摘要
针对镇城底矿28620工作面运输顺槽软岩巷道的支护与加固存在的问题,在巷道开挖初期,及时采用两次锚喷与锚索联合支护的方式加固巷道。现场监测结果表明,在一次锚喷加固巷道完成后的15 d进行巷道二次喷涂可以有效控制软岩巷道围岩的变形问题,保证了巷道围岩的稳定性和断面的完整性。
In view of the problem of support and reinforcement of the soft rock tunnel in the tunnel of 28620 working face of Zhenchengdi,in the early stage of the tunnel excavation,the tunnel is reinforced by the combination of two anchor spray and anchor cable in time.The on-site monitoring results show that the deformation of the surrounding rock in the soft rock tunnel can be effectively controlled by the secondary spraying of the roadway after the completion of the one-time anchor injection reinforcing tunnel,and the stability of the surrounding rock and the integrity of the section are guaranteed.
作者
姚旭峰
Yao Xufeng(Zhenchengdi Mine,Xishan Coal and Power Group Co.,Ltd.,Gujiao Shanxi 030203)
出处
《机械管理开发》
2019年第8期173-174,共2页
Mechanical Management and Development
关键词
软言巷道
锚喷
联合支护
二次加固技术
矿压
soft word roadway
anchor spraying
joint support
secondary reinforcement technology
mine pressure
