岩石变形特征和声发射特征的三轴试验研究  

Experimental Study on Triaxial Compression Deformation and Acoustic Emission Property of Rock

作　　者：陈景涛[1] 

机构地区：[1]武汉理工大学理学院,武汉430070

出　　处：《武汉理工大学学报》2008年第2期94-96,118,共4页Journal of Wuhan University of Technology

摘　　要：通过常规三轴压缩试验研究了花岗岩破坏全过程的变形特征和声发射特征,分析了围压对岩石变形特征和声发射特征的影响,结果表明岩石声发射特征与变形特征紧密相关。因此,可以利用岩石声发射现象缓慢增加阶段作为判断岩石弹性变形阶段,从而确定岩石的弹性极限,利用岩石声发射现象急剧增加阶段的起点判断岩石的破坏前兆。The deformation and acoustic emission properties of granite during failure process were researched through triaxial compression experiment.The effect of confining pressure on deformation property and acoustic emission property of granite was analyzed.The results showed that there was a better consistency between deformation property and acoustic emission property of granite.So,the slowly increasing phase of acoustic emission could be used to estimate the elastic phase and the elastic limit strength of rock,...

关 键 词：常规三轴压缩试验 变形特征 声发射特征 

分 类 号：TU458[建筑科学—岩土工程]