基于AHP-熵权法耦合的含水层富水性评价研究  

Evaluation of aquifer water abundance based on AHP-entropy weight method

作　　者：唐李斌 吴基文[1] 毕尧山 翟晓荣[1] 胡儒 TANG Libin;WU Jiwen;BI Yaoshan;ZHAI Xiaorong;HU Ru(School of Earth and Environment,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学地球与环境学院,安徽淮南232001

出　　处：《中国矿业》2020年第12期147-152,共6页China Mining Magazine

基　　金：国家自然科学基金项目资助(编号:41272278);安徽高校自然科学重点项目资助(编号:KJ2017A073);安徽高校科研平台创新团队建设项目资助(编号:2016-2018-24)。

摘　　要：为了对影响徐庄煤矿7煤层开采的分界砂岩含水层富水性进行评价,选取了分界砂岩含水层厚度、砂岩粒度特征、岩芯采取率和断裂分维值作为影响分界砂岩含水层富水性的主控因素;选用层次分析法(AHP)确定了各项主控因素的主观权重,利用熵权法确定了各项主控因素的客观权重,通过AHP-熵权法耦合得到了各项主控因素的综合权重;应用ArcGIS软件建立了基于AHP-熵权法耦合的分界砂岩含水层富水性评价模型,将研究区分界砂岩含水层划分为强富水区、较强富水区、中等富水区、较弱富水区和弱富水区5个级别,研究区东部以强富水区、较强富水区和中等富水区为主,西部以较弱富水区和弱富水区为主,并采用钻孔漏失量数据、已知涌(突)水点的分布,对分界砂岩含水层富水性评价结果进行了验证分析,结果表明该模型的评价结果与实际相符合,为预测含水层富水性、防治顶板水害提供了有益参考。To evaluate the water abundance of the Boundary sandstone aquifer affecting the 7 coal seam in Xuzhuang coal mine,the thickness of aquifer,sandstone grain size,core drilling collecting rate and fractal dimension are selected as the main controlling factors affecting the water abundance of the boundary sandstone aquifer.Analytic hierarchy process(AHP)is used to determine the subjective weight of each main control factor.The entropy weight method is used to determine the objective weight of each main control factor.The comprehensive weight of main control factors is obtained by AHP-entropy weight method;the water abundance evaluation model of the boundary sandstone aquifer based on AHP-entropy weight method is established by using ArcGIS software.The study area is divided into five levels:stronger water-rich area,strong water-rich area,medium water-rich area,weak water-rich area and weaker water-rich area.The eastern part of the study area is dominated by stronger,strong and medium water-rich areas,while the west is dominated by weak and weaker water-rich areas.The results of borehole loss and the known water inrush points are used to verify the water abundance evaluation results of the boundary sandstone aquifer.The results show that the evaluation results of the model are consistent with the actual situation,which provides the useful references for predicting the water-rich aquifer and preventing water disaster in the roof.

关 键 词：层次分析法 熵权法 含水层富水性 富水性评价 

分 类 号：TD745[矿业工程—矿井通风与安全]