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Tunnel boring machine (TBM) ... From Wikipedia, the free encyclopediaA tunnel boring machine (TBM) is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata. They can bore through hard rock, sand, and almost anything in between. Tunnel diameters can range from a metre (done with micro-TBMs) to almost 16 metres to date. Tunnels of less than a metre or so in diameter are typically done by horizontal directional drilling rather than TBMs. Tunneling and Boring (Support Activities) ... Found on 1800miti.Com, the Commerce Directory - Carnon Contracting - A mining, tunnelling, and specialist drilling company in Cornwall, U.K.
- Fosroc Mining - Manufacturer of ventilation, rock bolting, strata injection, ground support and tunnelling products for the mining industry.
- Geotechnical Constructions Group - Ground freezing is a technique that has been used extensively for groundwater control and excavation support in the underground construction and mining industries for over 100 years.
- New England Boring Contractors - Test boring, soil sampling, rock coring, well monitoring, rock pressure testing and drilling since 1977.
- Thyssen Mining - Regina, Saskatchewan, Canada - Thyssen Mining is a leading mining contractor in the western U.S.A. and Canada and a world leader in shaft sinking. Our expertise includes: Shaft Sinking; Mine Development (level, ramp, and raise); Mine Rehabilitation & Dewatering; Raise Boring; Road Header Operation; Civil and Mine Construction; Ground Freezing; Shotcreting; Shaft Boring; Mine Operation (stoping, tramming, hauling); Ground Control; Raise Mining; Civil Tunneling; Mechanical and Electrical Installation; Grouting; Project Management. Thyssen Mining is also a leading innovator in introducing new technology and methods to the mining industry. Our Company introduced freezing technology in North America and has used it to sink over a dozen shafts in the Canadian potash industry.
- Total Support Services - Environmental, geotechnical, and direct-push drilling contractor licensed in Texas, Oklahoma, New Mexico, Louisiana, and Arkansas.
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