检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:刘广伟 LIU Guangwei(Cheji Coal Mine of Henan Longyu Energy Co.,Ltd,Yongcheng 476600,China)
机构地区:[1]河南龙宇能源股份有限公司车集煤矿,河南永城476600
出 处:《煤矿现代化》2024年第4期9-12,共4页Coal Mine Modernization
摘 要:为有效控制26轨道下山在大采深临近构造带附近时,受到地应力作用产生的巷道变形加剧现象,通过研究分析协同锚固理论,优化支护方案,增加巷道底板施工槽钢+注浆锚索的加固措施,实践表明:采取加固措施后,底板变形移近量为13.4 mm,相较于未采取底板加固措施的31.2 mm,减小17.8 mm的移近量,协同加固方案取得显著加固卸压效果。In order to effectively control the phenomenon of roadway deformation aggravation caused by earth stress when track 28 goes downhill near the structure belt at large mining depth,the collaborative anchoring theory is studied and analyzed,the support scheme is optimized,and reinforcement measures of tunnel floor construction channel steel+grouting anchor cable are added.Practice shows that:After the reinforcement measures are taken,the deformation displacement of the bottom plate is 13.4mm,which was 17.8mm less than the 31.2mm without the reinforcement measures,and the collaborative reinforcement scheme achieves remarkable reinforcement and pressure relief effect.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:3.17.4.144