尾矿库环境影响指标体系及评价方法及其应用

考虑到尾矿库事故对地质环境、自然环境和生态环境的破坏,建立了尾矿库环境影响评价指标体系,采用模糊综合层次分析模型对银山尾矿库进行了环境影响评价.该模型采用反映主观判断的模糊性和不确定性的模糊数据来构造判断矩阵,降低了专家的主观影响;采用多因素加权模型法来分层次计算评价的最终结果,并依据评价标准得出最后银山尾矿库对环境的影响程度为轻度影响.

Index system of environmental impact of tailings pond and application of assessment approach

Tailings pond’s accidences can bring in destroy on geological environment, natural environment and ecological environment. So an environment assessment index system of tailings pond is set up, and using fuzzy analytical hierarchy apprehensive model to appraise impacts of tailings pond on environment. In this model, the judgment matrix is constructed with fuzzy data so as to show the fuzziness and uncertainty of subjective judgment. So the influence of certain experts biased scoring might be reduced moderately. And multi-factor weighted model is adopted to calculate the last results. According to assessment standard environmental impact degree gained is slight influence.