强力支护系统在浅埋煤层开切眼中的应用

Application of High-strength Supporting System in Open off Cut of Shallow Buried Coal Seam

针对贵州宏达煤矿第一开采水平上部采区煤层埋藏浅、顶板破碎且不完整、矿山压力大、且易受地表水影响等问题,对过去开切眼支护方式及破坏机理进行分析。采用新的施工方案。改进后的施工设计方案有效地控制了在施工和综采设备安装期间开切眼围岩的变形破坏,在一定程度上有效地保证了矿井的安全生产。

According to shallow buried, roof broken and incomplete, mine pressure, and easy to be influenced by surface water in the first mining level upper mining coal seam in the Guizhou Hongda coal mine, analyzed the supporting mode and failure mechanism of open off cut in the past. Now the new method is applied. Then the improved construction design scheme have effectively controlled the deformation and damage of the open off cut surrounding rock during construction and fully mechanized coal mining equipment installation, and effectively ensured the safe production of the mine to a certain extent.