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在深部开采条件下,一些高瓦斯矿井出现了煤与瓦斯突出和冲击地压并存的现象。通过对平煤十矿动力现象资料进行初步分析,提出用煤层注水、深孔卸压爆破和水力压裂技术来防治冲击地压和消除突出危险。结果表明:煤层注水不仅达到了防冲和消突的效果,还有效地降低了粉尘;深孔卸压爆破有效地消除了冲击地压的威胁,水力压裂在消除突出危险方面效果明显。
Under the conditions of deep mining, some high-gas mines have the phenomenon of coexistence of coal and gas outburst and rockburst. Based on the preliminary analysis of the dynamic data of Pingdingshan No.10 mine, it is proposed to prevent and control the rockburst and eliminate the prominent danger by injecting water into coal bed, deep hole relief blasting and hydraulic fracturing technology. The results show that not only the water injection of the coal seam achieves the effect of anti-erosion and elimination, but also effectively reduces the dust. The deep-hole pressure-relief blasting effectively eliminates the threat of rock burst. The hydraulic fracturing is effective in eliminating the outstanding danger.