应用岩石声发射凯塞效应测定地应力  

Measurement of Geo-Stress with Kaiser Effect of Acoustic Emission

作　　者：李造鼎[1] 宋纳新[1] 秦四清[1] 

机构地区：[1]东北大学,成都理工学院

出　　处：《东北大学学报（自然科学版）》1994年第3期248-252,共5页Journal of Northeastern University(Natural Science)

基　　金：国家教委博士点基金

摘　　要：本文介绍和分析了应用岩石声发射凯塞（Ｋａｉｓｅｒ）效应在实验室测量地应力的方法和存在的问题．指出，Ｋａｉｓｅｒ效应测定的地应力与现场实测值相近，Ｋａｉｓｅｒ效应存在于岩石变形的弹性阶段，记忆现今应力，围岩对Ｋａｉｓｅｒ效应影响较小，Ｋａｉｓｅｒ效应方向独立性近似成立．According to the basic principle of Kaiser effect,this article investigates the way to determinegeo-stress in laboratory and analyzes some problems unsolved up to now. It is presented that the geo-stressdetermined on the basis of Kaiser effect approaches to its numerical value determined in site. This effect isproved coming into existence in the elastic stage of deformation of rock and available to remember the existingstress,and is affected slightly by surrounding rock with its orientation found nearly independent.

关 键 词：声发射 凯塞效应 地应力 岩石 

分 类 号：TD326[矿业工程—矿井建设]