岩石声发射源机理的激振模型研究  

Study of shock generating model of uncovering mechanism of rock acoustic emission

作　　者：万志军[1] 周楚良[1] 

机构地区：[1]中国矿业大学

出　　处：《矿山压力与顶板管理》1998年第4期67-69,共3页Ground Pressure and Strata Control

基　　金：中国矿业大学科技基金

摘　　要：将岩石裂纹产生时的声发射源简化为振弦的振动，推导出振动方程并求解，得到声发射频率与裂纹长度、声发射振幅与裂纹宽度之间的关系，与实验结果相符。结论作为预警岩体破坏的准则有重要参考价值。Abstract The acoustic emission due to rock fracture or fissure emergence is simplified as the vibration of an oscillation string. Equations of the vibration are derived and their results are proposed. Both the relationship between emission frequency and the length of fracture or fissure and the relationship between amplitude and the width from the theoretical analysis are in agreement with laboratory test results. The research results, taken as criterion of prediction of rock failure, is of important instructive value.

关 键 词：岩石 声发射源 激振模型 岩石破裂 

分 类 号：TD315.3[矿业工程—矿井建设]