A comprehensive evaluation method study for dam safety

Fan Jia , Meng Yang , Bingrui Liu , Jianlei Wang , Jiaorong Gao , Huaizhi Su , Erfeng Zhao

Abstract

According to the multi-index system of dam safety assessment and the standard of safety, a comprehensive evaluation model for dam safety based on a cloud model is established to determine the basic probability assignment of the Dempster-Shafer theory. The Dempster-Shafer theory is improved to solve the high conflict problems via fusion calculation. Compared with the traditional Dempster-Shafer theory, the application is more extensive and the result is more reasonable. The uncertainty model of dam safety multi-index comprehensive evaluation is applied according to the two theories above. The rationality and feasibility of the model are verified through application to the safety evaluation of a practical arch dam.

Key Words

dam safety; comprehensive evaluation; cloud model; Dempster-Shafer theory

Address

Fan Jia, Meng Yang, Huaizhi Su and Erfeng Zhao — State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China /College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China /National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Nanjing 210098, China
Jianlei Wang — State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China /College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
Bingrui Liu — College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
Jiaorong Gao — Engineering Training Center, Hohai University, Nanjing 210098, China

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