The Delhi Metro Rail Corporation (DMRC) achieved yet another engineering milestone on Sunday by completing the tunnelling work on the under-construction Dwarka-Najafgarh corridor.
“The DMRC today achieved another tunnel breakthrough of Delhi Metro’s Phase - III project in South-West Delhi by completing the tunnelling on the under construction Dwarka–Najafgarh corridor (Line-9),” said a DMRC spokesperson. DMRC Managing Director Mangu Singh was also present on the occasion.
The 400 tonne Tunnel Boring Machine (TBM) emerged at Najafgarh retrieval shaft near Tura Mandi site after making a 0.67 km (555 rings) long tunnel from the site near Sai Baba Mandir of Najafgarh, the spokesperson said. “At this point the elevated alignment coming from Dwarka goes underground through a ramp.
The tunnelling on this stretch began on November 9, 2015.
The depth of the tunnel varies from 6.1 metre to 10.5 meter below the ground surface,” he said.
“This is another engineering landmark for DMRC as this part of West Delhi is heavily congested and a lot of utility diversions were made before this TBM drive,” he said. “In this corridor two tunnels for to and fro movements of trains will be made. This is the first completed tunnel,” he added.
