Research on the evaluation of coal and gas outburst hazard based on AHP-GRA
XUE Haoyuan
CHEN Xuexi
HU Jiaying
Abstract：Coal and gas outbursts represent a major hazard in coal mining operations.To achieve a more scien-tific and objective assessment of outburst risk,this study developed a comprehensive evaluation model integra-ting the Analytic Hierarchy Process(AHP)with grey correlation analysis.The model first constructs a three- tier hierarchical structure comprising an objective layer,a criterion layer,and an indicator layer.Indicator weights are determined through expert scoring combined with consistency testing.Grey correlation analysis is then applied to quantify the association degree between each factor and the outburst hazard risk.Finally,a comprehensive evaluation model is formed through weighted summation.Using the No.3 coal seam at Xigou Coal Mine in Yangcheng County,Jincheng City,Shanxi Province as an empirical case,the model calculation in-dicates a comprehensive correlation degree of 0.5292 and a hazard risk level classified as"relatively safe,"which aligns with actual production assessment results.The study demonstrates that the combined model of AHP and grey correlation analysis effectively integrates the systematic nature of AHP in weight determination with the objectivity of grey correlation analysis in data evaluation.Through weighted synthesis,it achieves com-plementary advantages between subjective weights and objective correlation.The tiered control strategy based on evaluation results facilitates the optimized allocation of safety resources.This model framework provides a novel methodological reference for evaluating prominent hazards in coal mining enterprises.
Keywords：AHPGRAcoal and gas outburstevaluation
Publication Date：2026-02-28
Online Publishing Date：2026-03-12(First online date of this platform, not the publication date of the document)
Pages：8( 77-84 )