大埋深条件下采面复合动力灾害防治技术

Compound Dynamic Disaster Prevention Technology for Mining Face Under Large Mining Depth

大采深工作面动力现象频繁显现对采掘工作造成威胁。通过对产生复合动力灾害的因素进行综合分析和对敏感指标进行检测,建立了矿井复合动力灾害的预测预报体系,从而制订出深孔松动爆破、高压注水、卸压钻孔等一系列有针对性的治理措施,有效控制了煤岩动力灾害的发生,提高了回采工作面安全系数。

The frequent appearance of dynamic phenomenon on working face with large mining depth has become the threat of coal mining work.Based on the comprehensive analysis on factors that caused compound dynamic disaster,and detection of sensitive indexes,the prediction system of compound dynamic disaster in coal mine had been established.Targeted control measures were proposed,such as deep-hole loose blasting,high pressure water injection,pressure relief by drillhole and so on.All this can effectually control compound dynamic disaster in coal mine,improve the safety factor of working face.