坝面溢流式面板堆石坝有限元计算与分析

Stress and Deformation Calculation and Analysis of Overflow CFRD by Finite Element Method

通过用邓肯～张E～B模型，对岗曲河面板堆石坝在竣工期、蓄水期和泄水期进行了非线性有限元仿真计算，特别考虑了坝上溢洪道在泄水期，泄水水流对坝体应力和变形的影响，研究了大坝在三种工况下的应力变形特点及分布规律。计算结果分析表明，坝体竣工期、蓄水期的应力应变符合一般规律，泄水期的应力与竣工期、蓄水期相比有所减小，变形相差不是很大。

Stress and deformation of Gangquhe CFRD was calculated with the nonlinear finite element method based on the Duncan-Chang E-B model in the completion storage and discharging periods. The results indicate that stress and deformation of the dam in the discharging period is not larger than another.