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Improved Set Pair Analysis and Its Application to Environmental Impact Evaluation of Dam Break

1
School of Water Conservancy and Environment, Zhengzhou University, Zhengzhou 450001, China
2
Safety and Security Science Group (S3 G), Faculty of Technology, Policy and Management, Delft University of Technology, 2628 BX Delft, The Netherlands
3
Water Resources and Hydropower Investigation, Design and Research Institute Co., Ltd. of Gansu Province, Lanzhou 730000, China
*
Author to whom correspondence should be addressed.
Water 2019, 11(4), 821; https://doi.org/10.3390/w11040821
Received: 22 March 2019 / Revised: 11 April 2019 / Accepted: 16 April 2019 / Published: 19 April 2019
(This article belongs to the Special Issue Research on Mathematical Models of Floods)
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Abstract

Despite the rapid development of risk analysis in dam engineering, there is a relative absence of research on the environmental impact of dam break. As a systematic theory, set pair analysis has a good effect in dealing with uncertainties, although the result is relatively rough and easy to distort. A connection degree of five grades and a generalized set of potential are introduced to improve traditional set pair analysis. Combined with the index system, the evaluation model of the environmental impact of dam break is established, which is based on generalized set pair analysis. Taking Sheheji Reservoir dam as an example, a comparison of evaluation results of fuzzy mathematics theory and generalized set pair analysis is made, which verifies the scientificity and practicability of the method proposed in this paper. The results show that the evaluation grade of the environmental impact of dam break at Sheheji Reservoir is serious, and appropriate management measures should be taken to reduce the risk. View Full-Text
Keywords: risk evaluation; environmental impact; generalized set pair analysis; dam break risk evaluation; environmental impact; generalized set pair analysis; dam break
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Wu, M.; Ge, W.; Li, Z.; Wu, Z.; Zhang, H.; Li, J.; Pan, Y. Improved Set Pair Analysis and Its Application to Environmental Impact Evaluation of Dam Break. Water 2019, 11, 821.

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