Abstract At present, the determination of cutter wear is empirical. Based on an analytical calculation model with tunnelling parameters, this paper modifies the calculation models for advance rate and cutter torque by further considering the influence of pressure in the earth chamber. Combined with construction examples, it tracks and judges the data relative to driving and cutter conditions of the EPB shield, slurry shield, TBM, and so on in hard rock using the modified calculation model. The results show that the calculation results are in good agreement with reality regarding wear condition, and this method is feasible for determining cutter damage.
Abstract：
At present, the determination of cutter wear is empirical. Based on an analytical calculation model with tunnelling parameters, this paper modifies the calculation models for advance rate and cutter torque by further considering the influence of pressure in the earth chamber. Combined with construction examples, it tracks and judges the data relative to driving and cutter conditions of the EPB shield, slurry shield, TBM, and so on in hard rock using the modified calculation model. The results show that the calculation results are in good agreement with reality regarding wear condition, and this method is feasible for determining cutter damage.
ZHANG Hou-Mei-1,
Qu-Xi-2,
Yi-Jue-3
.Tracking and Determination of Cutter Damage Based on the Driving Parameters of a Shield
[J] MODERN TUNNELLING TECHNOLOGY, 2014,V51(4): 121-126
2014, Vol. 51 