Analysis on the Simultaneous Mining of Close Coal Seams

In the production of coal mine,the mining of close coal seams is more common,two coal seams are minable in whole mining area,and the upper one is the thin coal seam,and the lower one is medium-thick coal seam or thick coal seam.And the seam 4 and seam 5 of Wangjiagou Coalmine of Liulin County in Shanxi Province belong to such kind of typical case.Through the Analysis,this paper points out that the simultaneous mining of the seam 4 and seam 5 is feasible.