薄基岩含泥岩夹层顶板9.5m宽切眼支护技术研究  

Research on the support technology of 9.5 meters cut-hole roof includes mudstone interbred and thin bedrock

作　　者：杨玉树 马占国[2,3] 赵国贞[2,3] 陆昭旭[2,3] 

机构地区：[1]蒙泰煤业有限责任公司不连沟煤矿,内蒙古自治区鄂尔多斯市010319 [2]中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏省徐州市221008 [3]中国矿业大学力学与建筑工程学院,江苏省徐州市221008

出　　处：《中国煤炭》2011年第8期46-49,共4页China Coal

基　　金：教育部新世纪优秀人才支持计划项目(NCET-08-0837);国家重点基础研究发展规划(973)项目(2007CB209400);国家自然科学基金重点项目(50834005;50834004);国家自然科学基金项目(51074163);江苏省自然科学基金(BK2009092);江苏省"青蓝工程"优秀青年骨干教师计划;国土资源部公益性项目(200811050);深部岩土力学与地下工程国家重点实验室专项基金

摘　　要：不连沟煤矿9.5 m宽切眼顶板含泥岩夹层并少量渗水,宽切眼顶板面临支护难题。分析了宽切眼上覆岩层结构和巷道围岩结构的稳定性,研究了薄基岩含泥岩夹层切眼顶板支护技术,提出了采用工字钢托梁、单体液压支柱及顶板打超前钎杆补强支护,并在切眼顶板中部大小断面接茬处对工字钢托梁进行搭接处理的支护设计方案。现场实测表明,该支护方案能有效控制9.5 m宽切眼围岩的变形。According to the complicated condition of the cut-hole roof including mudstone interbed and little seepage in Buliangou coal mine,the cut-hole roof was mainly faced the supporting problems,the stability of overlying cut-hole roadway＇s overlying strata structure and roadway surrounding rock structure were analysed,the support technology of roof includes mudstone interbed and thin bedrock were reserched.The roof reinforcement by use of I-shaped steel beam single prop and beat drill rod and by use of I-shaped steel beam of lap treatment design scheme at the middle of cut-hole section were put forward.By the site investigation,the deformation of cut-hole roadway surrounding rock is controlled.

关 键 词：薄基岩 含泥岩夹层 切眼支护 巷道支护 

分 类 号：TD353[矿业工程—矿井建设]