Advanced Construction Technology Services (ACTS) has contracts for geotechnical work for 3 lines of the proposed subway in Doha, Qatar. They have completed investigations for approximately 95 km of line and 51 stations and are […]
In their October 2010 cover story, Tunnel Business Magazine (TBM) had this article on the construction of the Washington, D.C. Metro system. They describe how this was the first use of the NATM in the […]
The City of Zhengzhou is set to become a major rail crossroads for China, located at the intersections of China’s major North-South and East-West lines. Currently tunneling with tunnel boring machine (TBM) is taking place […]
City officials and residents in Amsterdam, Netherlands are looking at the recent Cologne tunnel collapse and wondering if the construction of their fourth metro line could have similar problems. Although the tunnels themselves have not […]
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