西冯街煤矿条带开采方案设计及可行性研究  

Design and feasibility study of strip mining scheme in Xi Feng jie Mine

作　　者：郭朝雄 GUO Chaoxiong(Shanxi Yangcheng Yangtai Group Xifengjie Coal Industry Co.LTD,Jincheng 048100,China)

机构地区：[1]山西阳城阳泰集团西冯街煤业有限公司,山西阳城048100

出　　处：《煤矿现代化》2020年第6期43-45,48,共4页Coal Mine Modernization

摘　　要：针对西冯街煤矿5盘区地表建筑物密集,村庄下压煤量大等问题,通过理论计算、数值模拟、概率积分法对其条带开采方案进行设计,并进行可行性论证。结果表明,5盘区条带开采工作面设计采宽为58.5m、煤柱留设宽度为39m时,工作面回采率为60%,煤柱核区率超过65%,能够保持自身稳定并支撑顶板压力;回采后地表最大下沉量为176mm,倾斜变形为1.17mm/m,曲率变形为0.12×10-3/m,水平变形为0.58mm/m。Aiming at the problems of dense surface buildings in 3 panels of Xifeng Street Mine and large coal pressure in the village,the strip mining scheme was designed through theoretical calculation,numerical simulation,and probability integration method,and the feasibility demonstration was performed.The results show that when the designed mining width of the 3 panel strip mining face is 58.5m and the remaining width of the coal pillar is 39m,the mining face recovery rate is 60%and the coal pillar nuclear area rate exceeds 65%,which can maintain its own stability and support.Roof pressure;maximum surface subsidence after mining is 176mm,tilt deformation is 1.17mm/m,curvature deformation is 0.12×10-3/m,and horizontal deformation is 0.58mm/m.

关 键 词：条带开采 概率积分法 回采率 曲率变形 

分 类 号：TD822[矿业工程—煤矿开采]