India
Delhi Metro, Phase 3:
19 TBMs simultaneously engaged
A total of 19 Tunnel Boring Machines (TBMs) are simultaneously engaged in constructing Metro tunnels across the length and breadth of the national capital, Delhi, today, thus emerging as one of the largest tunneling projects ever undertaken below any major urban centre globally.
As part of its third phase of expansion, Delhi Metro is constructing over 53 km of underground Metro lines comprising of 74 different tunneling drives of about 37 kms. Approximately, 35 TBMs are to be used for this mammoth assignment during the entire third phase and about 21 km of tunnels (or 41 km of tunnels including...
