复杂开采条件下高冲击危险区巷道支护技术研究  

Study on roadway support technology for high rock burst risk area under complex mining conditions

作　　者：林惠立[1,2] 刘涛[3] 

机构地区：[1]煤炭科学技术研究院有限公司安全分院,北京100013 [2]煤炭资源高效开采与洁净利用国家重点实验室(煤炭科学研究总院),北京100013 [3]兖州煤业股份有限公司,山东济宁272200

出　　处：《煤炭工程》2016年第12期38-41,共4页Coal Engineering

摘　　要：为解决深部复杂开采条件下面临的巷道冲击地压问题,通过采场覆岩结构理论研究,得到了工作面支承压力分布特征,采用数值模拟分析了工作面围岩应力分布规律,并根据冲击地压发生机理,预测出了巷道冲击地压发生危险区。在高冲击危险区采取了大直径钻孔卸压和深孔卸压爆破两种防治措施,同时,又采用了以防冲让压锚杆为核心的防冲让压巷道支护技术。工业性试验效果表明:防冲让压支护技术有效解决了复杂开采条件下巷道冲击地压问题,保证了矿井安全高效生产。Aiming at the rock burst in roadway under the complex conditions in deep mine,theoretical research was carried out on the stope overlying strata structure,obtaining abutment pressure distribution characteristics of the working face; stress distribution characteristics of the working face surrounding rocks were ascertained with numerical simulation.Large-hole drilling and deep hole blasting were applied in the high rock burst risk area,and an anti-scour yield support technology was employed using anti-scour yieldable bolt. The industrial test showed that the technology effectively solved the rock burst problem for roadway under complex mining conditions and ensured the safe and efficient production.

关 键 词：冲击地压 支承压力 围岩应力 冲击危险区预测 让压支护 

分 类 号：TD353.6[矿业工程—矿井建设]