Engineers involved in the project said the “box-pushing” method is being used for the first time to create a Metro tunnel in ...

New Delhi, Mar 6 (PTI) The Delhi Metro Rail Corporation ... earth pressure balancing method, a widely-used tunnelling technique. Its walls are lined with precast concrete tunnel rings, cast ...

One of the entrances at Montreal's Place-des-Arts Metro station is being closed to repair cracks in the concrete slab and beams. In a news release Thursday, Montreal's public transit authority ...