根据郓城煤矿1300工作面回风巷留底煤区域的深度和范围,划分了工作面回风巷危险区域。通过对留底煤区域冲击地压的破坏机理分析,对划分的危险区域采用爆破卸压、大直径钻孔卸压、开掘卸压槽等综合措施进行防冲治理,并结合钻屑法和应力在线监测技术对危险区域进行实时监测,有效地降低了冲击地压灾害的发生。 Based on the depth and range of the bottom coal area of ​​the return airway of No. 1300 face of Tancheng Coal Mine, the hazardous area of ​​the air return lane of the face is divided. Through the analysis of the failure mechanism of the rock burst in the left coal area, blasting pressure relief, large diameter borehole pressure relief, digging pressure relief groove and other comprehensive measures are adopted to prevent and control the hazardous areas. In combination with drilling cuttings method and stress Online monitoring technology real-time monitoring of hazardous areas, effectively reducing the occurrence of rock burst.