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The tunnel boring machine (TBM) method has become widely used and is currently an important presence within the tunnelling industry. Large investments and high ...
Because of the number of fault zones, a tunnel boring machine would have run. ... .Open-cut methodTunnel linings;New Austrian Tunnelling Method (NATM) . Dredging.
Tunnel boring machineWikipedia . 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.
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