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.
A 12.24 km long tunnel between Maroshi and Ruparel College is being excavated by tunnel boring machine (TBM) to improve the water supply system of Greater Mumbai, India.
Tunnel-boring machines (TBMs) – sometimes known as ‘mega-moles’ within the industry – are pieces of drill-mining equipment used to excavate long tunnels, such as those used by cars and trains in hilly and mountainous regions.
James Robbins’ TBM at Oahe Dam was little more than a soil shield with a rotating cutter head. Although machine simplistic compared to modern day TBMs, it introduced two of the most basic concepts upon which all subsequent TBMs are based:
TUNNEL BORING MACHINES. Tunnel Boring Machines (TBMs) are used to install 48-96-in. OD jacking pipe and are interiorly controlled by an operator. TBMs excavate soil at the face of the bore when hydraulic motors rotate the inner drum, the cutter head excavates and soil is transported via conveyor and haul unit for disposal from the launch shaft.
Featured Projects | Mexico City, Mexico Túnel Emisor Poniente (TEP) II. A Robbins Crossover (XRE) TBM was chosen to bore a 5.8 km (3.6 mi) tunnel as part of Mexico City’s wastewater management efforts, making it the first Crossover machine to bore in North America.
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E-Berk Tunnelling & Foundation Technologies was founded as a Metaluriligy Company in 1993 and has been acting as a global supplier for TBM (Tunnel Boring Machine) Spare Parts since 2006.
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Meet our giant tunnelling machines. Digging the new tunnels was a 24-hour a day job, 7 days a week. Crossrail used eight tunnel boring machines (TBMs) to construct the new rail tunnels under London.
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.