The DMRC on Tuesday completed tunnelling on the underground section of the Delhi Metro's Phase 4 expansion project, with a tunnel boring machine achieving breakthrough at the site of the IGNOU station ...

Its walls are lined with precast concrete tunnel rings ... As part of the approved Phase 4 expansion, the DMRC is constructing 40.109 km of underground Metro lines. The Tughlakabad-Aerocity ...

To construct the tunnel, DMRC used the Earth Pressure Balancing Method (EPBM), installing around 1,048 precast concrete rings with an internal diameter of 5.8 meters, DMRC said in an official release.

The Delhi Metro Rail Corporation (DMRC) has completed tunnelling for the underground segment of Phase 4, reaching a significant milestone with a breakthrough at the IGNOU station. This deep tunnel, ...

The Delhi Metro Rail Corporation (DMRC) completed the tunnelling of the entire underground stretch of the Golden Line, being ...

The Delhi Metro Rail Corporation (DMRC) Tuesday completed tunnelling on the deepest underground stretch of Phase 4 with a ...