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:张丰涛 赫连腾 马小斌 Zhang Fengtao;He Lianteng;Ma Xiaobin(No.1 Coal Mine,Shaanxi Coal Industry Chemical Group Huangling Mining Industry Company,Huangling 727300,China;Shaanxi Chenghe Huayu Engineering Co.,Ltd.,Weinan 715299,China)
机构地区:[1]陕西煤业化工集团黄陵矿业公司一号煤矿,陕西黄陵727300 [2]陕西澄合华宇工程有限公司,陕西渭南715299
出 处:《山东煤炭科技》2025年第4期1-5,共5页Shandong Coal Science and Technology
摘 要:针对黄陵煤矿632半煤岩巷在快速掘进中支护困难、掘进效率不高的问题,采用现场实测的方式分析掘进效率的变化,通过成套设备的运用和支护技术的优化提升掘进效率。采用理论分析快速掘进下应力分布特征,通过顶板钻孔窥视分析围岩破碎情况。结果表明:顶板采用联合支护,快速掘进下应力分布主要在巷道处集中;两帮及顶板钻孔窥视图的分析可以看出,顶板的裂隙较少,主要是零星的纵向裂隙,这说明顶板的完整性较好;顶板及两帮的横纵向裂隙闭合现象较为明显,联合支护的方式在快速掘进扰动下较为契合,基本能够保证巷道的安全性和稳定性,对快速掘进与支护技术应用具有一定指导意义。Aiming at the problems of difficult support and low excavation efficiency in the rapid excavation of the 632 semi coal rock roadway in Huangling Coal Mine,the changes in excavation efficiency are analyzed through on-site actual measurement.The excavation efficiency is improved through the use of complete equipment and the improvement of support technology.Using theoretical analysis to analyze the stress distribution characteristics under rapid excavation,and analyzing the faulire situation of surrounding rock through roof borehole peeping.The results show that the roof adopts joint support,and the stress distribution under rapid excavation is mainly concentrated at the roadway;The analysis of the borehole peeping maps of the two sides and the roof shows that there are few fissures on the roof,mainly sporadic longitudinal fissures,indicating that the integrity of the roof is relatively good;The closure phenomenon of transverse and longitudinal fissures in the roof and the two sides is relatively obvious,and the joint support way is relatively suitable under rapid excavation disturbance,which can basically ensure the safety and stability of the roadway,and has certain guiding significance for the application of rapid excavation and support technology.
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