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从固有危险源、诱发危险源和人的因素等三类危险源的角度,分析了瓦斯事故的复杂性及影响因素的多样性,构建了瓦斯危险源指标体系,并利用层次分析法与灰色关联分析获取指标权重。将灰色理论与模糊数学相结合,建立了基于灰色—模糊算法的瓦斯事故G—F(灰色—模糊)综合评价模型,对某矿井瓦斯异常区的危险性进行了评价,确定出事故发生的风险等级。实践表明:该模型能对瓦斯事故的危险性等级给出准确评价,可进一步完善瓦斯事故评价及预警工作。
From the perspectives of inherent hazards, induced hazards and human factors, the paper analyzes the complexity of gas accidents and the diversity of influencing factors, constructs the index system of gas hazards and makes use of analytic hierarchy process and gray correlation Analyze and obtain index weights. Combining gray theory with fuzzy mathematics, a G-F (gray-fuzzy) comprehensive evaluation model of gas accident based on gray-fuzzy algorithm is established, and the risk of gas anomalous zone in a mine is evaluated to determine the risk of the accident grade. Practice shows that this model can give an accurate assessment of the danger level of gas accidents and further improve the evaluation and early warning of gas accidents.