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介绍了厚煤层分层开采时 ,在下分层回采巷道顶部充填凝胶解决假顶漏风和上分层采空区遗煤自燃的有效方法 ,侧重介绍凝胶充填堵漏风原理、凝胶液的配制、钻孔布置、注胶工艺及注胶效果
This paper introduces the effective method of filling the top of the lower stratified mining roadway with the gel to solve the air leakage and the spontaneous combustion of the coal during the stratified mining of thick coal seams in the stratified mining of the thick coal seam. Emphasis is put on the principle of gel filling plugging wind, Preparation, drilling layout, injection process and plastic injection effect