title: Variable-intercept panel model for deformation zoning of a super-high arch dam.
abstract: This study determines dam deformation similarity indexes based on an analysis of deformation zoning features and panel data clustering theory, with comprehensive consideration to the actual deformation law of super-high arch dams and the spatial-temporal features of dam deformation. Measurement methods of these indexes are studied. Based on the established deformation similarity criteria, the principle used to determine the number of dam deformation zones is constructed through entropy weight method. This study proposes the deformation zoning method for super-high arch dams and the implementation steps, analyzes the effect of special influencing factors of different dam zones on the deformation, introduces dummy variables that represent the special effect of dam deformation, and establishes a variable-intercept panel model for deformation zoning of super-high arch dams. Based on different patterns of the special effect in the variable-intercept panel model, two panel analysis models were established to monitor fixed and random effects of dam deformation. Hausman test method of model selection and model effectiveness assessment method are discussed. Finally, the effectiveness of established models is verified through a case study.
authors.affiliation: State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098 China ; National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing, 210098 China ; College of Water-Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098 China.
authors.forename: Zhongwen
authors.initials: Z
authors.lastname: Shi
authors.affiliation: State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098 China ; National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing, 210098 China ; College of Water-Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098 China.
authors.forename: Chongshi
authors.initials: C
authors.lastname: Gu
authors.affiliation: State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098 China ; National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing, 210098 China ; College of Water-Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098 China.
authors.forename: Dong
authors.initials: D
authors.lastname: Qin
keywords: Deformation zoning; Similarity index; Super-high arch dam; Validity checking; Variable-intercept panel model