岩体声发射与微震监测定位技术及其应用

岩体在破坏之前 ,都会出现声发射和微震现象。通过仪器监测声发射和微震 ,就可以判定岩体的失稳状态及其位置。文中论述了监测和定位原理 ,简介了专门开发的单通道监测仪和多通道监测定位系统的结构和功能。该系统的绝对定位误差为 8 6m ,相对误差小于 10 %。在 4个有色金属矿山的实际应用表明 ,利用该系统的监测结果 ,可对采场或空区的稳定性作出及时、准确的评价 ,对岩体的失稳状态作出预报

ROCK-MASS ACOUSTIC EMISSION AND MICRO-SEISMIC MONITORING AND LOCALIZING TECHNOLOGY AND ITS APPLICATION

The phenomena of acoustic emission and micro seism occur before a rock mass has fractures.Through monitoring the acoustic emission and micro seism,the behavior and location of the unstable rock mass can be determined In this paper,the principle of monitoring and localization was discussed Besides,the configuration and function of the specially developed mono channel monitor and multi channel monitoring and localizing system were briefly introduced The system has an absolute localizing error of 8 6m and a relative error of less than 10% The application of the system in four nonferrous mines shows that the monitoring data gained by the system can be used to evaluate,timely and accurately,the stability of a stope or mined out area and to forecast the unstable state of a rock mass