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近年来,受复杂地质条件影响的冲击矿压灾害越来越频繁,赵楼煤矿首采工作面在火成岩底板区域发生过数次严重的底板冲击事故。通过生产中发生的几次底板冲击事故分析了火成岩坚硬底板诱发冲击矿压的原因,指出了火成岩的高强度和其造成的高水平应力是导致底板冲击的主因;并提出了火成岩底板冲击的控制机理和防治对策。针对赵楼煤矿首采工作面的坚硬火成岩侵入底板,提出了具体有针对的底板防冲措施,取得了良好的防冲效果。
In recent years, the impact of rockburst by complex geological conditions is more and more frequent. The first mining face in Zhaolou coal mine has experienced several serious floor impact accidents in the igneous rock floor area. The causes of rock burst induced by hard floor of igneous rock are analyzed through several floor impact accidents occurred in production. It is pointed out that the high strength of igneous rock and the high level of stress caused by it are the main causes of floor impact; and the control of igneous floor impact Mechanism and prevention and control measures. Aimed at the hard igneous rocks in the first coal mining face of Zhaolou coal mine, the concrete anti-scouring measures are put forward and the good anti-scour effect is obtained.