论文部分内容阅读
采空区已成为影响矿山安全生产的主要危害因素之一,对其进行实时监测是防范采空区灾害事故发生的重要手段,也是进行采空区稳定性研究的主要方法。为了监测预测采空区灾害事故,潘洛铁矿建立了微震监测系统,通过对三种不同布置方案定位精度与敏感度的对比与分析,合理优化了传感器台网布置,并在现场采用人工爆破的方法对系统性能进行了测试。结合现场实际,分析总结了微震事件在时间、空间上的分布,监测效果明显,对于防范采空区灾害有一定的参考价值。
Mined-out area has become one of the main hazards affecting mine safety production. Real-time monitoring of it is an important means to prevent the occurrence of disasters in the goaf. It is also the main method to study the stability of the goaf. In order to monitor and predict the accident of mined-out area, the micro-seismic monitoring system was established in Panluo Iron Mine. By comparing and analyzing the positioning accuracy and sensitivity of three different layout schemes, the layout of sensor network was reasonably optimized and the manual blasting method The system performance has been tested. Combined with the actual situation in the field, the distribution of microseismic events in time and space is analyzed and summarized, and the monitoring effect is obvious, which is of certain reference value for preventing the disaster of goaf.