摘要
针对玲南金矿深部开采过程中岩爆等地压灾害频发的现状,建立了深部微震监测系统以实现对岩体的连续监测和岩爆的实时预报。结合传感器布置原则和矿山工程条件,对微震监测系统进行台阵分析,计算微震事件的定位精度和系统的灵敏度,得到最优的传感器布置方案。采用定点爆破进行波速校正。定位结果表明,微震监测系统的平均定位误差为5.7 m,能够满足矿山微震监测的需要。基于玲南金矿的微震监测数据,对微震活动的时空演化规律及民采定位进行研究,取得了初步成果。
In allusion to the current situation of ground pressure disaster （rock burst, etc） appeared frequently during the process of deep mining in Lingnan Gold Mine, we established a microseismic monitoring system to realize a continuous monitoring for rock mass and the real-time prediction for rock burst. Based on the sensor layout princi- ples and mine conditions, an array analysis of microseismic monitoring system was made, the location accuracy of seismic event and the sensitivity of system were calculated, and the optimal sensor placement plan was obtained. The fixed-point blasts were used for wave velocity correction. The location results show that the average positioning error of microseismic monitoring system is 5.7 m, which can meet the needs of the mine. Based on the monitoring data of Lingnan Gold Mine, the space-time evolution rule of the microseismic activity and location of private mining were studied, and preliminary results achieved.
出处
《矿冶》
CAS
2015年第4期5-9,共5页
Mining And Metallurgy
基金
"十二五"国家科技支撑计划项目(2012BAK09B03)
关键词
深井开采
微震监测
台阵分析
波速校正
民采定位
deep mine
microseismic monitoring
array analysis
wave velocity correction
location of privatemining
