Latest news with #TBMs
News18
08-06-2025
- General
- News18
Delhi Metro Achieves Tunnelling Breakthrough On Golden Line Corridor, Check Details
Last Updated: According to a DMRC statement, the tunnel connects Maa Anandmayee Marg to Tughlakabad Railway Colony on the Tughlakabad–Aerocity corridor. The Delhi Metro Rail Corporation (DMRC) has achieved a major construction milestone with a successful tunnelling breakthrough at Tughlakabad Railway Colony station on the upcoming Golden Line, part of Phase IV of the metro expansion. According to a DMRC statement, the tunnel connects Maa Anandmayee Marg to Tughlakabad Railway Colony on the Tughlakabad–Aerocity corridor. The breakthrough was achieved by a Tunnel Boring Machine (TBM) after completing a 792-metre stretch in presence of Delhi Health and Transport Minister Pankaj Kumar Singh, DMRC Managing Director Dr Vikas Kumar, and other senior officials, it said. The corporation said TBMs are designed to bore through various soil and rock layers while minimizing disruption to the surface. They are especially effective in urban settings and have been extensively used in previous metro phases. DMRC said the tunnel, located at an average depth of 18 metres, is one of two parallel tunnels being built for up and down movement on the corridor. The breakthrough on the second tunnel is expected by July 2025. A total of 566 tunnel rings, each with an inner diameter of 5.8 metres, were installed using the Earth Pressure Balancing Method (EPBM), the statement said. The precast concrete segments used in the tunnel lining were manufactured at a mechanised casting yard in Mundka and steam-cured for early strength. DMRC said ground movement was carefully monitored during the tunnelling to avoid any surface settlement under existing structures. Under Phase IV, 40.1 km of underground metro lines are being constructed, with the Tughlakabad–Aerocity corridor accounting for 19.3 km of that stretch, it added. The latest development marks another step forward in the ongoing expansion of the Delhi Metro network, aiming to enhance connectivity and ease urban transportation challenges in the national capital, it said. (This story has not been edited by News18 staff and is published from a syndicated news agency feed - PTI) About the Author Shahrukh Shah First Published: June 08, 2025, 08:01 IST News auto Delhi Metro Achieves Tunnelling Breakthrough On Golden Line Corridor, Check Details
India Today
08-06-2025
- Business
- India Today
Delhi Metro achieves tunnelling breakthrough on Golden Line corridor
The Delhi Metro Rail Corporation (DMRC) has achieved a major construction milestone with a successful tunnelling breakthrough at Tughlakabad Railway Colony station on the upcoming Golden Line, part of Phase 4 of the metro to a DMRC statement, the tunnel connects Maa Anandmayee Marg to Tughlakabad Railway Colony on the Tughlakabad-Aerocity corridor. The breakthrough was achieved by a Tunnel Boring Machine (TBM) after completing a 792-metre stretch in the presence of Delhi Health and Transport Minister Pankaj Kumar Singh, DMRC Managing Director Dr Vikas Kumar and other senior officials, it said. advertisementThe corporation said TBMs are designed to bore through various soil and rock layers, while minimising disruption to the surface. They are especially effective in urban settings and have been used extensively in previous metro phases. DMRC said the tunnel, located at an average depth of 18 metres, is one of two parallel tunnels being built for up and down movement on the corridor. The breakthrough on the second tunnel is expected by July 2025.A total of 566 tunnel rings, each with an inner diameter of 5.8 metres, were installed using the Earth Pressure Balancing Method (EPBM), the statement said. The precast concrete segments used in the tunnel lining were manufactured at a mechanised casting yard in Mundka and steam-cured for early said the ground movement was carefully monitored during the tunnelling to avoid any surface settlement under existing Phase 4, 40.1 km of underground metro lines are being constructed, with the Tughlakabad-Aerocity corridor accounting for 19.3 km of that stretch, it latest development marks another step forward in the ongoing expansion of the Delhi Metro network, aiming to enhance connectivity and ease urban transportation challenges in the national capital, it Watch IN THIS STORY#Delhi Metro#Delhi
Time of India
08-06-2025
- Business
- Time of India
Delhi Metro achieves tunnel breakthrough on Aerocity corridor
New Delhi: The underground tunnel between Maa Anandmayee Marg and Tughlaqabad railway colony station has been completed on the Tughlaqabad-Aerocity corridor of phase IV, also known as Golden Line. A tunnel boring machine (TBM) broke through on Saturday morning at Tughlaqabad railway colony station after boring a 0.79km-long tunnel. This tunnel breakthrough was achieved using a mammoth 96-metre-long TBM. Two parallel circular tunnels for up and down movement are being constructed on this stretch. The breakthrough on the other parallel tunnel is expected to be achieved in July 2025. The tunnel breakthrough occurred in the presence of transport minister Pankaj Kumar Singh and DMRC managing director Vikas Kumar. Singh said, "Going forward, we will further accelerate metro expansion and ensure that Delhi's citizens receive the quality infrastructure and services they truly deserve." This new tunnel was constructed at an average depth of around 18 metres. About 566 rings were installed in the tunnel, with an inner diameter of 5.8 metres. The tunnel was built using the proven technology of the earth pressure balancing method with a concrete lining made of precast tunnel rings. by Taboola by Taboola Sponsored Links Sponsored Links Promoted Links Promoted Links You May Like No dark spots, 10 years younger! Just take this from Guardian URUHIME MOMOKO Learn More Undo These tunnel rings were cast at a fully mechanised casting yard set up at Mundka. The concrete segments were cured with a steam curing system to achieve early strength. "All necessary safety precautions were taken during the construction of the tunnel below the existing built-up structures. Ground movements were monitored with highly sensitive instruments fixed on nearby structures, ensuring that there was no settlement anywhere," said Anuj Dayal, principal executive director of corporate communications at Delhi Metro Rail Corporation. As part of the phase-IV work approved so far, 40.11km underground lines are being constructed. The Aerocity-Tughlaqabad corridor has underground sections totalling 19.34km. A TBM is a machine used to excavate tunnels with a circular cross-section through various soil and rock strata. They can be designed to bore through anything from hard rock to sand. TBMs have revolutionised tunnelling work worldwide, enabling tunnels to be bored without disturbing buildings and other surface structures. TBMs are particularly useful for underground tunnelling work in congested urban areas. DMRC has been using TBMs for its tunnelling work since phase I. In phase III, when approximately 50km underground sections were built, about 30 TBMs were deployed in the national capital.
