Sean is a certified engineering geologist and professional geologist specializing in characterizing geologic ground conditions, and hazards for critical facilities involving tunnels and underground ...

The tunnel is part of a 24-mile (39-kilometer ... The hollow cutter head facilitates navigation through complex geology.

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Delhi Metro completed tunneling on a deep underground stretch of Phase IV, marked by the breakthrough of a tunnel boring ...

Geology experts previously identified anomalies in the tunnel structure, but excavation at two suspected locations did not yield any results. Rescuers are currently focused on removing debris in ...

The Delhi Metro Rail Corporation (DMRC) has achieved a major construction milestone on the Phase 4 Golden Line with ...