基于层次分析和灰色关联分析的煤与瓦斯突出危险等级评价

Evaluation of Coal and Gas Outburst Hazard Grade Based on Analytic Hierarchy Process and Gray Relational Analysis

建立了煤与瓦斯突出危险程度多因素指标的评价模型,利用层次分析法确定了指标权重,在此基础上利用灰色关联分析法求出突出样本与各危险等级参考样本的贴近度,按最大贴近度确定参评样本的危险等级。实证分析表明将层次分析和灰色关联分析相结合得出的危险等级评价与煤层的实际情况较符合,有一定借鉴意义。

The evaluation index of coal and gas outburst danger degree is established. The weight of index is determined by analytic hi-erarchy process. On this basis, gray relational analysis method is used to obtain the close degree of the outstanding samples and the ref-erence samples of hazard grades, According to the maximum closeness to determine the risk level evaluation sample. The empirical a-nalysis shows that the combination of AHP and gray relational analysis is in good agreement with the actual situation of coal seam, and has certain reference significance.