Journal of Northeastern University(Natural Science)

Journal of Northeastern University ›› 2012, Vol. 33 ›› Issue (12): 1766-1769.DOI: -

• OriginalPaper • Previous Articles     Next Articles

A method to predict cutterhead specific energy for TBM based on CSM model

Li, Gang (1); Yu, Tian-Biao (1); Fei, Xue-Ting (2); Wang, Wan-Shan (1)   

  1. (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China; (2) Northern Heavy Industries Group Co. Ltd., Shenyang 110141, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Li, G.
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Abstract: To overcome the difficulty in prediction of cutterhead specific energy for tunnel boring machines (TBM), the rock fragmentation mechanism and forces of TBM cutters are analyzed based on the fracture mechanics theory of rock. A new method to predict cutterhead specific energy for TBM is developed based on CSM model. The specific energy prediction model for TBM cutterhead is developed using the dynamic models of TBM cutters interaction with the rock. The data from the actual tunnel construction is analyzed by a tunnel example and the comparison is made with the field data. The results indicate that the model not only can predict real-time specific energy for cutterhead, but also provide a theoretical basis for the performance prediction and optimal design of cutterhead for TBM.

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