摘要
某矿31041工作面上、下付巷为三软不稳定煤巷,原支护采取36U型钢支架支护,巷道变形严重。通过数值模拟分析了煤层厚度及倾角对巷道围岩稳定性的影响,针对性的采取棚索协同支护后,支护效果良好,围岩变形得到有效控制。
The entries of 31041 working face is three soft unstable coal, the original support is the 36 U type steel support, the roadway deformation is serious. The influence of thickness and dip angle of coal seam on stability of surrounding rock is analyzed by numerical simulation, after used the shed and bolt support, the support effect is good and the surrounding rock deformation can be effectively controlled by the support of the tent.
出处
《山东煤炭科技》
2015年第11期42-44,共3页
Shandong Coal Science and Technology
关键词
三软不稳定
数值模拟
围岩稳定性
棚索协同
three soft unstable
numerical simulation
stability of surrounding rock
shed and bolt together
