关键词: 参数反演, 面板堆石坝, 竣工期, 应力应变

Abstract: Based on the geometric parameters of a concrete face rockfill dam as well as the topographic and geological data of surrounding hills, a 3D numerical model of the dam is established in this paper. And the range of viscoelastic-plastic parameters of rockfill, face slab and extruded side wall is preliminarily determined based on the engineering analogy method. Then, the uniform design method is used to design various schemes within the possible range of these viscoelastic-plastic parameters. Finally, the stress and strain of concrete face rockfill dam during its completion period are analyzed by intelligent optimization method based on integrated neural network and genetic algorithm, which provides an important basis for evaluating the stability and safety of the dam in later period.

Key words: parameter inversion, CFRD, completion period, stress-strain