岩石声发射Kaiser效应的理论和实验研究  

THEORETICAL AND EXPERIMENTAL STUDIES FOR[HJ*4/5〗 KAISER EFFECT IN ROCK

作　　者：陈忠辉[1,2] 唐春安 徐小荷[1,2] 李春林 

机构地区：[1]东北大学采矿系 [2]吕利欧大学

出　　处：《中国有色金属学报》1997年第1期9-12,共4页The Chinese Journal of Nonferrous Metals

基　　金：国家自然科学基金

摘　　要：利用统计损伤模型研究了岩石声发射的Ｋａｉｓｅｒ效应机制，建立了声发射数和岩石微元强度统计分布之间的定量关系。根据微观统计损伤理论，利用简单的力学模型推导出单轴应力状态下的Ｋａｉｓｅｒ效应表达式，理论和实验结果较吻合。The mechanism of Kaiser effect was studied with the aid of a damage model for rock. Recognizing that the acoustic emission(AE) counts are transitional elastic waves due to local damage of the rock, the quantitative relation between AE counts and the statistical distribution of the local strength of the rock has been established. According to damage theory, an expression for Kaiser effect under uniaxial stress state was derived from the model. This is found to be in agreement with the experimental results.

关 键 词：声发射 KAISER效应 岩石破裂 岩石 

分 类 号：TU459.3[建筑科学—岩土工程]