The Mumbai HSR station is the only underground station on Mumbai Ahmedabad HSR corridor. It will have 6 platforms and length of each platform is approx. 415 m (sufficient to accommodate a 16 coach bullet train).
The platform is planned at a depth of about 24 mtrs from the ground level. There will be three floors including platform, concourse and service floor.
Two entry/exit points are planned one to facilitate the access to nearby Metro station of metro line 2B and other towards the MTNL building.
The station is planned in a way that ample space is available for passenger movement and amenities at the concourse and platform level.
A dedicated skylight provisions have been made for natural lighting.
The amenities planned for passengers at stations include- Security, Ticketing, Waiting areas, Business class Lounge, Nursery, Rest rooms, Smoking rooms, Information Kiosks and incidental retail, Public Information and announcement system, CCTV surveillance, etc.
Besides that, the integration with other modes of transportation like Metro, Buses, Autos and Taxis is also planned.
Construction update (12/09/2023)
The land required for constructing the BKC station, which is about 4.8 hectares, has been handed over to the contractor by NHSRCL (National High-Speed Rail Corporation Limited).
The station will be built using the bottom-up method, which means that excavation work will commence from the ground level and concrete work will start from the foundation. The excavation required for the station is quite extensive, reaching a depth of 32 meters, with an approximate volume of around 18 lakh cubic meters.
To safely carry out such deep excavation, a ground support system must be constructed to prevent the soil from collapsing. This support system will involve the installation of 3382 secant piles, each ranging from 17 to 21 meters in depth. These secant piles will be further reinforced with ground anchors and walers at specific intervals (ranging from 2.5 to 3.5 meters) as the excavation progresses.
Currently, there are 559 labourers and supervisors on-site working day and night. This number is expected to increase as the project advances. According to estimates, the maximum workforce required per day during peak times may reach up to 6000 individuals.
The primary ongoing activity at the site is the installation of secant piles, with 14 piling rigs dedicated to this task.