坚硬顶板型冲击矿压灾害防治研究  

Study of Prevention Methods of Rock Burst Disaster Caused by Hard Rock Roof

作　　者：牟宗龙[1] 窦林名[1] 张广文[2] 张士斌[2] 李志华[1] 张军[1] 

机构地区：[1]中国矿业大学能源与安全工程学院,江苏徐州221116 [2]兖州煤业股份有限公司济三煤矿,山东济宁272000

出　　处：《中国矿业大学学报》2006年第6期737-741,共5页Journal of China University of Mining & Technology

基　　金：国家自然科学基金项目(50474068;50490273;50074030);国家重点基础研究发展规划(973)项目(2005CB221504);高等学校博士学科点专项科研基金项目(20030290017)

摘　　要：针对兖州矿区济三煤矿6303工作面的冲击矿压问题,分析了冲击矿压发生的主要原因及影响因素．根据现场条件和数值模拟分析,提出了采用顶板爆破解除冲击矿压危险的技术措施,并确定了爆破参数．采用矿用钻孔窥视仪并配合电磁辐射法和钻屑法对爆破进行了效果检验．结果表明,通过顶板爆破措施可以破坏工作面上方坚硬厚层砂岩顶板的完整性,提前释放顶板聚集的弹性能,减弱和消除了工作面的冲击矿压危险性,保证了工作面的安全生产．现场实践证明,该项技术对具有坚硬顶板型冲击矿压的防治效果明显．Aiming at the rock burst disaster of No. 6303 working face in Jisan coal mine of Yanzhou coal group co. ltd, the state and reason of rock burst were analyzed. Based on the geological conditions and numerical simulation, the hard rock roof blasting method and blasting parameters were proposed to prevent rock burst. The blasting effect was checking using sight instrument, electromagnetic emission （EME） technique and drilling sludge methods. The re sults show that by this blasting method, the hard rock roof above the coal seam is destroyed and the elastic energy in rock roof was mostly released. The rock burst danger is reduced to guarantee the safety of working face. The practical application proves that this technique can effectively prevent the rock burst caused by hard rock roof.

关 键 词：冲击矿压 坚硬顶板 顶板爆破 钻孔窥视仪 电磁辐射 钻屑 

分 类 号：TD324[矿业工程—矿井建设]