Delhi Metro Starts Tunneling on Pink Line from Naraina Vihar to Mayapuri Shaft

On this Tuesday, the J Kumar-CRTG JV started tunneling on the Delhi Metro’s new Pink line’s down-line tunnel between the Naraina Vihar station and the Mayapuri shaft! This 310m tunnel section in south-west Delhi is part of the Delhi Cantonment to Mayapuri section (CC-20) of the 58.59 km Pink line which is being constructed as part of the 159 km Phase 3 project.

This TBM had made a breakthrough at Naraina Vihar from Delhi Cantt on October 5 after which it was dragged across the station’s length (~200m) using hydraulic jacks over a period of roughly 18 days. Many images of the contractor dragging the TBM can be viewed here.

Satellite imagery of the Naraina Vihar station from where the TBM was launched:

Alignment of this section:

Yellow star - Naraina Vihar station ; Purple star - Mayapuri Shaft

Yellow star – Naraina Vihar station ; Purple star – Mayapuri Shaft

Photo Copyright: Abhay Kumar

TBM lined up at the eye of the tunnel a few days ago – Photo Copyright: Abhay Kumar

Photo Copyright: Abhay Kumar

And in he goes! (that’s what she said) – Photo Copyright: Abhay Kumar

If you notice, they only placed 1 temporary ring at the mouth of the tunnel as opposed to 3+ typically found at other locations.

Photo Copyright: Abhay Kumar

A view of the backup gantry – Photo Copyright: Abhay Kumar

Photo Copyright: Abhay Kumar

View from on top of the backup gantry. Carts on top of the rails will help to bring muck out of the  tunnel – Photo Copyright: Abhay Kumar

This 310m tunneling drive should realistically not take more than 3 months to be completed and I expect it’ll make a breakthrough sometime in February 🙂

With the launch of this TBM and the one yesterday at RK Puram, all 14 underground sections of the Pink line are now either ‘In Progress’ or ‘Complete’ – see complete list here.

For more updates on Delhi Metro’s Phase III, please visit the Delhi section of The Metro Rail Guy!


written by

Global traveler who prefers mass rapid transit

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