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Prioritization of hydroelectric power plant earth dam safety procedures: a multi-criteria approach

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Abstract

The number of procedures focused on dam safety is very large, mainly due to the rules established by different regulatory bodies, the guidelines that are part of the recommended best practices for engineering works, and the common sense and conservatism present in dam operation and maintenance because of the large socioeconomic and environmental impacts that any incident with a dam can cause. In practice, the vulnerability of a dam is inversely proportional to the improvement of safety procedures, such as monitoring and sensing, and the staff’s capacity to interpret the information in timely fashion. Therefore, establishing priorities for these procedures is essential for the plant management to define the scheduling and detailing of inspections and monitoring, as well as training needs. The MCDA model described here was specified based on regulations and practical public domain guidelines. The subjective estimation of preferences was done by the staff of a hydroelectric plant located in central Brazil. It employed the Simos method combined with a procedure adopted to convert the scores to the format of paired comparisons. The weights for dam safety procedures were obtained using the fuzzy AHP method. The method allowed obtaining the classification of safety procedures according to their priorities, and thus provided the plant management with elements to better schedule monitoring and staff training.

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The field research received financial support from Corumbá Concessões S/A and Agência Nacional de Energia Elétrica under the R&D Project PD-02262-0017/2019.

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Correspondence to José Roberto Ribas.

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Ribas, J.R., Severo, J.C.R., Felix, L.C.G. et al. Prioritization of hydroelectric power plant earth dam safety procedures: a multi-criteria approach. Environ Earth Sci 80, 815 (2021). https://doi.org/10.1007/s12665-021-10096-9

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  • DOI: https://doi.org/10.1007/s12665-021-10096-9

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