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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 study the influence of mining intensity on roof movement law after deep mining in deep mine, the roof movement in deep mining face is monitored by high-precision regional micro-seismic technology. The temporal and spatial distribution of microseismic events following mining is obtained. The microseismic events first occurred in the upper strata, and then concentrated in the lower strata. Mining face strength analysis of coal mining face, roof mining law under different mining intensity.