Latest news with #NaveenGulati
The Hindu
31-07-2025
- Business
- The Hindu
‘Kavach' training reviewed
Railway Board Member (Infrastructure) Naveen Gulati has reviewed the progress of training being imparted to railway officers, supervisors and industry personnel for upskilling their knowledge in connection with various signal and telecommunication activities as well as implementation of 'Kavach' – indigenous automatic train protection system, on Thursday. He also addressed group of principle head of departments of signal & telecommunication of zonal railways undergoing training at IRISET and emphasised the need for faster roll out of 'Kavach'. The RB member inspected the various training equipment installed at the Kavach Laboratory and other developments being undertaken by IRISET & Centre of Excellence. A comprehensive review on various works being executed in the zone was also reviewed with SCR GM Sanjay Kumar Srivastava, IRISET director Sharad Kumar Srivastava, Railway Board Addl Member (Signal) Vijaylaxmi Kaushik, and principal executive director (S&T)/development Saurabh Bandopadhyaya, said a press release.
Indian Express
31-07-2025
- Business
- Indian Express
How did the Delhi Metro achieve tunnel breakthrough on Phase-4 Golden Line at Tughlakabad?
Delhi Metro Rail Corporation (DMRC) has marked another major milestone on its Phase 4 Golden Line project. A tunnelling breakthrough was achieved on Tuesday, with a tunnel boring machine (TBM) surfacing at the Tughlakabad Railway Colony station site. The development marks the completion of a 792-metre underground stretch between Tughlakabad and Tughlakabad Railway Colony, helping boost connectivity on the upcoming Aerocity-Tughlakabad corridor. The milestone was achieved in the presence of Railway Board Member (Infrastructure) Naveen Gulati and senior DMRC officials. This is one of several tunnel segments under construction as part of Phase 4. Of the total 65.20 km approved so far, 40.1 km are underground, with the Aerocity-Tughlakabad corridor accounting for 19.34 km of these. According to officials, the tunnel was excavated at an average depth of 18 metres using a 91-metre-long TBM operated by civil contractor M/s Afcons Infrastructure Ltd. This is one of two parallel tunnels being built for up and down train movement on the corridor. The construction was carried out using the Earth Pressure Balancing Method (EPBM), a tunnelling technique that allows for controlled excavation through varied soil and rock layers. The tunnel's internal structure comprises precast concrete rings, 559 of which were installed to form the passage with an inner diameter of 5.8 metres. These rings were manufactured at a mechanised casting yard in Mundka, where a steam curing system was used to help the concrete segments achieve early strength. To ensure structural stability and public safety during underground excavation in a built-up area, ground movement was constantly monitored using sensitive instruments fixed to nearby structures. Officials said there was no settlement reported during the operation. Delhi Metro has relied on TBMs since Phase 1 and scaled up its usage in Phase 3, where 30 such machines were deployed to construct around 50 km of underground lines in Delhi.
Time of India
30-07-2025
- Business
- Time of India
DMRC achieves tunnel breakthrough at Tughlakabad Railway Colony on Phase 4's Golden Line
Advt Construction details and safety measures By , ETInfra The Delhi Metro Rail Corporation (DMRC) has completed another section of underground tunnelling on the Tughlakabad–Aerocity corridor under Phase 4 of the metro network expansion. A Tunnel Boring Machine (TBM) achieved a breakthrough at the Tughlakabad Railway Colony site after completing a 792-metre-long milestone was marked in the presence of Naveen Gulati, Member (Infrastructure), Railway Board, along with senior officials of DMRC. The work was carried out by civil contractor Afcons Infrastructure Ltd Two parallel tunnels are being constructed between Tughlakabad and Tughlakabad Railway Colony stations for up and down train movement. The latest tunnel was constructed at an average depth of 18 metres using a 91-metre-long TBM. A total of 559 concrete rings have been installed, each with an inner diameter of 5.8 tunnel was built using Earth Pressure Balancing Method (EPBM), with precast concrete segments cast at a mechanised facility in Mundka. A steam curing system was used to achieve early strength for the segments. The construction took place beneath existing built-up areas, with ground movement monitored by sensors installed on nearby structures. DMRC stated that no settlement was observed during the Aerocity–Tughlakabad corridor has 19.343 kilometres of underground sections, forming part of the 40.109 kilometres of approved underground work under Phase Boring Machines have been used by DMRC since Phase 1. In Phase 3, when around 50 kilometres of underground lines were constructed, about 30 TBMs were deployed across the capital. These machines are designed to excavate through varying strata and are widely used for tunnel construction in urban areas to minimise surface disruption.
