Risk evaluation of dam-break environmental impacts based on the set pair analysis and cloud model

Wei Ge (), Zongkun Li (), Wei Li, Meimei Wu, Juanjuan Li and Yipeng Pan
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Wei Ge: Zhengzhou University
Zongkun Li: Zhengzhou University
Wei Li: Zhengzhou Railway Vocational and Technical College
Meimei Wu: Zhengzhou University
Juanjuan Li: Water Resources and Hydropower Investigation, Design and Research Institute Co. Ltd. of Gansu Province
Yipeng Pan: Zhengzhou University

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2020, vol. 104, issue 2, No 23, 1653 pages

Abstract: Abstract Many dams have been constructed around the world. Compared with the potential losses of life and economy, the environmental impacts caused by dam breach were less analyzed. As a systematic theory, the set pair analysis method deals with both the certainty and uncertainty of a system or process as a whole. But when dealing with the analysis of environmental impacts with obvious uncertainty, the fuzziness feature of the indices was not considered comprehensively. Hence, this paper introduced the connection degree of set pair analysis in five grades, and the cloud model-based weight calculation method to improve the evaluation. The proposed method was applied to the case study of Qianping Reservoir, Henan Province, China, showing that the comprehensive environmental impacts caused by the potential dam breach were medium. The results of the study indicate that the proposed method is applicative and provides reliability for environmental impacts evaluation of dam breach.

Keywords: Environmental impacts; Dam breach; Set pair analysis; Cloud model; Risk evaluation (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (4)

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DOI: 10.1007/s11069-020-04237-9

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