Earth Pressure Balance TBM mainly consists of cutter, anterior shield, middle shield, tail shield. It is applied to less underground water, stickiness stratum of small permeate coefficient, grittiness stratum and gravel stratum.
This TBM has many functions, such as excavation advance, synchronize lining, becoming to hole disposable, etc. It will keep soil mass pressure of excavation cabin, maintain relative stability of excavation facial through by accurately controlling the muck displacement of excavation cabin. In order to improve the plasticity, liquidity and water tightness of soil mass, and the excavation efficiency of cutter, it reduces cutter abrasion through by inject bubble, polymer and bentonite from cutter to excavation face. Different cutter structure and cutter tool configuration makes it suitable for wide and complicated geological condition.