A Comprehensive Evaluation Model of Dam Failure Consequences Based on Combined Weighted Cloud Model
Fangjin Xiong · IOP Conference Series Earth and Environmental Science · 2020
Abstract In order to solve the uncertainty and fuzziness of various factors, the cloud model theory is introduced to establish evaluation indexes from four aspects of life loss, economic loss, social impact and environmental impact. AHP and grey correlation method are applied to subjective and objective weight respectively, and a combination weight based on cloud model is proposed the evaluation model of dam break consequence. According to the evaluation index system and evaluation standard of dam breach, the cloud model parameters of different accident levels under the evaluation index are determined in the model; the combined weight of each index is calculated based on AHP and correlation degree method, and the comprehensive evaluation model of dam breach consequences is constructed. Taking five reservoirs in Jiangxi Province as an example, the results show that the model is effective and feasible, which provides a new way for the comprehensive evaluation of the consequences of dam break.