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Delhi: Underground tunnel on Tughlakabad-Aerocity corridor completed

    A. Luthra
    By A. Luthra Replies (1)

     Delhi Metro Rail Corporation (DMRC)'s 860 tunnel boring laid 612 rings with the inner diameter of 5,8 meters. The tunnel used an EPBM tunnel boring machine.

    https://www.tribuneindia.com/news/delhi/underground-tunnel-on-tughlakabad-aerocity-corridor-completed/

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