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:马树坤 周广飞 马晓辉 Ma Shu-kun;Zhou Guang-fei;Ma Xiao-hui(Zhaolou Coal Mine,Yancoal Heze Energy and Chemical Co.,Ltd.,Shandong Heze 274705)
机构地区:[1]兖煤菏泽能化有限公司赵楼煤矿综采二区,山东菏泽274705 [2]兖煤菏泽能化有限公司赵楼煤矿,山东菏泽274705
出 处:《山东煤炭科技》2020年第5期6-9,共4页Shandong Coal Science and Technology
摘 要:为了解决深井综放工作面沿空顺槽超前支护难题,分析沿空面侧向岩层结构及综放面沿空顺槽支架–围岩关系,建立确定沿空顺槽超前支护强度的力学模型,针对ZQ5200/21.5/45型超前液压支架的特征、工作阻力变化情况、沿空顺槽表面位移观测结果,验证了支架选型的合理性,可以有效控制沿空顺槽巷道围岩变形。In order to solve the problem of advance support along the goaf in the fully mechanized top coal caving face,the lateral rock structure along the goaf and the relationship between the support along the goaf and the surrounding rock in the fully mechanized top coal caving face are analyzed,and the mechanical model to determine the strength of advance support along the goaf is established,According to the characteristics of ZQ5200/21.5/45 type advance hydraulic support,the change of working resistance and the observation results of displacement along the gob,the rationality of support selection is verified,and the deformation of surrounding rock along the gob is effectively controlled.
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:18.191.209.202