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针对孤岛工作面采空区遗煤自然发火的危害性,通过建立自然发火危险性评价模型进行分析。首先建立了评价指标体系,构建了指标权值的递阶层次结构示意图。再通过确定评判指标权重,构造出了层次判断矩阵。运用层次分析法和采空区自然发火危险度的指标体系与评价模型对孤岛采空区自然发火危险性进行评估。得出了某煤矿1302工作面孤岛采空区自然发火危险隶属度和自然发火危险度,对该煤矿的防灭火体系研究具有重要意义。
Aiming at the danger of spontaneous combustion of coal left in the gob of the islanded working face, the model of risk assessment of spontaneous combustion was established. Firstly, the evaluation index system is established, and the hierarchical structure of the index weights is constructed. Then by determining the weight of the index, we construct a hierarchical judgment matrix. The risk assessment of spontaneous combustion in gob-area gully area was evaluated by using AHP and index system and risk assessment model of spontaneous combustion in goaf. It is concluded that there is danger membership of spontaneous combustion and risk of spontaneous combustion in gob of 1302 coal mining face and is of great significance to the study of fire extinguishing system in this coal mine.