煤矿近距离煤层同采回采巷道超前支护设计

Design of Over-Support for Coal Mine near Seam Co-Mining Return Roadway

考虑到近距离煤层同采时,要保证巷道在受到采掘活动影响后仍能维持其巷道的相对稳定,以山西某煤矿二叠系1号煤层以及3号煤层为研究对象,根据应用侧向支承压力影响范围的计算方式,深入分析了煤矿近距离煤层同采时的回采巷道的超前支护关键参数大小以及需要加强的支护范围。

In view of the need to ensure the relative stability of the roadway after the influence of mining activities,the Permian No.1 coal seam and No.3 coal seam in a coal mine in Shanxi Province were taken as the research objects,and the size of the key parameters of the overrun support and the range of support to be strengthened for the return roadway in the coal mine during the close coal seam co-mining were analysed in depth according to the application of the lateral support pressure influence range calculation.