采空区挡水墙施工方法的探索与实践  

Exploration and Practice of Construction Method of Retaining Wall in Goaf

作　　者：曹士喜 范创 孔纯晶 CAO Shi-xi;FAN Chuang;KONG Chun-jing(Chaili Coal Mine of Shandong Energy Zaozhuang Mining Group,Zaozhuang 277519,China)

机构地区：[1]山东能源枣庄矿业集团柴里煤矿,枣庄277519

出　　处：《价值工程》2023年第14期97-99,共3页Value Engineering

摘　　要：柴里煤矿23614工作面处于断层两两切割形成的地堑内,工作面煤层与对盘奥灰含水层对接,地质及水文地质条件相对比较复杂。选用倒截锥形结构施工挡水墙,采取斜茬式剥帮、挑顶、卧底后锚网加固巷道,注浆封堵围岩裂隙,浇灌形成挡水墙,经实践证明,该方法安全可靠、施工简单,具有推广价值。The 23614 working face of Chaili Coal Mine is located in the graben formed by the cutting of faults in pairs,and the coal seam of the working face is jointed with the Ordovician limestone aquifer of the opposite wall,so the geological and hydrogeological conditions are relatively complicated.The inverted conical structure is used to construct the water retaining wall,and the inclined stubble type wall stripping,roof lifting and undercover back anchor net are adopted to strengthen the roadway,and the surrounding rock cracks are blocked by grouting to form the water retaining wall.The practice has proved that this method is safe,reliable,simple in construction and has popularization value.

关 键 词：挡水墙 剥帮、挑顶 注浆 混凝土浇灌 施工方法 

分 类 号：TD745[矿业工程—矿井通风与安全]