关键词: 突出煤层群, 保护层, 突出危险性, 双重叠加保护

Abstract: Combing the actual mining situations of coal seams group of the Yushe middle well of Gemudi mining area,the methods are discussed so as to eliminate the outburst dangers of coal seam from the perspective of the mining protection coal layers.The research results show that,the upper protection coal seams and lower protection coal seams are unable to relief the pressure of the central minable seams fully.The K₉ and K₄₀ coal seam are taken as the protection coal seams so as to conduct the double stack protection of the middle coal seams and eliminate the outburst coal seams dangers by mining at the same time.

Key words: Outburst coals seams group, Protection coal seams, Outburst dangers, Double stack protection