The tunnel Boring Machine (TBM), Sudarshan 4.1 made the breakthrough from the tunnel retrieval shaft constructed at Khichdipur, Delhi
https://www.metrorailnews.in/first-tunnel-breakthrough-achieved-for-delhi-section-of-delhi-ghaziabad-meerut-rrts-corridor/
The tunnel Boring Machine (TBM), Sudarshan 4.1 made the breakthrough from the tunnel retrieval shaft constructed at Khichdipur, Delhi. this is the first breakthrough NCRTC has acheived for the Delhi section of the Delhi - Ghaziabad - Meerut RRTS...
https://www.metrorailnews.in/first-tunnel-breakthrough-achieved-for-delhi-section-of-delhi-ghaziabad-meerut-rrts-corridor/
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www.youtube.comFirst Tunnel Breakthrough achieved for Delhi section of Delhi-Ghaziabad-Meerut RRTS Corridor - Metro Rail News
www.metrorailnews.inThe tunnel Boring Machine (TBM), Sudarshan 4.1 made the breakthrough from the tunnel retrieval shaft constructed at Khichdipur, Delhi. this is the first breakthrough NCRTC has acheived for the Delhi section of the Delhi - Ghaziabad - Meerut RRTS...