层次分析与模糊数学综合评价法在矿山环境评价中的应用

Application of AHP and fuzzy mathematics in comprehensive assessment of mine environment

采用遥感技术提取矿山环境评价因子,运用层次分析法与模糊数学法对三江成矿带南段矿山环境进行综合评价。层次分析法确定的矿山环境评价因子按权重排序,依次为植被覆盖率、土地利用、地形地貌、矿山地质灾害、水土流失和矿山开发占地;模糊数学法评价的区域矿山环境隶属第一等级"好"。通过GIS平台,按权重值对评价因子进行叠加、成图,实现了三江成矿带南段的矿山环境评价。层次分析与模糊数学综合评价法,不仅综合考虑矿山环境影响因子,且充分发挥了2种数学方法的优点,将动态与静态、定量与非定量等指标有机结合,发挥其因素和过程的模糊性,减少了专家人为评分的主观性,使评价结果更符合实际。

In this paper, we used the Analytic Hierarchy Process （AHP） and fuzzy mathematics to car ry out the comprehensive assessment of mine environment in the southern part of the Sanjiang metallogenic belt. The results show that the assessment factors of mine environment, defined by AHP and sorted according to weight values, are successively vegetation importance, land use, topography, mining geological hazards, soil erosion and mining development area. The comprehensive assessment results using fuzzy mathematics suggest that the regional mine environment can be classified into the first grade ＂good＂. The assessment factors were superimposed in the GIS platform to form diagrams based on their weight values, obtaining mine environment assessment data for mineral resources development zone in the south of the Sanjiang metallgoenic belt. Analytic Hierarchy Process （AHP） and fuzzy mathematics were em ployed to comprehensively assess regional mining environment, which considers not only the environmental impact factors of the mine but also the advantages of the two mathematical methods in the ways of dynamic and static, quantitative and non quantitative indicators. Therefore, this fuzziness of fac tots and process has not only reduced objectiveness of experts assessment, but made the assessment re suits more practical, providing references for mining supervision and environmental treatment of regional mines.