叠加应力场中切眼贯通期间冲击地压综合防治技术

Comprehensive Prevention and Control Technology of Rock Burst During Cutting Hole Penetration in Superimposed Stress Field

阳城煤矿3308工作面切眼导硐埋深大,原始地应力高,构造应力相对集中。为了减轻切眼掘进贯通期间造成的冲击影响,通过对工作面切眼掘进贯通期间冲击危险主控因素及诱冲机制研究,分析出贯通区域冲击危险主控因素,制定贯通冲击地压监测及防治技术方案,并通过冲击危险状态“三场”耦合分析进行防冲方案优化,最终实现了工作面安全贯通。

In the 3308 working face of Yangcheng Coal Mine, the hole guide tunnel is buried deep, the original stress is high, and the tectonic stress is relatively concentrated. In order to reduce the impact caused by the penetration of cut-through tunneling, the main control factors of impact risk in the penetration area are analyzed through the study of the main control factors and inducement mechanism of impact during the penetration of the working face. The technical scheme of monitoring and prevention of penetrating rock burst is formulated, and the anti-impact scheme is optimized through the "three fields" coupling analysis of the impact danger state, and finally the safe penetration of the working face is realized.