基于GIS技术的六盘水市矿山地质环境评价

Mine Geological Environmental Assessment Based on GIS Technology in Liupanshui City

六盘水市是贵州省最为重要的矿产资源开发利用地区之一,经过多年的大规模开采,引发了一系列采矿引起的地质环境问题。采用模糊层次综合评价的方法,在调查统计分析研究区地质环境基础及矿山地质环境问题的基础上,选取8个评价因子开展了基于GIS技术的矿山地质环境评价。根据评价结果,研究区地质环境指数介于1.00 2.83之间,采用自然间断点划分方法将评价结果划分为三个等级,相应的将研究区地质环境划分为严重区、较严重区和较轻微区三个区域。评价结果与实际调查结果吻合较好,可为该区域矿山地质环境治理工作提供借鉴。

Liupanshui city is one of the most important mineral resource development and utilization area of Guizhou province,years large scale mining has coursed series of geological environmental problems.By use fuzzy level comprehensible evaluation method,on the basis of investigate,statistics and analysis geological environmental foundation and mine geological environment of the target area,8 assessment factors are selected to do mine geological environmental assessment based on GIS technology.According to the result,the geological environmental factor is from 1.00 to 2.83 in the target area.By use natural breakpoint division method,the assessment results are divided into 3 class,so the geological environment of the target area are divided into severe area,critical area and general area.The assessment results are consistent with actual results,it will afford guidance for mine geological environment treatment in this area.