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Hard Rock Single Shield TBM
Hard Rock Single Shield TBM mainly consist of cutter, main drive, anterior shield, middle shield and tail shield, which is widely applied to the tunneling operation under conditions of complex rock state, lower underground water level, uneven stratum, geological fault and fracture and contact zone.
NHI’s Hard Rock Single Shield TBM achieves global reputation and good quality from many projects. For the projects under conditions of weak surrounding rock, long tunnel line, many fracture zones, the selection of this product can achieve lower cost, high efficiency and superior safety. Meanwhile, this unique design can also achieve self aligning of main drive and long distance expanded excavation.