金达煤业三采区4号煤蹬空开采研究  

Study on No.4 Coal Mining in the Third Mining Area of Jinda Coal Industry

作　　者：陈杰 CHEN Jie(Shanxi Coal Transportation and Marketing Group Jinda Coal Industry Co.,Ltd.,Xiaoyi032300,China)

机构地区：[1]山西煤炭运销集团金达煤业有限公司,山西孝义032300

出　　处：《煤矿现代化》2021年第5期123-126,共4页Coal Mine Modernization

摘　　要：山西煤炭运销集团金达煤业4号煤层为可采煤层,由于9号煤的采出对上覆岩层及4号煤层的开采可能会造成影响,是否能够进行蹬空开采需要进一步的论证。为了解决该问题,采用理论计算、数值模拟及工程类比等方法研究9号煤层开采对其上覆岩层及4号煤层的扰动破坏情况。结果表明:9号煤开采之后,4号煤层底板未发生明显的塑性破坏,整体位移量比较小,对上层煤的开采影响不大,可使用上行开采方法。The No.4 coal seam of Jinda Coal Industry of Shanxi Coal Transportation and Marketing Group is a recoverable coal seam.Due to the mining of No.9 coal,it may affect the mining of overburden rock and No.4 coal seam,whether or not it can be used for empty mining requires further Argument.In order to solve this problem,the method of theoretical calculation,numerical simulation and engineering analogy was used to study the disturbance and damage of No.9 coal seam to its overlying rock layer and No.4 coal seam.The results show that after the mining of No.9 coal,there is no obvious plastic failure in the floor of No.4 coal seam,and the overall displacement is relatively small,which has little effect on the mining of upper coal.Up mining method can be used.

关 键 词：蹬空 数值模拟 上覆岩层 上行开采 

分 类 号：TD823.89[矿业工程—煤矿开采]