Delhi Metro TBM Makes a 2nd Breakthrough at Pink Line’s Naraina Vihar Station
Yet. Another. Day. Yet. Another. Breakthrough.
A Delhi Metro TBM yesterday made a 2nd breakthrough on the up line tunnel at the Naraina Vihar station on the Pink line in southwest Delhi just 3 weeks after a TBM made a breakthrough on the down-line tunnel here. This station and its associated 1103 twin tunnels are part of the 2.2 km CC-20 contract from Mayapuri to Delhi Cantonment which is being executed by a JV of J Kumar-CRTG.
The TBM, manufactured by Terratec, was launched in February this year from a shaft constructed in front of the Kendriya Vidyalaya in Naraina from where the TBM made its roughly 800 m long journey at a depth of 14.3m below the ground level.
Location of breakthrough – Map Courtesy DMRC – full full map
Actual alignment:
Yellow star – Naraina Vihar station ; Blue star – launching point of TBM
Unlike other stations along the route which abut the Ring Road, the Naraina Vihar station has been built well inside the colony due to the lack of space along the Ring Road.
Some images:
Cheers! Photo Copyright: Gaurav Kumar
Photo Copyright – Paramjot Singh Nagi
The 1st TBM that made a breakthrough on Oct 5 is now out of the tunnel – Photo Copyright: Gaurav Kumar
For more updates on Delhi Metro’s Phase III, please visit the Delhi section of The Metro Rail Guy!
– TMRG
Will the TBMs now start tunneling towards the Mayapuri shaft, or are the Mayapuri – Naraina stations already complete?
They’ll head further north to the Mayapuri shaft from here. I thought I mentioned it, but I guess not!
First it was December 2016, then first stretch in June 2017. Now I hear August 2017. Will someone please tell me when is the pink line exactly going to start.