房柱式采空区上覆煤层长壁式开采可行性技术研究  

Room-and-Pillar Mining Goaf Overlying Coal Seam Long-wall Mining of Feasibility Technical Studies

作　　者：邓天琳 DENG Tian-lin(Datong Coal Mine Group Limited Liability Company of the Design and R esearch,Datong 037003,China)

机构地区：[1]大同煤矿集团设计研究有限责任公司

出　　处：《煤炭技术》2019年第11期9-11,共3页Coal Technology

摘　　要：由于历史原因,精通兴旺煤业公司9#层8902工作面位于12#层房柱式采空区上方。结合同煤集团精通兴旺煤业公司9#层和12#层的采掘现状,预测12#层煤柱稳定性,用理论计算法估算12#层顶板最大冒落高度与裂隙带高度,为8902工作面长壁式蹬空开采可行性提供技术支持。Due to historical reasons,the No.8902 working face of No.9 strata,which belongs to Jingtong Xingwang coal company,is located above the No.12 strata′s room-and-pillar goaf.Combined with the status of coal mining in No.9 and No.12 strata,predicts the stability of No.12 coal pillar,estimates the maximum falling height and fracture zone height of No.12 coal seam roof by theoretical calculation method,and provides technical support for the feasibility of the long-wall overheadmining in the No.8902 working face.

关 键 词：房柱式 采空区 上覆煤层 长壁式开采 

分 类 号：TD823[矿业工程—煤矿开采]