metres long and can handle 16-coach bullet trains. It will link to Metro 2B and have a depth of 25 metres.
The authorities also displayed the designs for the stations at Virar, BKC, and Thane. The station at Virar is probably close to the hill, therefore it will show the winds coming from the mountain. Ulhas River will be close to Thane Station, causing waves to build on the roof. While the BKC will be built to look like the Arabian Sea’s clouds and waves.
