安徽某金属矿区地质环境变权欧氏距离评价模型  

Evaluation Model of the Geological Environment of a Metal Mining Area in Anhui Province Based on Variable Weight Euclidean Distance

作　　者：周廷强[1] Zhou Tingqiang(School of Civil Engineering,Chongqing Three Gorges University,Chongqing 404100,China)

机构地区：[1]重庆三峡学院土木工程学院,重庆404100

出　　处：《金属矿山》2018年第7期179-182,共4页Metal Mine

基　　金：重庆市自然科学基金项目(编号:cstc2015jcyj A00022);重庆市教委基金项目(编号:KJ1601023)

摘　　要：以安徽某金属矿区为例,通过构建变权欧氏距离模型对该矿区地质环境进行了评价。通过在传统加权欧氏距离模型的基础上进行优化,分别以地质环境影响因子(植被覆盖率、矿尘爆炸指数、固废利用率、废气利用率、地面塌陷面积与开采面积比值、土地恢复治理率、废水利用率以及土地污染率)作为坐标轴,以Ⅰ级地质环境评价指标为坐标原点,计算了每个待评价单元相较于原点的变权欧氏距离,构建了符合矿山地质环境评价系统的变权欧氏距离模型,从而确立了矿区地质环境等级。研究表明:矿区地面塌陷面积与开采面积比值和土地恢复治理率是影响该矿区地质环境质量的主要指标,矿区2017年全年地质环境评价等级为II级,地质环境总体较差,需要进一步治理,评价结果与模糊综合指数法、灰色聚类法较接近,对于矿区地质环境治理有一定的借鉴价值。Taking a metal mining area of Anhui Province as the study example,the geological environment is evaluated by establishing variable weight euclidean distance model.Through the optimization of the classical weighted euclidean distance model,the influence factors of geological environment（vegetation coverage rate,dust explosion index,utilization ratio of solid waste,utilization rate of exhaust gas,ratio of surface collapse area and mining area,rate of land rehabilitation and management,utilization rate of waste water and land contamination rate）are taken as the coordinate axis respectively,and the Ilevel geological environment evaluation indexes is regarded as the coordinate origin respectively,the variable weight euclidean distances of each evaluation units to coordinate origin are calculated,so as to establish the variable weight euclidean distance model that is suitable for the geological environment evaluation system,therefore,the geological environment grade of the mining area is determined finally.The study results show that ratio of surface collapse area and mining area and rate of land rehabilitation and management are the main influence factors of geological environment quality of the mining area,the grade of geological environment of the mining area is grade II or III in 2017,which show that the geological environment quality is generally poor,it is necessary to take some relative treatment measures.The above evaluation results is basically consistent to the ones obtained by fuzzy synthetic index method and grey clustering method,besides that,it can also provide reliable reference for the treatment of geological environment of the mining area.

关 键 词：地质环境评价 变权欧氏距离 评价等级 生态修复 模糊综合指数法 灰色聚类法 

分 类 号：TD167[矿业工程—矿山地质测量]