基于高精度微地震监测的深井工作面开采强度对顶板运动规律影响研究

Research on Effect of Mining Intensity on Movement Law of Roof Strata in Deep Mines by High-precision Micro-seismic Monitoring

为研究矿井进入深部开采后开采强度对顶板运动规律的影响,运用高精度区域微地震技术,对深部开采工作面顶板运动进行监测。分析得到了随工作面开采微地震事件在时间和空间上的分布规律:微震事件首先在高位岩层发生,随后集中分布在低位岩层。联合工作面开采强度分析,得到了不同开采强度条件下顶板运动规律。

In order to investigate the effect of mining intensity on the movement law of roof strata in deep mines, using an underground high-precision micro-seismic monitoring system to monitor overlying strata movement in a working face in deep mines. The dynamic development law and the distribution pattern of micro-seismic events （MS events） in space and time were analyzed： MS events first appeared in high strata, subsequently concentrated distribution in low strata. The movement law of roof strata in different mining intensity conditions were obtained.