综采放顶煤采煤法在国外已有多年的应用历史,80年代初我国煤炭生产行业也逐步引进了此种采煤法,先后在沈阳、华亭、梅河等局矿试用,此种采煤法的试验应用较大地提高了劳动生产率。但由于放顶煤采煤法一次采高较大,造成工作面推进速度慢,采空区丢煤较多且空间大冒落不实,采空区漏风较严重,为煤炭自然发火提供了有利的条件。如蒲河、华亭矿都因工作面后方采空区煤炭的自燃而封闭过工 The fully mechanized top coal caving mining method has been applied for many years in foreign countries. In the early 1980s, China’s coal mining industry gradually introduced such mining method, which was successively piloted in Shenyang, Huating, Meihe and other local mining mines. The experimental application of law has greatly increased labor productivity. However, due to the large caving height of the caving coal mining method, the working face is slowed down, more coal is lost in the gob area and the space is not grounded. The air leakage in the gob area is more serious, which provides favorable conditions for spontaneous combustion of coal conditions of. Such as Puhe, Huating mine are due to the face of the rear spontaneous combustion of mined-out area and closed work