Thrust and Torque Characteristics Based on A New cutter-head Load Model
To deal with the complex relationship among geological parameters,cutter parameters,and operating parameters during tunneling processes,a cutter-head load model was established by using CSM prediction model.The results shows force distribution on cutter-head under a certain geology,combining with disc cutters abrasion,a general principle of disc cutters layout design is proposed.Within this model,the relationship among rock Uniaxial Compressive Strength (UCS),penetration and thrust on cutter-head was analyzed.Finally,a fitting mathematical model of ZT (ratio of cutter-head torque and thrust) and penetration was established,and verified by TB880E.The results shows that with increasing penetration,cutter thrust increases,but the growth rate slows.When penetration is small,the cutter-head thrust is the main limiting factor in tunneling,and when the penetration is large,cutter-head torque is the major limiting factor in tunneling.Conclusions can be referenced for cutter-head layout design and TBM tunneling operations.
TBM Cutter-head Load Model CSM Model Cutter-head Layout Design Thrust and torque
Jianqin Liu Jiabao Ren Wei Guo
School of Mechanical Engineering,Tianjin University,Tianjin 300072,China
国际会议
天津
英文
1-6
2014-07-06（万方平台首次上网日期，不代表论文的发表时间）