多通道声发射监测系统在矿山安全开采中的应用  

Application of Multi-channel Acoustic Emission System in Mining Engineering

作　　者：文兴[1] 唐绍辉[1] 闭理楚 

机构地区：[1]长沙矿山研究院,湖南长沙410012 [2]广西北山矿业发展有限责任公司,广西河池市547000

出　　处：《矿业研究与开发》2009年第3期65-67,共3页Mining Research and Development

基　　金：“十一五”国家科技支撑计划项目(2007BAK24B04)

摘　　要：以多通道声发射监测系统在某矿山采空区顶板坍塌事故中的成功预报为例,对顶板坍塌事故发生前后一周的声发射事件的特征参数进行了统计分析,对监测到的声发射信号进行了分类,指出了岩体在不同受力阶段声发射波形的变化,总结了岩体失稳前的声发射前兆规律,对声发射在类似矿山及岩土工程监测中的应用有较好的参考价值。Based on the successful use of the multi -channel acoustic emission （ AE ） system in forecasting a roof caving of mined- out area in a mine, the characteristic parameter of the AE events occurring in the roof caving of mined - out area within the range of a week was statistically analyzed,the monitored AE signal was classified. The waveform changes of AE in rock mass under different stress was presented, the portentous AE laws of rock mass failure was summarized. These have a better reference value to the application of AE in the monitoring of similarly mining and geotechnical engineering.

关 键 词：声发射 地压监测 灾害预警 频谱特征 

分 类 号：TD76[矿业工程—矿井通风与安全]