Method of Evaluating Dam Operation Safety Level Based on Improved Catastrophe Progression Method

WEI Bo-wen; ZHOU Ling-kai; XU Fu-gang

doi:10.11988/ckyyb.20220659

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Journal of Changjiang River Scientific Research Institute ›› 2023, Vol. 40 ›› Issue (11) : 168-174. DOI: 10.11988/ckyyb.20220659

Engineering Safety and Disaster Prevention

Method of Evaluating Dam Operation Safety Level Based on Improved Catastrophe Progression Method

WEI Bo-wen, ZHOU Ling-kai, XU Fu-gang

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Abstract

To enhance the objectivity of dam operation safety level evaluations and mitigate the influence of weight values of different monitoring effect evaluation indexes, we introduced an improved Catastrophe Progression Method. This method capitalizes on the advantage of not requiring the determination of weight values for index evaluation in assessing dam operation safety level. Additionally, we employed the entropy correction G2 method to enhance the index importance ranking process within the conventional Catastrophe Progression Method. By comprehensively considering the relative importance of each index from both subjective and objective perspectives, leveraging the essence of the G2 method and entropy method, this approach ensures a more scientifically grounded index ranking within the Catastrophe Progression Method framework, allowing it to best leverage its advantages. To validate the proposed method, it is applied to assess the safety level of a dam. The calculation results demonstrate that the method is simple, logical, and reliable, effectively determining the actual operational safety status of the dam. This outcome validates the effectiveness and practicality of the proposed method.

Key words

dam operation safety / entropy method / G2 method / Catastrophe progression method / monitoring data / fuzzy comprehensive diagnosis

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WEI Bo-wen, ZHOU Ling-kai, XU Fu-gang. Method of Evaluating Dam Operation Safety Level Based on Improved Catastrophe Progression Method[J]. Journal of Changjiang River Scientific Research Institute. 2023, 40(11): 168-174 https://doi.org/10.11988/ckyyb.20220659

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