期刊
SENSORS
卷 20, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/s20092648
关键词
dam engineering; evidence theory; interval-valued intuitionistic fuzzy set; multi-source information fusion
资金
- National Key R&D program of China [2018YFC1508603,2016YFC0401601]
- National Natural Science Foundation of China [51579086,51739003]
Considering the multi-sources, heterogeneity and complexity of dam safety assessment, a dam safety assessment model based on interval-valued intuitionistic fuzzy set and evidence theory is proposed to perform dam safety reliability evaluations. In the proposed model, the dynamic reliability based on the supporting degree is applied to modify the data from homologous information. The interval-valued intuitionistic fuzzy set is used to describing the uncertainty and fuzziness between heterogeneous information. Evidence theory is employed to integrate the data from heterogeneous information. Finally, a multiple-arch dam undergoing structural reinforcement is taken as an example. The evaluation result before reinforcement shows that the safety degree of the dam is low and the potential risk is more likely to be located at the dam section #13. From the geological survey before reinforcement, there exist weak fracture zone and broken mud belt in the foundation of the dam section #13. The comparison between the evaluation results before and after reinforcement indicates that the dam become safer and more stable after reinforcement.
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