Delhi Metro Achieves Major Tunnelling Milestone on Golden Line
RAILWAYS & METRO RAIL

Delhi Metro Achieves Major Tunnelling Milestone on Golden Line

The Delhi Metro Rail Corporation (DMRC) has successfully completed an underground tunnel between Chhatarpur Mandir and IGNOU Station as part of the Golden Line corridor under its ambitious Phase 4 expansion. This 1,475-m -long tunnel, constructed using a 97-m-long Tunnel Boring Machine (TBM), marks a significant breakthrough in connecting Tughlakabad and Aerocity.

Engineering Feat and Challenges The tunnel, designed for parallel circular tunnels for up and down movement, was built at an average depth of 26 m, reaching a maximum depth of 36 metres at some points. Featuring 1,048 tunnel rings with an inner diameter of 5.8 metres, this segment stands as one of Delhi Metro’s deepest underground passages.

Constructed using the Earth Pressure Balancing Method (EPBM), the tunnel components were manufactured at a mechanised casting yard in Mundka and steam-cured to accelerate strength development. The tunnelling operation, which began on December 4, 2023, overcame challenging geological conditions, including steep gradients, mica, and hard rock formations. Notably, damage to the screw auger necessitated its replacement during construction, adding complexity to the project.

Phase 4 Expansion and Future Prospects As part of Phase 4, DMRC is developing 40.109 km of underground lines, with the Aerocity-Tughlakabad corridor spanning 19.343 km. This expansion will enhance connectivity, reduce congestion, and improve public transport infrastructure in Delhi NCR.

Industry and Market Outlook The Delhi Metro’s Phase 4 expansion underscores the increasing investment in urban transit projects, reflecting India’s commitment to sustainable and efficient mass transport. As more Indian cities embrace metro networks, the demand for advanced tunnelling technologies, urban rail infrastructure, and smart mobility solutions will continue to rise. With metro projects playing a crucial role in urban development, initiatives like the Golden Line are expected to boost real estate values, commercial activity, and overall urban efficiency in the coming years.

The Delhi Metro Rail Corporation (DMRC) has successfully completed an underground tunnel between Chhatarpur Mandir and IGNOU Station as part of the Golden Line corridor under its ambitious Phase 4 expansion. This 1,475-m -long tunnel, constructed using a 97-m-long Tunnel Boring Machine (TBM), marks a significant breakthrough in connecting Tughlakabad and Aerocity. Engineering Feat and Challenges The tunnel, designed for parallel circular tunnels for up and down movement, was built at an average depth of 26 m, reaching a maximum depth of 36 metres at some points. Featuring 1,048 tunnel rings with an inner diameter of 5.8 metres, this segment stands as one of Delhi Metro’s deepest underground passages. Constructed using the Earth Pressure Balancing Method (EPBM), the tunnel components were manufactured at a mechanised casting yard in Mundka and steam-cured to accelerate strength development. The tunnelling operation, which began on December 4, 2023, overcame challenging geological conditions, including steep gradients, mica, and hard rock formations. Notably, damage to the screw auger necessitated its replacement during construction, adding complexity to the project. Phase 4 Expansion and Future Prospects As part of Phase 4, DMRC is developing 40.109 km of underground lines, with the Aerocity-Tughlakabad corridor spanning 19.343 km. This expansion will enhance connectivity, reduce congestion, and improve public transport infrastructure in Delhi NCR. Industry and Market Outlook The Delhi Metro’s Phase 4 expansion underscores the increasing investment in urban transit projects, reflecting India’s commitment to sustainable and efficient mass transport. As more Indian cities embrace metro networks, the demand for advanced tunnelling technologies, urban rail infrastructure, and smart mobility solutions will continue to rise. With metro projects playing a crucial role in urban development, initiatives like the Golden Line are expected to boost real estate values, commercial activity, and overall urban efficiency in the coming years.

Next Story
Infrastructure Transport

Metro Line 2B Phase 1 to Boost Realty in Mumbai’s Eastern Suburbs

Mumbai’s real estate sector is set for a major boost as Phase 1 of Metro Line 2B, between Mandale and Diamond Garden, nears completion. The Mumbai Metropolitan Region Development Authority (MMRDA) has confirmed that mandatory rectifications are done, and inspections by the Commissioner of Metro Railway Safety (CMRS) have been carried out. The 5.39-km stretch with five stations forms part of the larger DN Nagar–Mandale corridor, designed to ease congestion and improve east–west connectivity. Passenger operations are expected by December 2025, with the full line slated for 2027. ..

Next Story
Resources

WattPower wins Best Inverter award at Global Solar Expo 2025

WattPower, a leading renewable energy solutions provider, has won the award for “Best Inverter in the Utility Segment” at the Global Solar Expo 2025. The recognition underscores the company’s commitment to delivering reliable, high-performance and future-ready solar solutions for large-scale projects. At the forefront of utility-scale solar, WattPower manufactures advanced string inverters that directly feed power into the Indian grid. With robust technology, high-quality components and comprehensive product lifecycle support, its solutions stand among the most sophisticated in the ..

Next Story
Real Estate

Awfis delivers 67,000 sq. ft. innovation hub for eBay in Bengaluru

Awfis Space Solutions, India’s largest flexible workspace provider and the first publicly listed workspace solutions platform, has partnered with eBay to establish a 67,000 sq. ft. innovation hub at Embassy Tech Village, Bengaluru. The mandate covers design, build and management of the new office, which will act as a strategic hub supporting diverse functions and accelerating eBay’s AI-first commerce strategy. The centre will focus on artificial intelligence, engineering, product development and applied research, strengthening eBay’s growth in India. Embassy Tech Village, North Beng..

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

Advertisement

Advertisement

Talk to us?