基于参数反演法面板堆石坝蓄水初期应力应变分析

Analysis of Stress-strain in the Initial Storage of CFRD Based on Parameter Inversion Method

根据水布垭面板堆石坝坝体几何参数和周围山体地形地质资料,建立面板堆石坝三维数值计算模型;根据工程类比方法初步确定堆石体、面板及挤压边墙粘弹塑性参数的取值范围,通过均匀设计方法对坝体材料粘弹塑性参数的可能取值范围进行方案设计,以集成神经网络和遗传算法的智能优化方法为手段,对面板堆石坝在蓄水初期应力应变进行分析计算,为面板堆石坝蓄水初期运行的稳定性与安全性作出合理的评价。

Based on the geometric parameters of the rockfill dam and the geological data of surrounding mountains,this paper establishes 3 d numerical calculation model of shuibuya CFRD,according to the engineering analogy method preliminarily determine extrusion side wall of the panel and the viscoelastic plasticity parameter value scope,through the uniform design method to the possible value range of dam material viscoelastic plasticity parameter to design scheme,by integrating neural network and genetic algorithm of intelligent optimization method as the method,the concrete face rockfill dam for the analysis of stress and strain at the beginning of water storage,water for concrete face rockfill dam in the early running stability and security,make reasonable evaluation.