摘要
针对玉溪煤矿中央辅运大巷出现的严重变形破坏问题,采用了"锚网索+U型钢闭合环+底板注浆"联合支护方案。从现场勘查情况来看,新返修支护方案实现了对巷道围岩变形的有效控制。
In view of the serious deformation and damage of the central auxiliary haulage roadway in Yuxi Coal Mine, the combined support scheme of "Anchor Mesh Cable + U-shaped steel closed ring + base plate grouting" is adopted. According to the field investigation, the new support scheme can effectively control the deformation of surrounding rock.
作者
吴振芳
Wu Zhen-fang(Yuxi Coal Mine Co.,Ltd.,Shanxi Lanhua Sci-Tech Venture,Shanxi Qinshui 048200)
出处
《山东煤炭科技》
2019年第11期34-36,共3页
Shandong Coal Science and Technology
关键词
高应力
巷道
支护
high-stress
roadway
support