煤层群上行开采对上覆煤层运移的影响  

The influence of ascending mining on the movement character of overlying coal seam in coal seams group

作　　者：张勇[1] 刘传安[1] 张西斌[1] 刘珂铭[1] 张胜凯[1] 赵光普[1] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083

出　　处：《煤炭学报》2011年第12期1990-1995,共6页Journal of China Coal Society

基　　金：国家重点基础研究发展计划(973)资助项目(2011CB201204);中央高校基本科研业务资助项目(2011YZ05)

摘　　要：综合运用理论计算、现场实践、UDEC数值模拟分析等方法对赵各庄煤矿煤层群上行开采选择不同首采厚度时上覆煤层的运移破坏特征及对上煤层瓦斯的卸压效果进行了分析,并结合现有开采技术条件,最终确定首先开采12号煤4 m顶分层,然后开采9号煤,最后利用放顶煤工艺开采12号煤的下分层是科学合理的开采方式。The movement and damage character and pressure relief effect on coal seam gas of the over strata were analyzed in ascending mining under different first mining thickness of the under seam in the short-distance coal seams group of Zhaogezhuang Coal Mine through theoretical calculations,field practice and UDEC numerical simulation.With existing mining conditions,the results show that first mining 4 m of the top layer of No.12 coal seam,then mining the No.9 coal,finally using top-caving technology mining the under layer of No.12 coal seam is a scientific and reasonable exploitation method.

关 键 词：煤层群 上行开采 煤层运移 放顶煤开采 

分 类 号：TD823.49[矿业工程—煤矿开采]