针对上覆煤岩体应力分布与火区成因垮落空间特性关联研究的不足,以义马集团耿村煤矿12230高应力工作面为研究背景,基于Cantilever理论,分析了三区应力下的不同碎胀特性,可知低应力区由于受到邻近工作面煤壁上覆岩层悬臂梁结构限制作用,煤体压实程度松散,漏风通道多,供氧充足,是封闭采空区煤自燃的关键区域。 Aiming at the shortage of the research on the relationship between the stress distribution of overburden rock mass and the spatial characteristics of caving area causation, taking 12230 high stress caving face of Gengcun coal mine in Yima Group as the research background, based on Cantilever theory, It can be seen that the low-stress zone is restricted by the cantilever structure of the overlying coal seam in the adjacent working face, the compaction degree of the coal body is loose, the air leakage passage is large and the oxygen supply is sufficient, which is a key area for the spontaneous combustion of coal in a closed goaf.