岩石破坏过程的声发射特征研究  

Study on Characteristics of Acoustic Emission in the Process of Rock Failure

作　　者：尹贤刚[1] 李庶林[1] 唐海燕[1] 王春来[1] 

机构地区：[1]长沙矿山研究院,湖南长沙410012

出　　处：《矿业研究与开发》2003年第3期9-11,共3页Mining Research and Development

摘　　要：通过对岩石受力破坏过程的声发射试验,研究了岩石破坏全过程的声发射特征,包括声发射与时间、声发射与应力水平之间的关系。研究表明,岩石声发射事件率在不同应力水平的变化很大;岩石在接近峰值强度时单位时间内的应力增长速度减小、声发射事件率出现明显下降。Through the medium of the acoustic emission test for the failure process of rock in the state of stress, the characteristics of acoustic emission in the whole process of rock failure was researched, including the relation of acoustic emission with time/stress level. It was shown that the rate of acoustic emission event at different rock stress level changed greatly; At the time when the rock strength approached to the peak value, the increasing velocity of stress in unit time reduced and the rate of acoustic emission event decreased obviously.

关 键 词：岩石破坏 声发射 监测 预报 室内试验 

分 类 号：TD326[矿业工程—矿井建设]