基于集对分析与三角模糊数耦合的溃坝环境影响评价

针对溃坝环境影响因素众多且存在不确定性问题，综合考虑河道形态、水环境等7个溃坝环境影响因素，建立溃坝环境评价指标体系和等级划分标准。运用集对分析方法处理溃坝环境影响评价过程中的确定性和不确定性问题，为更全面表达集合间的同、异、反关系，将原有的三元联系数扩展为五元联系数，进一步结合三角模糊数理论描述其差异度分量系数，构建集对分析与三角模糊数耦合溃坝环境评价模型。选取沙河集水库为典型案例，运用模型对溃坝环境影响程度进行评价，并与集对分析和模糊数学法评价结果对比，验证了所构建的耦合评价模型的合理性和有效性，为溃坝环境影响评价提供了一种新的途径。

Comprehensive assessment of environmental impact of dam breach based on set pair analysis and triangular fuzzy number coupling method

This study mainly aims at the problem that there are numerous factors and uncertainties in dam breach environment. The index system and corresponding grade classification standards were established based on the comprehensive analysis of seven environmental factors of dam breach, such as channel morphology and water environment. Considering that set pair analysis deals with the certain and uncertain problems in the evaluation process well, in order to fully express the identity, difference and opposite relations among sets, the original connection number is extended to five element connection numbers and its difference component coefficient is further described in combination with triangular fuzzy number theory. Consequently, the model coupled with set pair analysis and triangular fuzzy number for assessing environment impact of dam breach was established. Taking Shaheji Reservoir dam as an example, the evaluation results of the established coupling model were compared with those of set pair analysis and fuzzy mathematics, which shows that the model is reasonable and effective, hence providing a new way for dam breach environmental impact assessment.