π Tender Overview
Project Cost : Rs 1,08,000 crore.
Scope: The 508km Mumbai-Ahmedabad high-speed link will be Indiaβs maiden high-speed rail project. It is part of the 650km Pune-Mumbai-Ahmedabad line, one of the six high-speed corridors identified for implementation in the country. The high-speed rail (HSR) linking Ahmedabad, Gujarat, with Maharashtraβs capital Mumbai is being advanced as a fast-track pilot project. The high-speed line is expected to spearhead the bullet train services in other parts of India. Estimated to cost Rs1.1tn ($17.15bn), the project is being implemented by Rail Vikas Nigam and National High Speed Rail Corporation (NHSRC).Ground was broken for the construction of the line on 14 September 2017 by Indiaβs Prime Minister Narendra Modi and Japanβs Prime Minister Shinzo Abe.
On September 2023, The laying of track works have been initiated for the Mumbai-Ahmedabad High-Speed Rail (MAHSR) corridor with the start of the construction of the first reinforced concrete (RC) track bed in Surat.
Inspired by Japanese Shinkansen, the project has introduced the J-slab ballastless track system in India. The track system comprises pre-cast track slabs which support fastening devices and rails, with around 300 mm thickness, and is constructed in-situ for both up and down track lines on viaduct tops, with a width of 2,420 mm.
The RC anchors of 520 mm diameter and 260 mm height are provided to maintain precise alignment for train operations at speeds of up to 320 kmph. In material procurement, activity is underway and over 14,000 MT of JIS rails and 50 molds for casting track slabs have already been delivered.
As per National High Speed Rail Corporation (NHRCL), dedicated factories with cutting-edge technology and infrastructure have been established to manufacture track slabs, ensuring highest quality and safety.
NHRCL will use specialized construction machinery includes rail feeder cars, slab laying cars, and cement asphalt mortar (CAM) laying cars.
On June 2023, The National High Speed Rail Corporation (NHSRCL), which is implementing India's first bullet train project, has awarded a Rs 6,397 crore contract to Afcons Infrastructure, for constructing a 21-km-long tunnel.
As per tender, Afcons will undertake the construction of a twin track under the sea rail tunnel of seven km at Thane Creek in Maharashtra, and three tunnel boring machines and new Austrian tunnelling method will be utilised for the construction work.
Technical bids of this tender were opened in February, 2023 and financial bids were opened during April 2023.
The Ministry of Railways is pursuing the goal to run the bullet train on a larger section in 2027. The maximum speed will be 320 kmph, and the total length of the corridor stands at 508 km spread over 12 stations between Mumbai and Sabarmati.
The line will be built on an elevated corridor for most of its length (468km) along an existing route, barring a 27km section inside a tunnel (including a 7km section undersea)