›› 2012, Vol. 33 ›› Issue (4): 1253-1259.

• Numerical Analysis • Previous Articles     Next Articles

Elastic composite element model for jointed rock masses supported by shotcrete lining and anchor bolt

QIN Nan，CHEN Sheng-hong   

  1. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
  • Received:2011-06-28 Online:2012-04-13 Published:2012-04-26

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Abstract: Elastic model for jointed rock masses supported by shotcrete lining and anchor bolt is established by composite element technique. In this model, general finite element mesh can be generated without considering the existence of joint, anchor bolt and shotcrete lining; then composite element information can be formed according to the relevant information of them. The localized nonlinear deformation and interactive relationship of anchor bolt and shotcrete lining on joint can be mainly considered in the model. Then numerical example is given to verify the rationality of the model. This composite element algorithm includes the advantages of equivalent simulation and discrete simulation and will be of good application prospects.

Key words: jointed rock masses, shotcrete lining and anchor bolt, elastic, composite element model

CLC Number: 

  • TU 457
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