%0 Journal Article %A WU Jun %A YUAN Da-jun %A LI Xing-gao %A JIN Da-long %A SHEN Xiang %T Analysis on Wear Mechanism and Prediction of Shield Cutter %D 2017 %R %J China Journal of Highway and Transport %P 109-116,142 %V 30 %N 8 %X In order to accurately determine and predict the service life cycle of shield cutter with the purpose of guiding the shield tunneling, the wear mechanism and wear prediction model of shield cutters were analyzed by dint of theoretical analysis and measured engineering data validation. Based on the metal tribology theory, shield cutter wear was composed of abrasive wear, adhesive wear and fatigue wear. The abrasive wear and adhesive wear were the main reasons of shield cutter-wear. In allusion to the quantitative calculation of cutting-tool wear of shield excavation, combined with Rabinowicz abrasive wear equation, Archard adhesive wear equation and fatigue wear equation, the hob and cutter prediction models were established by introducing the CSM (Colorado School of Mines)'s rock-breaking mechanics model of hob and CSU (Central South University)'s rock-breaking mechanics model of cutting-tool. The measured data of complex stratum of the shield tunneling in Dalian Metro (DM) was analyzed by MATLAB software and compared with calculated values of prediction model. The results show that the error between predicted value and measured value is less than 15% with implication that prediction model is accurate. The proposed model is feasible to predict the wear of the cutter under different formation conditions. The results with engineering significance can provide references for the cutter wear prediction and exchanges of cutting tools in opening chamber during shield tunneling in future. %U http://zgglxb.chd.edu.cn/EN/abstract/article_2593.shtml