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为了研究采空区自然发火区域,以汾西润泰井矿正明煤业有限公司0402工作面为研究对象,运用离散元数值模拟软件和采空区采动裂隙场为机理,建立采空区走向与倾向2个不同位置的模型,对煤层开挖后的岩层裂隙发育规律进行数值模拟研究,通过分析岩层离层率突出区域,得出导通氧气与采空区遗煤的接触通道的采空区裂隙发育区,最终确定采空区易自然发火区域位于自然堆积区内的上下区段平巷区域附近。
In order to study the spontaneous combustion area of goaf, take 0402 working face of Zhengming Coal Mine Co., Ltd., Fenxi Run as the research object, using discrete element numerical simulation software and mining fissure field as the mechanism to establish the goaf direction And the tendency of two different positions of the model, after the coal seam excavation rock fracture development of numerical simulation study by analyzing the outburst of the rock formation out of the area, come to the oxygen and goaf of the coal mined contact passage of the goaf District fissure development zone, and ultimately determine the spontaneous combustion area of the gob area is located in the natural accumulation area near the upper and lower sections of the lane.