锚杆预应力对巷道支护效果的影响  

Effect of Bolt Prestress on Roadway Support Effect

作　　者：李政 Li Zheng(Xiqu Coal Mine of Xishan Coal and Electricity Group,Gujiao Shanxi 030200)

机构地区：[1]西山煤电西曲矿掘进二队,山西古交030200

出　　处：《机械管理开发》2020年第10期40-41,228,共3页Mechanical Management and Development

摘　　要：针对普通锚杆支护无法满足某些巷道的生产需求,以某矿12207工作面为例,在分析地质、顶底板情况的基础上,对其顶板和巷道的锚杆锚索支护参数进行设计,并阐述了锚杆锚索的施工工艺,最后对预应力锚杆的支护效果进行验证。In view of the fact that ordinary bolt support can not meet the actual production demand of some roadways,Based on the analysis of geology and roof and floor condition, the bolt support parameters of roof and roadway are designed, and the construction technology of anchor cable prestress is expounded. Finally, the support effect of anchor rod is verified.

关 键 词：预应力锚杆 锚索 顶板离层量 高强度锚杆 围岩控制 

分 类 号：TD353.6[矿业工程—矿井建设]