上海交通大学学报

上海交通大学学报 >

2005 , Vol. 39 >Issue 05: 719 - 722,726

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2005.05.013

剪应力作用下断续节理岩体的强度特性

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  • 1.上海交通大学船舶海洋与建筑工程学院，上海 　200030
    2.重庆大学土木工程学院，重庆 　400045
周小平（1970-)，男，江西瑞金人，博士，副教授，现主要从事岩土工程的科研和教学工作．电话（Tel.): 023-65401982; E-mail: cqxpzhou@hotmail.com.

收稿日期: 2004-04-16

  网络出版日期: 2021-04-25

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

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  • 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 date: 2004-04-16

  Online published: 2021-04-25

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摘要

利用裂纹孤立原理结合裂纹线场理论，研究剪应力作用下断续多节理线尖端的精确弹性区应力场和脆断区应力场，将精确弹性区应力场和脆断区应力场匹配，确定了脆断区长度和荷载之间的关系，继而从理论上确定了断续任意多节理岩体的强度．该方法可以解决任意多节理岩体的强度特性问题，而且得到的是精确的理论解．

关键词： 剪应力; 断续节理岩体; 强度特性; 裂纹孤立原理; 裂纹线场理论

本文引用格式

周小平, 王建华, 张永兴 . 剪应力作用下断续节理岩体的强度特性[J]. 上海交通大学学报, 2005 , 39(05) : 719 -722,726 . DOI: 10.16183/j.cnki.jsjtu.2005.05.013

Abstract

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

参考文献

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