岩土空间滑动面和抗剪强度的理论分析

journal6 ›› 2003, Vol. 24 ›› Issue (4): 40-42.

岩土空间滑动面和抗剪强度的理论分析

(中南大学土木建筑学院，湖南长沙 410075)

出版日期:2003-12-15 发布日期:2012-11-06
作者简介:张国祥(1965-)，男，湖南省邵阳市人，博士，中南大学土木建筑学院副教授，主要从事岩土力学、岩土本构关系及弹塑性有限元数值方法研究.
基金资助:
铁道部科技攻关项目(2000G48F)

Theoretical Analysis of Geotechnical Space Slip Surface and General Shear Strength

(Civil Architectural Engineering College,Central South University,Changsha 410075,Hunan China)

Online:2003-12-15 Published:2012-11-06

摘要/Abstract

摘要：通过理论推导出空间破坏面垂直中主应力作用面和岩土任意空间面上的抗剪强度通式ｓ＝τ＝ｆ（σ，μδ），空间面上的抗剪强度只与法向应力大小和洛德参数有关，无论是破坏面还是潜在滑移面，均垂直于中主应力面.

关键词： 空间破坏面位置, 空间面上抗剪强度通式

Abstract: A general shear strength formula of geotechnical space slip surface and a general relation between space failure surface position and strength criterion are proposed in the paper.It is obtained by theoretical analysis that geotechnical space slip surface is vertical with intermediate principal stress plane and the shear strength of geotechnical space slip surface relates only to vertical stress and Lode parameter.It provides theoretical basis for the determination of geotechnical space slip surface and has a guiding significance for studying geotechnical strength criterion.

Key words: space failure surface position, general shear strength formula

张国祥, 陈灵玲 . 岩土空间滑动面和抗剪强度的理论分析[J]. journal6, 2003, 24(4): 40-42.

ZHANG Guo-Xiang, CHEN Ling-Ling- . Theoretical Analysis of Geotechnical Space Slip Surface and General Shear Strength[J]. journal6, 2003, 24(4): 40-42.