摘要
为提高煤炭采出率,减少巷道掘进量,在锦丘煤矿开采中实施沿空留巷技术,根据巷道硬顶软底的情况提出了沿空留巷支护方案,并通过数值模拟分析确定了巷道支护的具体参数,实践结果表明:留巷高度满足留巷要求,有效地控制了巷道围岩的变形,并且取得了很好的经济效益。
In order to improve the coal recovery rate and decrease roadway drivage, for implementation of gob-side roadway technology in Jinqiu Coal Mine, according to the circumstance of hard roof and soft floor of roadway, gobside roadway support scheme is proposed, and by numerical modeling analysis, the specific parameters of roadway support is determined. The practice results show that the height of the remained lane can satisfy the requirements for highly, effectively control the deformation of surrounding rock of roadway, and has achieved good economic benefits.
出处
《山东煤炭科技》
2018年第2期29-31,共3页
Shandong Coal Science and Technology
关键词
薄煤层
沿空留巷
thin coal seam gob-side roadway
