STUDY ON THE THREE-DIMENSIONAL CRITICAL STATE FOR GEOMATERIALS

摘要：

The critical state line (CSL) was proposed based on conventional triaxial compression tests. When it is used to predict CSL under complex stress state, the result is unreasonable.So the CSL must be modified. Based on unifeid strength theory, unified strength parameters are obtained. And the unifed strength parameters are the functions of strength parameters, lode angle, and intermediate principal stress parameter b. The unified strength parameters are introduced into the formulation of the CSL, and the CSL is modified. The modified CSL is related to lode angle and the parameter b. The modified CSL is verified. And the results shows that the modified CSL can well predict the results of the complex stress state.

关键词： Critical State Line Unified Strength Theory Complex Stress State

作者: HANGZHOU LI HONGJIAN LIAO JIAN SHEN JIAN HAN

作者单位: Department of Civil Engineering, Xian Jiaotong University, Xian, 710049, Shanxi, China School of Manergerment, Xian University of Science and Technology, Xian, 710054, Shanxi, China

会议类型: 国际会议

会议名称: 第三届中日岩土工程研讨会(Proceedings of the 3rd Sino-Japan Geotechnical Symposium)

会议地点: 重庆

会议语种:英文

页码: 329-333

在线出版日期: 2007-11-05（万方平台首次上网日期，不代表论文的发表时间）