Photo of United States Air Force tunnel boring machine at Little Skull Mountain, Nevada, USA, December 1982. There are many rumors of secret military tunnels in the United States.
Linking cities with subterranean tunnels? Mining minerals thousands of feet below the Earth? No problem—engineers have spent more than two centuries designing and building monstrous machines for ...
Squeezing Ground, Fault Zones, Water Inflows, and More. True story: In a mountain range, crews worked on a shielded TBM more than 500 m below the surface. The TBM had excavated several kilometers in worsening conditions.
RETC is proud to present more than 21 technical sessions featuring the leading practitioners in the tunneling industry from across the U.S. The primary focus of the technical program is to add value to the industry through examination of the most innovative practices and products currently in use.
A tunnel is an underground passageway, dug through the surrounding soil/earth/rock and enclosed except for entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods.
A tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata.They may also be used for microtunneling.
at: Ruhr University, Bochum It was the news of the day: Yesterday, the Joint Research Center – Interaction Modeling in Mechanized Tunneling (SFB 837) was extended for four further years!
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Nanotechnology is an expected future manufacturing technology that will make most products lighter, stronger, cleaner, less expensive and more precise.
Denver, CO (Serving the Rocky Mountain Region) Welcome to Epiroc - Rocky Mountains Proud to serve the Rocky Mountain Region Whether you’re drilling for energy, mining for minerals or building roads and bridges, you’ll find the total solution packages to meet your needs at Epiroc - Rocky Mountains in Denver, CO.
KAMY series of Roadheaders offers the best cutting performance in a wide range of rock formations. Equipped with geometrically optimized transverse or longitudinal cutter heads, these flexible machines can be used to excavate subway tunnels, road tunnels, railway tunnels and water tunnels without using explosives.