基于组合赋权的加权秩和比法的底板突水危险性评价  

Risk assessment of floor water inrush by weighted rank sum ratio based on combination weighting

作　　者：姚辉 尹尚先[1] 徐维 张润畦 蒋知廷 YAO Hui;YIN Shangxian;XU Wei;ZHANG Runqi;JIANG Zhiting(Hebei State Key Laboratory of Mine Disaster Prevention,North China Institute of Science and Technology,Beijing 101601,China;Beijing Shunjian Engineering Co.Ltd.,Beijing 101300,China)

机构地区：[1]华北科技学院河北省矿井灾害防治重点实验室,北京101601 [2]北京市顺建工程有限公司,北京101300

出　　处：《煤田地质与勘探》2022年第6期132-137,共6页Coal Geology & Exploration

基　　金：国家自然科学基金项目(51774136,51974126)。

摘　　要：煤层深部开采使得煤矿底板水害事故频发,传统突水危险性评价方法评价指标单一、评价结果偏离实际的弊端逐渐显露,造成众多新型评价方法涌现。以河北省华北型煤田东欢坨矿为研究对象,选取含水层性能、隔水层性能、地质条件、煤层条件的评价因素集,综合考虑10个评价因素,建立适用于东欢坨矿的底板突水危险性评价指标体系;利用层次分析法确定各指标主观权重,利用CRITIC法确定各指标客观权重,将2者耦合得到综合权重,兼顾专家主观经验与数据客观信息,保证权重确定的全面性;引入加权秩和比法,构建评价矩阵,依据指标对评价对象所产生的优劣性影响将其分为高优型指标和低优型指标,编秩计算WRSR值,对数据进行分档排序,确定安全、较安全、较危险、危险4个评价等级区间,形成评价模型;利用GIS强大的空间管理及信息处理功能,完成结果的信息展示;将评价结果与实际工程出水位置相比较,发现突水位置都在底板突水较危险区域,并与传统评价方法突水系数法相对比,证明评价模型有效。研究成果形成了煤层底板突水危险性评价新方法,丰富煤层底板突水危险性评价方法的种类,为煤矿防治水工作者提供新思路。Deep mining of the coal seam causes frequent water hazards in the coal mine floor.As the disadvantages of traditional water inrush risk assessment methods,such as single evaluation index and deviation of the evaluation results from reality are gradually revealed,many new assessment methods are emerging.In this paper,Donghuantuo Coal Mine,a North China type coalfield,in Hebei province is taken as the research object.The evaluation factor sets including aquifer capacity,aquifuge capacity,geological conditions and coal seam conditions are selected,and with ten evaluation factors being considered,a floor water inrush risk evaluation index system applicable to Donghuantuo Coal Mine is es-tablished.AHP and CRITIC methods are adopted to determine the subjective weight and objective weight of each index,and then the two parts are coupled to obtain the comprehensive weight.In the process,the subjective experience of ex-perts and objective data are taken into account to ensure the comprehensiveness of weight determination.By using the weighted rank sum ratio method,an evaluation matrix is constructed.And indexes are divided into high-optimality and low-optimality according to their impacts on the evaluation objects.By ranking and calculating the WRSR value,and sorting the data based on grades,an evaluation model is formed in which four evaluation levels are determined,includ-ing safe,safer,more dangerous and dangerous.The results are displayed by using powerful spatial management and in-formation processing function of GIS.By comparing the evaluation results with water outlet positions in the actual project,it is found that these positions are in the more dangerous area of floor water inrush.The effectiveness of the evaluation model is proved by comparing the new method with the traditional water inrush coefficient method.The re-search forms a new method for assessing the risk of water inrush from the coal seam floor,which enriches the existing assessment methods and provides a new thought for coal mine water control worke

关 键 词：底板突水 带压开采 加权秩和比法 组合赋权 

分 类 号：TD745[矿业工程—矿井通风与安全]