Study of post-peak stress-strain relationship of rock mass with joint

被引：2
|
作者：
Wang, Lei [1 ]
Wang, Haiyuan [1 ]
Jiang, Liangyan [1 ]
机构：
[1] PLA Inst Engn Corps, Xuzhou 221004, Jiangsu, Peoples R China
来源：
Progress in Industrial and Civil Engineering III, Pt 1 | 2014年 / 638-640卷
关键词：
rock masses with joint; post-peak; stress-strain relationship; strength parameter evolution;
D O I：
10.4028/www.scientific.net/AMM.638-640.561
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The post-peak stress strain relationship expression of intact rock cannot well reflect post peak properties of rock masses with joint, in order to obtain post peak stress-strain relationship suitable for rock masses with joint, based on the test data, based on the Kulun strength criterion, analysis evolution of post peak strength parameters of rock masses with joint. According to rock masses with joint under different confining pressure and fracture dip at different post peak behavior, the post peak stress-strain relationship is simplified as new kind type, regarding maximum principal strain as strain softening parameter, on the assumption cohesion and internal friction angle are the piecewise linear functions of maximum principal strain, the method of solving express of new post-peak stress-strain relationship of rock masses with joint is obtained.
引用
收藏
页码：561 / 564
页数：4
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