2.7 km Breakthrough Achieved in Bullet Train Tunnel
RAILWAYS & METRO RAIL

2.7 km Breakthrough Achieved in Bullet Train Tunnel

On 9 July 2025, the first major breakthrough was achieved in the 21-kilometre tunnel being built between Bandra-Kurla Complex (BKC) and Shilphata in Maharashtra, with the successful completion of a 2.7-kilometre continuous section.

Out of the total tunnel length, 5 kilometres is being constructed using the New Austrian Tunnelling Method (NATM) between Shilphata and Ghansoli, while the remaining 16 kilometres will be executed with Tunnel Boring Machines (TBMs). The tunnel also features a 7-kilometre undersea stretch beneath Thane Creek, a first of its kind in India.

To accelerate progress in the NATM section, an Additionally Driven Intermediate Tunnel (ADIT) was created, allowing parallel excavation from both Ghansoli and Shilphata. To date, approximately 1.62 kilometres has been excavated from the Shilphata side, with total NATM progress reaching around 4.3 kilometres.

Extensive safety systems have been installed on-site, including ground settlement markers, piezometers, inclinometers, strain gauges, and biometric access controls. These are designed to ensure secure tunnelling without disrupting surrounding structures or habitats.

On 9 July 2025, the first major breakthrough was achieved in the 21-kilometre tunnel being built between Bandra-Kurla Complex (BKC) and Shilphata in Maharashtra, with the successful completion of a 2.7-kilometre continuous section.Out of the total tunnel length, 5 kilometres is being constructed using the New Austrian Tunnelling Method (NATM) between Shilphata and Ghansoli, while the remaining 16 kilometres will be executed with Tunnel Boring Machines (TBMs). The tunnel also features a 7-kilometre undersea stretch beneath Thane Creek, a first of its kind in India.To accelerate progress in the NATM section, an Additionally Driven Intermediate Tunnel (ADIT) was created, allowing parallel excavation from both Ghansoli and Shilphata. To date, approximately 1.62 kilometres has been excavated from the Shilphata side, with total NATM progress reaching around 4.3 kilometres.Extensive safety systems have been installed on-site, including ground settlement markers, piezometers, inclinometers, strain gauges, and biometric access controls. These are designed to ensure secure tunnelling without disrupting surrounding structures or habitats.

Next Story
Infrastructure Urban

Mount Expands Tumkur Facility with New Automated Panel, PEB Lines

Mount Roofing & Structures Private Limited, one of India's fastest-growing manufacturers in PUF and a leading solutions provider across pre-engineered building (PEB) and polycarbonate sheets, simultaneously inaugurated its second fully automated continuous sandwich panel manufacturing line and a new PEB manufacturing plant at its integrated campus in Tumkur.The milestone expansion, part of a total investment of Rs 250 crore, marks a significant advancement in the company's commitment to engineered performance, manufacturing scale, and industrial growth. The integrated facility spans approx..

Next Story
Infrastructure Transport

India Becomes First to Produce Bio-Bitumen for Roads

India has become the first country in the world to commercially produce bio-bitumen for use in road construction, according to Road, Transport and Highways Minister Nitin Gadkari. Bitumen, a black and viscous hydrocarbon derived from crude oil, is a key binding material in road building, and the bio-based alternative is expected to significantly improve the sector’s environmental footprint.Addressing the CSIR Technology Transfer Ceremony in New Delhi, Mr Gadkari congratulated Council of Scientific and Industrial Research on achieving the milestone, noting that the initiative would help curb ..

Next Story
Infrastructure Urban

HILT Policy Seen Boosting Telangana Revenue Sharply

The Hyderabad Industrial Land Transformation (HILT) Policy is expected to generate around Rs 1.08 billion in revenue for the Telangana state exchequer, according to Deputy Chief Minister Bhatti Vikramarka Mallu. Speaking in the Telangana Legislative Assembly, he said the policy would be implemented within a six-month timeframe in a transparent manner, with uniform rules applicable to all stakeholders. Mr Vikramarka noted that without the HILT Policy, the state would have earned only about Rs 1.2 million per acre. Under the new framework, however, revenue is projected to rise sharply to Rs 70 ..

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

Advertisement

Advertisement

Advertisement

Open In App