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Study on the Constitutive Model for Jointed Rock Mass

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  • Qiang Xu
  • Jianyun Chen
  • Jing Li
  • Chunfeng Zhao
  • Chenyang Yuan

Abstract

A new elasto-plastic constitutive model for jointed rock mass, which can consider the persistence ratio in different visual angle and anisotropic increase of plastic strain, is proposed. The proposed the yield strength criterion, which is anisotropic, is not only related to friction angle and cohesion of jointed rock masses at the visual angle but also related to the intersection angle between the visual angle and the directions of the principal stresses. Some numerical examples are given to analyze and verify the proposed constitutive model. The results show the proposed constitutive model has high precision to calculate displacement, stress and plastic strain and can be applied in engineering analysis.

Suggested Citation

  • Qiang Xu & Jianyun Chen & Jing Li & Chunfeng Zhao & Chenyang Yuan, 2015. "Study on the Constitutive Model for Jointed Rock Mass," PLOS ONE, Public Library of Science, vol. 10(4), pages 1-20, April.
    • Handle: RePEc:plo:pone00:0121850
    DOI: 10.1371/journal.pone.0121850
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