特大断面巷道锚杆支护技术的优化应用

Optimize Application of Roadway Bolting Technology on Large Section

漳村煤矿2203工作面小切眼设计断面呈矩形,宽7.5 m,高3.3 m,掘进面积24.75 m2,该矿采用SMG500号螺纹钢超高强锚杆支护技术,放大了锚杆排距,既满足了巷道的支护要求,又加快了巷道施工速度,取得了良好效果。

2203 face small cut design in rectangular cross - section of Zhangcun coal mine,width 7.5 m,high 3.3 m, boring area of 24.75 m2, the coal mine uses technology of No. SMG500 of ultra high strength steel bolting, to enlarge bolt pitch, both to meet the requirements of supporting the roadway, but also accelerated the rate of roadway construction, and achieved good results.