龙滩碾压混凝土重力坝及其防渗面板的应力分析

摘要

采用可以描述岩体弹性和弹塑性变形的等效模型&多层结构模型,模拟碾压混凝土的应力应变关系,据此对龙滩碾压混凝土坝及防渗面板在3种工况下的受力状态进行了计算.计算结果表明,坝体及坝基内的应力分布合理,防渗面板工作状态良好.%An equivalent model,multilaminate framework model, describing both the elastic and elasto-plastic behaviours of rock mass, is applied in the stress analyses of roller-compacted concrete dams. It can be seen from the stress analyses of Longtan roller-compacted concrete dam and its impervious face-plate in three different working conditions using this model that the stress distribution in the dam and its foundation is reasonable, and that the impervious face-plate works well.