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在对柴里煤矿3_上906东不规则孤岛工作面冲击倾向性分析的基础上,得出了孤岛工作面及不规则区域的支承压力分布特征。通过煤层预注水卸压、大直径钻孔卸压等综合卸压技术对冲击地压危险区域进行了防治,并利用钻屑法进行监测并检验解危效果,最终降低了工作面采掘期间的冲击危险性,实现了孤岛工作面的安全生产。
Based on the analysis of the impact propensity of 906 East Irregular Island Face in 3_3 of Chaili Coal Mine, the bearing pressure distribution characteristics of the island working face and irregular region are obtained. Through the comprehensive pressure relief technology such as pre-injection pressure relief of coal seam and large-diameter borehole pressure relief, the hazardous area of rockburst is controlled and monitored by drilling cuttings method to check the effect of endangersion, finally reducing the impact during face excavation Dangerous, to achieve the safe working island surface.