With a 4.1m diameter, the Herrenknecht EPB shield machine completed two drives and an extension for the project in Columbus, Ohio. Considering that ...
Including analyse of the cost of twin-bore tunneling for BSVII, a cost report released by the Santa Clara Valley Transportation Authority (VTA) affirms ...
In order to constructing a tunnel almost 1.2km long, the joint venture, comprising Bouygues Construction and Robb Carr, recently commissioned TBM Jane Starkey. ...