💨 Abstract

The Delhi Metro's Phase 4 expansion project has reached a significant milestone with the completion of tunnelling on the Aerocity-Tughlakabad corridor's underground section. A tunnel boring machine achieved breakthrough at the IGNOU station, marking the finish of tunnelling for both up and down lines. The new tunnel, one of Delhi Metro's deepest, was built using the Earth Pressure Balancing Method and is part of the 40.

Courtesy: theprint.in

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