Analysis of Stress and Deformation of High Concrete Faced Rockfill Dam Based on Stage Loading
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Abstract:
The theory of nonlinear elastic K-G model was applied to analyze the stress and deformation of the concrete faced rockfill dam in Tianchi reservoir. The combination method of CAD drawings and program control was used to develop the model of the dam and foundation. The fault structures and bank slope change were considered in the model, and thus a more refined three-dimensional finite element model was obtained. The dam was simulated using the method of step-by-step loading, and the displacement formula of modified step-by-step loading was used to conduct three-dimensional finite element analysis of the stress and deformation during the completion period and under normal water level conditions. The effects of the fault structures on the stress and deformation of the high concrete faced rockfill dam were determined for the two working conditions.
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