Journal of Shanghai Jiao Tong University ›› 2005, Vol. 39 ›› Issue (05): 719-722,726.doi: 10.16183/j.cnki.jsjtu.2005.05.013

Special Issue: 王建华教授学报发文专辑

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The Strength Properties of Rock Masses with Intermittent Joints under Shear Stresses

ZHOU Xiao-ping1,2(), WANG Jian-hua1, ZHANG Yong-xing2   

  1. 1.School of Naval Architecture, Ocean and Civil Eng. , Shanghai Jiaotong Univ. , Shanghai 200030, China
    2.School of Civil Eng. , Chongqing Univ. , Chongqing 400045
  • Received:2004-04-16 Online:2005-05-01 Published:2021-04-25


The crack isolating theory was proposed. On the basis of the crack isolating theory and the near crack line analysis method, the elasticplastic stress field near the crack line was analyzed, the laws that the length of the plastic zone along the crack line is varied with external loads were established by the matching condition of the elastic-plastic fields on the boundary, and the strength properties of rock masses were determined. The solution is a function of the geometry of the crack array. The results show that the strength of rock masses depends on the crack spacing, orientation of the cracks, the crack interface friction coefficient and the crack half-length. The conclusions are of important significance for rock masses engineering.

Key words: shear stresses, rock masses with intermittent joints, strength properties, crack isolating theory, near crack line analysis

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