支护区冒顶巷道控顶修复技术研究与应用  

Research and Application of Roof-control Repair Technology for Roof-caving Roadway in Support Area

作　　者：李晓飞[1,2] 宋卫东 修国林 崔非非[3] LI Xiaofei;SONG Weidong;XIU Guolin;CUI Feifei(Shandong Gold Group Co.,Ltd,Jinan,Shandong 250000,China;School of Civil and Resources Engineering,University of Science and Technology Beijing,Beijing 100083,China;Emergency Management Department of Shandong Province,Jinan,Shandong 250000,China)

机构地区：[1]山东黄金集团有限公司,山东济南250000 [2]北京科技大学土木与资源工程学院,北京100000 [3]山东省应急管理厅,山东济南250000

出　　处：《矿业研究与开发》2021年第11期107-111,共5页Mining Research and Development

摘　　要：焦家金矿某巷道原采用U字钢+槽钢棚顶支护,因U字钢顶板及右帮出现不同程度冒落导致修复难度较大,针对支护区巷道冒顶破坏的原因,提出并通过试验对比,最终确定了菱形支护+发泡材料A、B配比1∶0.95充填控顶的技术方案。理论分析和现场工业试验证明,采用菱形支护+发泡材料A、B配比1∶0.95充填控顶技术有效控制了巷道顶板冒落,能够确保巷道在采动应力作用下的稳定。U-shaped steel and channel steel were used to support the roof of roadway in Jiaojia Gold Mine.It was difficult to repair due to the different degrees of caving at roof and one side using U-shaped steel.In view of the causes of roof caving failure of roadway in support area,the technical scheme of diamond support+foaming material(the ratio of foaming materials A to B is 1∶0.95)filling for roof control was put forward and finally determined through test comparison.Theoretical analysis and on-site industrial tests prove that the scheme of diamond support+foaming materials(A∶B=1∶0.95)filling for roof control effectively control the roof caving,which can ensure the stability of roadway under the action of mining stress.

关 键 词：岩石力学 菱形支护 发泡材料 稳定性 

分 类 号：TD327.23[矿业工程—矿井建设]