基于AHP-熵权法赋权的水库降等报废评估模型研究

Research on reservoir degradation scrap assessment model based on AHP-entropy weight method empowerment

随着我国病险水库降等报废工作逐步实施,评估决策的可靠性问题得到广泛关注,而评估指标权重的确定是影响评估决策科学性、合理性的重要一环。为使评估结果更合理准确,本文基于层次分析法和熵权法对评估指标组合赋权,削弱了主观评价的随机性和客观评价的局限性。本文结合工程经济学理论,选择效益成本评估指标,构建效益成本评估指标体系,并构造基于AHP-熵权法组合赋权的水库降等报废决策评估模型。工程应用表明:评价指标体系与评价模型是科学合理和实用可行的,该模型的计算结果与水库降等报废评估结果相比,一致性也较好,因此该研究可为规范水库报废与降等评估提供理论依据。

The reliability problem of assessment decision-making has been widely concerned with the gradual implementation of degradation scrap work of dangerous reservoirs in China, and the determination of the assessment index weight is an important part of the scientific and rational assessment decision-making. The assessment index combination is empowered based on analytic hierarchy process and entropy weight method in the paper in order to make the assessment result more reasonable and accurate. The randomness of subjective evaluation and the limitation of objective evaluation are weakened. The theory of engineering economics is combined in the paper. The benefit-cost assessment indexes are selected to establish the benefit-cost evaluation index system. The assessment model of reservoir degradation scrap decision-making based on AHP-entropy weight method is constructed. The engineering application shows that the evaluation index system and evaluation model are scientific, reasonable, practical and feasible. The calculation results of the model are better consistent with the assessment results of reservoir degradation scrap so that the study can provide theoretical basis for standardizing reservoir scrap and degradation assessment.