Business Standard
30-05-2025
- Business
- Business Standard
PM Narendra Modi inaugurates Kanpur Metro, built by Afcons
PRNewswire Mumbai (Maharashtra) [India], May 30: Prime Minister Narendra Modi on Friday inaugurated a 5-kilometre stretch of the underground Kanpur Metro. Of this, one completed station--Kanpur Central Metro Station--and 2.4 kilometre of tunnelling have been executed by infrastructure major M/s Afcons Infrastructure Ltd. Afcons-led consortium is executing the KNPCC-06 package, which was awarded on March 14, 2022. The project includes design and construction of a 3.826 kilometre underground stretch comprising three metro stations: Kanpur Central, Jhakarkatti, and Transport Nagar, two twin tunnels bored using two shield Tunnel Boring Machines (TBMs), with others. Tunnelling along this stretch posed significant challenges due to the presence of dilapidated buildings. However, Afcons successfully navigated these complexities and completed the tunnelling work safely and efficiently. Construction of Kanpur Central Station, which began in December 2022, and the tunnelling works between Kanpur Central and Nawabganj, initiated in August 2023, have both been completed. Afcons, which has been associated with Kanpur Metro since its early phases, was previously responsible for the Priority Section under package KNPCC-02. This package included an elevated viaduct and nine elevated stations from IIT Kanpur to Motijheel. Afcons completed this section in record time despite the challenges posed by the COVID-19 pandemic. The section was commissioned and opened to the public in June 2021. Afcons is a leader in metro construction in India, with a presence in over 10 cities. The company has executed and delivered complex projects, including India's first underwater tunnel in Kolkata, the country's first four-layer transportation system, a 5.6 kilometre double-decker viaduct for the Nagpur Metro, and one of the largest underground metro stations in India.
Business Upturn
30-05-2025
- Business
- Business Upturn
PM Narendra Modi inaugurates Kanpur Metro, built by Afcons
MUMBAI, India , May 30, 2025 /PRNewswire/ — Honourable Prime Minister Shri Narendra Modi on Friday inaugurated a 5-kilometre stretch of the underground Kanpur Metro. Of this, one completed station—Kanpur Central Metro Station—and 2.4 kilometre of tunnelling have been executed by infrastructure major M/s Afcons Infrastructure Ltd. Afcons-led consortium is executing the KNPCC-06 package, which was awarded on March 14, 2022 . The project includes design and construction of a 3.826 kilometre underground stretch comprising three metro stations: Kanpur Central, Jhakarkatti, and Transport Nagar, two twin tunnels bored using two shield Tunnel Boring Machines (TBMs), with others. Tunnelling along this stretch posed significant challenges due to the presence of dilapidated buildings. However, Afcons successfully navigated these complexities and completed the tunnelling work safely and efficiently. Construction of Kanpur Central Station, which began in December 2022 , and the tunnelling works between Kanpur Central and Nawabganj, initiated in August 2023 , have both been completed. Afcons, which has been associated with Kanpur Metro since its early phases, was previously responsible for the Priority Section under package KNPCC-02. This package included an elevated viaduct and nine elevated stations from IIT Kanpur to Motijheel. Afcons completed this section in record time despite the challenges posed by the COVID-19 pandemic. The section was commissioned and opened to the public in June 2021 . Afcons is a leader in metro construction in India , with a presence in over 10 cities. The company has executed and delivered complex projects, including India's first underwater tunnel in Kolkata , the country's first four-layer transportation system, a 5.6 kilometre double-decker viaduct for the Nagpur Metro, and one of the largest underground metro stations in India . About Afcons Infrastructure Ltd Afcons Infrastructure Ltd is flagship infrastructure engineering and construction company of the Shapoorji Pallonji Group. It has a legacy of over six decades, with strong track record of executing numerous technologically complex EPC projects both within India and internationally. As per the latest ENR survey, Afcons is ranked in Top 140 international Contractors globally; 12th in Bridges and 14th in Marine & Ports. Photo: Logo:
