TBM for mines

Single-shield inclined shaft TBM

Single-shield inclined shaft TBM

Open-type TBM is mainly used in rock environment with completed stable surrounding rock. When the partial surrounding rock is not stable, TBM can make lining support with its own auxiliary equipment such as steel arch assembling device, jumbolter and grouting, keeping the tunnel wall stable.
When the TBM confronts with partial soft rock or fracture zone, it may need advance reinforcement with TBM’s accessory equipment such as probe drill and concrete grouting equipment, the TBM can continue to proceed after the surrounding rock become self-stable. The property variation of surrounding rock can be directly observed during tunneling, it is good to describe the geologic drawing.


8m Class Open-type TBM Main Technical Parameter:

ItemUnitDescription
total lengthmApprox. 190
total weighttApprox.1500
Min. curve radiusm500
adaptive Max. slope (up slope)2°、(down slope)2°
re-gripping timemin<5
tunneling strokemm1800
cutter head weighttApprox.160t
excavation diametermm7930 mm
Max. expanding excavationmm single lateral 50mm
total powerkW5000kW
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