TBM Makes Breakthrough at Delhi Metro’s Greater Kailash Station

Yesterday morning, the S883 Tunnel Boring Machine (TBM) operated by the Pratibha-FEMC team for contract CC-23 of Delhi Metro’s Phase 3 project made a breakthrough at the Greater Kailash station! This Earth Pressure Balance (EPB) TBM with a diameter of 6.61m was commissioned from the Chirag Delhi station on January 17 2016 (see many images in link) and completed building the 545m long up-line tunnel of the new 38.235 km Magenta line which will connect Janakpuri West with Noida’s Botanical Garden by mid 2017.

Alignment of Chirag Delhi - Greater Kailash section - view Delhi Metro information

Alignment of Chirag Delhi – Greater Kailash section of Delhi Metro’s Magenta line – view Delhi Metro information

Satellite view of the GK station’s shaft which is now partially covered:

Breakthroughhhhhh! - Photo Copyright: Rahul Ranjan

Breakthrooooough! – Photo Copyright: Rahul Ranjan


Photo Copyright: Rahul Ranjan


Photo Copyright: Rahul Ranjan


Photo Copyright: Rahul Ranjan

Now only 5 more TBM breakthroughs are left for all tunneling works to be wrapped up on this line:

Contract Contractor Origin Destination Tunnel
CC-23 Pratibha – FEMC Greater Kailash Nehru Enclave Down-line
CC-23 Pratibha – FEMC Chirag Delhi Greater Kailash Down-line
CC-27 L&T – SUCG Shankar Vihar Aravali Mid-Shaft Down-line
CC-27 L&T – SUCG Vasant Vihar RK Puram Mid-Shaft Up-line
CC-27 L&T – SUCG Vasant Vihar Munirka Down-line

For a comprehensive report with progress made on all lines’ tunnels, please see my April 2016 Tunneling Update.

For more updates on the Delhi Metro’s Phase 3, check out the Delhi section of The Metro Rail Guy!


written by

Global traveler who prefers mass rapid transit

2 Responses to "TBM Makes Breakthrough at Delhi Metro’s Greater Kailash Station"

  1. Karan Teja says:

    I live in GK, so this news brings joy to my ears! Any estimate for when the 2nd breakthrough will be made? I’d like to witness it if authorities allow.

    • TMRG says:

      Should be completed in another 30 days. There are only about 200 rings (280m) to go. Before that happens, the down-line tunnel between GK and Nehru Enclave will be completed in 2 weeks – the TBM has only 90 more rings (126m) to excavate.

      DMRC has become a little strict in Phase 3 and very rarely even invites the media, but do give it a try – it’ll be worth it!


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