A Prediction Model for Cutter Wearing Based on Driving Parameters
(1 Shenhua Baoshen Railway Group Corporation Limited, Erdos 017000; 2 The Key Lab of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai 201804)
Abstract：
Based on construction of the Shiziyang shield tunnel in mixed ground and the two main geological condi?
tions of mixed ground mainly consisting of soft rock and hard rock, influence of four parameters on cutter wearing was studied: shield total thrust, cutterhead torque, tunnelling advance rate and cutter head rotation speed. The reasons for cutter wear were analyzed and an expression for the relationship between cutter wear degree and the four driving parameters was established, providing a theoretical basis for cutter wear reduction and a prediction for the longest driving distance of a shield under similar geological conditions.
2017, Vol. 54 