News18
29-07-2025
- Business
- News18
DMRC achieves tunnel breakthrough on Phase 4s Golden Line at Tughlakabad
New Delhi, Jul 29 (PTI) The Delhi Metro Rail Corporation (DMRC) on Tuesday achieved a milestone in its Phase 4 expansion work with a tunnel breakthrough on the Tughlakabad–Aerocity corridor, a statement said. A Tunnel Boring Machine (TBM) completed the excavation of a 792-metre underground stretch between Tughlakabad and Tughlakabad Railway Colony. The breakthrough took place at the railway colony station site in the presence of Railway Board Member (Infrastructure) Naveen Gulati and senior DMRC officials, according to a statement. The tunnel, built at an average depth of 18 metres, was constructed using Earth Pressure Balancing Method (EPBM) technology. The 91-metre-long TBM installed 559 concrete rings during the process, with each ring having an internal diameter of 5.8 metres, the DMRC said in the statement. The tunnel lining was made using precast concrete segments manufactured at a mechanised casting yard in Mundka and steam-cured for early strength, it said. The DMRC said that special precautions were taken during the underground work to avoid any disturbance to the surrounding buildings. Ground movement was closely monitored through precision instruments to ensure structural safety in the area, it said. The DMRC said the project is being executed by Afcons Infrastructure Ltd, one of the contractors appointed for Phase 4 construction. The Aerocity–Tughlakabad corridor features a total of 19.343 kilometres of underground stretches, out of the 40.109 kilometres of underground alignment planned under phase 4, it read. The DMRC has been using TBMs since its first phase to construct underground sections without disturbing existing surface structures, a method particularly suited for congested urban areas. The agency deployed around 30 TBMs across the city during Phase 3, which included nearly 50 kilometres of underground work. PTI SHB AS AS view comments First Published: July 29, 2025, 18:45 IST Disclaimer: Comments reflect users' views, not News18's. Please keep discussions respectful and constructive. Abusive, defamatory, or illegal comments will be removed. News18 may disable any comment at its discretion. By posting, you agree to our Terms of Use and Privacy Policy.
India Today
29-07-2025
- Business
- India Today
Delhi Metro achieves major milestone: Tunnel completed on golden line. Know more
The Delhi Metro Rail Corporation (DMRC) has marked another landmark moment in its ongoing Phase 4 project. A major underground tunnelling achievement was celebrated today as the Tunnel Boring Machine (TBM) broke through at the Tughlakabad Railway Colony site. This forms a crucial part of the upcoming Aerocity–Tughlakabad corridor, which is expected to boost connectivity across South Delhi and breakthrough occurred after the TBM completed boring a 0.792-kilometre-long tunnel between Tughlakabad and Tughlakabad Railway Colony. Senior officials, including Sh. Naveen Gulati, Member (Infrastructure) of the Railway Board, was present for the event. The civil contractor for this project, M/s Afcons Infrastructure Ltd., executed the tunnelling using a 91-metre-long corridor is being developed with two parallel circular tunnels to accommodate both up and down metro movements. This design ensures smoother operations and efficiency in future metro services along the TECHNOLOGY AND SAFETY IN TUNNEL CONSTRUCTION The tunnel was constructed at an average depth of 18 meters using the Earth Pressure Balancing Method (EPBM), a cutting-edge technology that ensures stability and safety in variable soil conditions. Over 559 tunnel rings, each with an inner diameter of 5.8 meters, have been installed. These precast concrete rings were manufactured at a fully mechanised casting yard in Mundka and steam-cured to gain rapid DISRUPTION TO SURFACE STRUCTURESTo avoid damage to above-ground buildings, ground movements during tunnelling were closely monitored using high-precision instruments. This approach ensured zero settlement and structural safety across the densely built-up Tughlakabad area. PHASE 4 TO SEE OVER 40 KM OF UNDERGROUND CONSTRUCTIONAs part of the ongoing Phase 4 expansion, DMRC is constructing 40.109 kilometres of underground tracks. The Aerocity–Tughlakabad corridor alone includes 19.343 kilometres of these underground tunnels, which will significantly reduce travel times once THE HEART OF MODERN URBAN TUNNELLINGTunnel Boring Machines (TBMs) have transformed the tunnelling landscape worldwide. These giant machines can bore through various soil types and rock formations, making them ideal for underground projects in congested cities. Delhi Metro has relied on TBMs since Phase 1 and ramped up their usage in Phase 3, where about 30 TBMs were deployed to construct nearly 50 kilometres of successful tunnelling milestone not only underscores DMRC's technical capabilities but also brings the city one step closer to enhanced mobility. With safety, precision, and sustainability at its core, the Delhi Metro continues to push boundaries and set benchmarks in urban infrastructure.- EndsTrending Reel
