TBM Kalvarayan completes tunneling works for third line of second phase of Metro Rail project
Tunnel Boring Machine (TBM) Kalvarayan (S1331) has successfully completed its tunnel drive and achieved a breakthrough at the Perambur Metro (South) shaft. The tunnel boring machine (TBM) ‘Kalvarayan’ bored a tunnel running to a length of 867 metres and made a breakthrough at Perambur on Tuesday. With this, Chennai Metro Rail has finished 11 tunnels so far for the phase… Continue reading "TBM Kalvarayan completes tunneling works for third line of second phase of Metro Rail project"