围岩聚能爆破时突出危险煤层的状态改变,主要取决于爆破对瓦斯—煤热动力体系的冲击作用强度,而沖击作用强度又主要取决于药包参数、药包的相互布置,以及药包距煤层的距离。在阿尔错姆煤炭生产联合企业鲁勉采夫矿850m 水平开采布加乔夫煤层时,对聚能爆破防止煤与瓦斯突出这一方法做了 The state change of the coal seam which highlights the danger of coal seam during the blasting of surrounding rock mainly depends on the intensity of the impact of the blasting on the gas-coal thermal power system, and the strength of the impact depends on the parameters of the bag, the mutual arrangement of the bag and the medicine Distance from the coal seam. At the time of mining the Bugatouch coal seam at the 850m level at the Lu Mian Seifu Mine, a joint venture of Al-Kerm coal production, the method of poly-blasting to prevent coal and gas outburst was done