基于组合权重-TOPSIS法的矿井突水风险评价

Risk assessment of mine water inrush based on combined weights-TOPSIS method

矿井突水是威胁煤矿开采的重大隐患,通过定量化评价煤矿矿井底板突水危险性,能够及时预测煤矿水害严重程度,提高煤矿水害防治水平。本文以山东省济宁市某煤矿为例,根据影响矿井突水的各类主要指标,采用AHP法和熵权法组合赋权确定各指标权重,并基于TOPSIS逼近理想解排序法计算了山东省济宁市某矿井工作面的突水风险等级,评价结果与矿井实际情况也基本一致。该方法较为全面地考虑了影响煤层底板突水的各类风险因素,同时指标权重的确定综合考虑了专家主观经验和钻孔数据的客观规律,为矿井开采前的突水风险评价提供了参考依据。

Water inrush in coal mine is a major hidden danger threatening coal mine mining.Quantitative evaluation of water inrush risk in coal mine floor can predict the severity of water damage in time and improve the level of water damage prevention in coal mine.This paper takes a coal mine in Jining City,Shandong Province as an example.Based on the various main indicators that affect mine water inrush,the weights of each indicator are determined by combining the AHP method and entropy weight method.The TOPSIS approximation ideal solution ranking method is used to calculate the risk level of water inrush in the working face of a coal mine in Jining City,Shandong Province.The evaluation results are basically consistent with the actual situation of the mine.This method considers all kinds of risk factors affecting water inrush of coal seam floor comprehensively,and the determination of index weight comprehensively considers the subjective experience of experts and the objective law of drilling data.It provides a reference for the risk assessment of water inrush before mining.