WILLMAR -- The city will save $50,000 and reduce the risk of failure by letting a contractor use a different tunneling method at five locations along the interceptor sewer line. The line is being ...

Penetrating through high altitude mountains in difficult terrains and connecting inaccessible areas, tunnels have been one of ...

This dissertation presents a novel exploration of molecularly engineered tunneling devices, focusing on the tunneling current mechanisms in applications spanning chemical sensing and photovoltaic ...

In Zhengzhou, central China's Henan Province, an advanced tunneling boring machine (TBM) rolled off a production line this week, ready to be deployed for the construction of an underwater branch of ...

An independent study has confirmed that the single bore tunnel method is feasible for the BART (Bay Area Rapid Transit) Silicon Valley Phase II project, according to Santa Clara Valley Transportation ...