利用空巷作为回撤通道的综采工作面回撤实践

Practice of using abandoned roadway as retracement channel in fully-mechanized face

针对神华利民煤矿原采区的回采工艺为高档普采现状,技术改造后采用综合机械化采煤,采区上山位置由井田东部改到井田西部,工作面切眼位置也由井田西部移到东部,先掘切眼成为闲置巷道。工作面从东部向西部后退式回采,到停采线位置进行回撤,原有闲置切眼恰好处于此位置,为此采取技术安全措施,利用该空巷作为回撤通道。实践证明,该方法取得了较好的经济效益。

The original mining technology of Limin Coal Mine is general mechanized coal mining in Shenhua, and after technological transformation the technology becomes fully mechanized coal mining. The position of district raise moves from east to the west, and the open-off cut moves from west to east, so the original open-off cut becomes idle roadway. The work face adopts retreating mining from east to west, and when it achieves the stop line, the mining equipment retraces. Because of the original open-off cut in stop line position, so the Limin mine adopts technology and security measures, making use of abandoned roadway as retracement channel. Practice has proved that the method has achieved good economic results.