The Comprehensive Post-Evaluation Based on the Engineering Fuzzy Set Theory of Navigation and Hydropower Junction

Navigation and hydropower junction is a new model of inland river development. Such projects have significant economic, social and environmental benefits, and the corresponding indexes are quantitative and qualitative. Therefore the post-evaluation is a complex and multi-targeted semi-structural problem. The fuzzy set theory is applied on the comprehensive post-evaluation of navigation and hydropower junction of inland river. The recognition model based on multi-level fuzzy pattern and the semi-structured evaluation model are adopted. The evaluation is intuitive and comprehensive by combining the objective and quantitative assessments and the experience of the appraisers. And an example of Xiang River is given to illustrate its feasibility and rationality.