高档普采工作面托伪顶开采冒顶事故原因与防治措施  

Roof Fall Accident Cause and Cure Measures in Top Grade Average Coal Mining Face with False Top Mining

作　　者：吴谦[1] 

机构地区：[1]鸡西矿业集团公司平岗煤矿,黑龙江鸡西158105

出　　处：《煤炭技术》2007年第4期56-57,共2页Coal Technology

摘　　要：伪顶是在煤层与直接顶之间存在的极易垮落的软弱岩层,在井下采煤工作面回采时,会常常遇到。由于其稳定性差、维护困难,经常造成工作面顶板冒落,给顶板管理带来了很大困难。通过对平岗煤矿5#煤在托伪顶回采时发生的局部冒顶事故原因的分析,提出了解决该问题的防治措施。The false top is that the existence pole exchanges weak caving rock stratum between the coal seam and direct top, In the coal mining, it may often happen. Defend is difficult since its stability is bad, often bring face roof fall, the roof management is very difficult. Part roof fall accident cause is analyzed in flase top mining in No. 5 Coal Seam of Pinggang Coal Mine. The prevention and cure measures are pointed out.

关 键 词：托伪顶 回采 冒顶 

分 类 号：TD327[矿业工程—矿井建设]