Afcons wraps Mumbai-Ahmedabad Bullet Train's ADIT tunnel
RAILWAYS & METRO RAIL

Afcons wraps Mumbai-Ahmedabad Bullet Train's ADIT tunnel

Afcons Infrastructure announced the completion of tunnelling work for an Additionally Driven Intermediate Tunnel (ADIT) measuring 394 meters long as part of the Mumbai ? Ahmedabad High Speed Rail (MAHSR Bullet Train) project, which spans 508.17 kilometres.

The ADIT tunnel, featuring a 42-meter deep inclined shaft, had been constructed over a period of 6 months on the eastern side of the 20.377-kilometre underground Package C-2 (BKC ? Shilphata). Its primary purpose was to facilitate access for construction workers and vehicles to a point where excavation work for the main-line tunnel could commence using the New Austrian Tunneling Method (NATM). The portal of the ADIT tunnel is situated in Ghansoli, Navi Mumbai (as per Google Maps). From its farthest end, NATM tunneling will proceed in opposite directions ? westward to Sawli?s Shaft-3 for a distance of 1.6 kilometers and eastwards towards Shilphata?s tunnel portal, covering an approximate distance of 1.8 kilometres. The contract for Package C-2, valued at Rs 63.97 billion, was awarded to Afcons Infrastructure by India?s National High Speed Rail Corporation (NHSRCL) in June 2023, with a deadline of 1888 days (equivalent to 5.17 years).

Afcons is tasked with constructing three shafts at BKC Station, Vikhroli, and Sawli, at depths of approximately 36 meters, 56 meters, and 39 metres respectively. These shafts will be utilised to launch and retrieve three Mega Tunnel Boring Machines (TBMs) with a diameter of around 13.1 meters, to bore through approximately 16 kilometres of tunnel.

Afcons Infrastructure announced the completion of tunnelling work for an Additionally Driven Intermediate Tunnel (ADIT) measuring 394 meters long as part of the Mumbai ? Ahmedabad High Speed Rail (MAHSR Bullet Train) project, which spans 508.17 kilometres. The ADIT tunnel, featuring a 42-meter deep inclined shaft, had been constructed over a period of 6 months on the eastern side of the 20.377-kilometre underground Package C-2 (BKC ? Shilphata). Its primary purpose was to facilitate access for construction workers and vehicles to a point where excavation work for the main-line tunnel could commence using the New Austrian Tunneling Method (NATM). The portal of the ADIT tunnel is situated in Ghansoli, Navi Mumbai (as per Google Maps). From its farthest end, NATM tunneling will proceed in opposite directions ? westward to Sawli?s Shaft-3 for a distance of 1.6 kilometers and eastwards towards Shilphata?s tunnel portal, covering an approximate distance of 1.8 kilometres. The contract for Package C-2, valued at Rs 63.97 billion, was awarded to Afcons Infrastructure by India?s National High Speed Rail Corporation (NHSRCL) in June 2023, with a deadline of 1888 days (equivalent to 5.17 years). Afcons is tasked with constructing three shafts at BKC Station, Vikhroli, and Sawli, at depths of approximately 36 meters, 56 meters, and 39 metres respectively. These shafts will be utilised to launch and retrieve three Mega Tunnel Boring Machines (TBMs) with a diameter of around 13.1 meters, to bore through approximately 16 kilometres of tunnel.

Related Stories

Gold Stories

Next Story
Resources

Schindler named among Forbes’ World’s Best Employers 2026

Schindler has been named among Forbes’ World’s Best Employers 2026, a global ranking recognising companies for their workplace environments.Compiled by Forbes in partnership with Statista, the ranking is based on independent employee feedback, including whether employees would recommend their organisation to friends and family.The company said the recognition reflected its focus on creating a workplace where employees can develop their expertise and build careers. ..

Next Story
Infrastructure Urban

India needs an export-execution mindset: Vishesh Jain

Interview with Vishesh Jain, Founder & CEO, EximpleWhat gaps in India’s global trade ecosystem led you to build Eximple, and what problem did you see businesses struggling with most?Eximple came out of a problem that all three founders had seen from different choke points in the trade ecosystem. India has millions of MSMEs and manufacturers, and many of them can make products that are genuinely competitive on quality. Yet only a small fraction is able to build meaningful international businesses. In our experience, the gap is usually not manufacturing capability; it is the ability to exe..

Next Story
Building Material

Nuvoco reports 13.5% revenue growth in Q2 FY27

Nuvoco Vistas Corp. Ltd. reported consolidated revenue of Rs 27.9 billion for Q2 FY27, up 13.5% year on year. Cement sales volume rose 9% to 4.7 million tonnes (MMT), while EBITDA increased 11% to Rs 4.11 billion.The company said it began its cement operations in 2014 with a 2.3 MMT per annum (MMTPA) operation at Nimbol. It now aims to reach 35 MMTPA of cement capacity by FY28, nearly 15 times its initial capacity. Its portfolio spans cement, ready-mix concrete and modern building materials.On sustainability and cost efficiency, Nuvoco partnered with CleanMax for a 46.4 MW wind-solar hybrid re..

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

SPECIAL OFFER
QR Code