近距离煤层顺槽巷道斜拉悬吊支护研究

Research on the support of the slant in the roadway of coal seam

贺西煤矿3~#煤层与4~#煤层之间层间距为3.5~24m,受3~#煤层采空区和顶板矿压影响及层间距薄、岩性不稳定的影响,4~#煤层巷道顶板支护成为施工的重中之重。结合斜拉桥施工原理,探索采用斜拉锚索支护方式,保证了4~#煤巷道顶板支护的安全稳定。

There exists a layer space of 3.5 m to 24 m between 4# coal seam and 3%oal seam in Hexi coal mine. Affected by3# goal, roof ore pressure, thin layer spacing and lithological instability, the roof support of 4# roadway is the most important construction. According to the principle of cable-stayed bridge, cable-stayed cable support is explored to guarantee the safety and stability of the roof support of 4# coal roadways.