摘要
为了对工作面顶板水害危险性进行定量化评价,从顶板含水层水文地质、沉积、构造条件和疏放水措施4个方面选取了11项指标,构建了顶板水害危险性评价指标体系和危险性等级评判标准,利用AHP法确定了各评价指标的权重向量。并以宁东煤田红柳煤矿首采工作面为例,采用TOPSIS法分析贴近度并计算工作面顶板水害危险性等级,评价结果为安全,工作面已实现安全回采,分析结果与实际情况一致。基于工作面地质条件和疏放水措施的水害危险性定量化评价指标体系和AHP-TOPSIS法较全面地考虑了影响顶板水害发生的因素,避免了单一因素的局限性,确定的指标权重具有客观性,评价结果科学合理,可以作为工作面回采前安全性评价的参考依据。
In order to quantitatively evaluate the risk of roof water hazard, eleven indicators were selected from four aspects including hydrogeology, sedimentation, tectonic setting and water drainage measures of roof aquifer, and the index system and hazard assessment index of roof water hazard were constructed using AHP method to determine the weight vector of each evaluation index. Taking the first mining face of a mine in Ningdong Coalfield as an example, TOPSIS method was used to analyze the closeness and calculate the hazard level of roof water hazard. The evaluation result was ＂safe＂, wchih was consistent with the actual situation. Based on the quantitative evaluation index system of water hazard and the AHP - TOPSIS method, the factors influencing the roof water damage are comprehensively considered, the limitations of single factor are avoided, and the weight of the index is objective, the evaluation result is scientific and reasonable, which can offer reference basis for the safety evaluation before working face mining.
出处
《煤炭工程》
北大核心
2017年第12期111-115,共5页
Coal Engineering
基金
国家重点研发计划项目(2016YFC0501104
2016YFC0600708)
中煤科工集团西安研究院面上项目(2016XAYMS10)
