沿空巷道锚索补强加固支护技术分析

Analysis on Anchor Cable Reinforcement and Support Technology of Roadway along Goaf

针对沿空巷道变形大、巷道留设困难等问题,在试验巷道实施锚索补强加固支护方案,并对试验巷道变形进行监测。结果表明:巷道两帮移进量、顶板离层量、锚索平均受力峰值均得到有效削减,分别减少了19.0%、35.6%和10.2%,巷道围岩变形控制效果良好。

Aiming at the large deformation of roadway along goaf and the difficulty of roadway setting, the anchor cable reinforcement and support scheme is implemented in the test roadway, and the deformation of the test roadway is monitored. The results show that the displacement of the two sides of the roadway, the separation of the roof and the average peak stress of the anchor cable have been effectively reduced by 19.0%, 35.6% and 10.2% respectively, and the surrounding rock deformation control effect of the roadway is good.