摘要
为了揭示留巷巷道变形破坏机理,文中分析了留巷巷道围岩裂隙发育规律和围岩变形特征。针对分析结果提出了注浆加固方案,现场应用表明:注浆加固有效提高了围岩的完整性和强度,高预应力注浆锚索有效控制了留巷巷道进一步变形破坏。
In order to reveal the failure mechanism of retaining roadway deformation, the development law of surrounding rock fracture and the deformation characteristics of surrounding rock were analyzed. In view of the analysis results, the grouting reinforcement scheme was put forward. The field application showed that the integrity and the strength of the surrounding rock were improved effectively by the grouting reinforcement, and the high prestress grouting anchor cable could effectively control the further deformation and damage of the roadway.
作者
张泽飞
Zhang Zefei(Shanxi Tiandi Wangpo Mining Co.,Ltd.,Jincheng 048000,China)
出处
《矿山测量》
2018年第5期12-15,28,共5页
Mine Surveying
基金
国家重点研发计划(2017YFC0804205)
中煤科工集团科技创新面上项目(2018MS021)
关键词
动压巷道
巷道变形
注浆加固
锚杆支护
dynamic pressure roadway
roadway deformation
grouting reinforcement
bolt support