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Microtunnel boring machine

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Microtunnel Boring Machines (MTBM) are used for microtunneling. They are very similar to tunnel boring machines (TBM)but on a smaller scale. These machines generally vary from 0.61 to 1.5 meters (2 ft 0 in to 4 ft 11 in) but smaller and larger machines have existed. The main differences between MTBM and TBM operations are:

  • MTBM is operated by remote control.
  • MTBM usually has the tunnel liner pushed behind the machine instead of built as the machine advances.

See also

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