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:魏文杰 时鹏程 倪志远 Wei Wenjie;Shi Pengcheng;Ni Zhiyuan(Zaokuang Group Gaozhuang Coal Industry Co.,Ltd.,Shandong Jining 277605)
机构地区:[1]枣矿集团高庄煤业有限公司,山东济宁277605
出 处:《山东煤炭科技》2023年第11期70-74,共5页Shandong Coal Science and Technology
摘 要:为了确保3_(下)303工作面材料巷超前沿空送巷围岩稳定,通过适当加大巷道净断面积、合理确定沿空小煤柱宽度以及分区域差异化支护巷道等多方面设计举措,最终成功为3_(下)303工作面安装回采节约了2个月时间,并确保了回采过程中材料巷的整体围岩稳定,保证了回采的安全顺利进行。In order to ensure the stability of the surrounding rock of the advance deliver roadway along goaf in the 3_(lower)303 working face material roadway,multi-faceted design optimization measures are taken,such as appropriately increasing the net sectional area of the roadway,reasonably determining the width of small coal pillars along the goaf,differentiated support roadway,and so on.Ultimately,the installation and mining of the 3_(lower)303 working face are successfully saved by 2 months,and the stability of the overall surrounding rock of the material roadway during the mining process is ensured,ensuring the safe and smooth progress of mining.
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:216.73.216.7