The concrete segments were cured with a ... are particularly useful for underground tunnelling work in congested urban areas. DMRC has been using these for its tunnelling work since Phase I.

The DMRC added that the work on a parallel tunnel between Chhatarpur ... of EPBM (Earth Pressure Balancing Method) with a ...

(DMRC) The Delhi Metro Rail Corporation (DMRC) has completed the tunnelling work on its deepest underground ... (EPBM), installing around 1,048 precast concrete rings with an internal diameter ...