摘要
根据四川官帽舟水电站工程实况,建立了沥青混凝土心墙混合坝的三维非线性静力有限元分析模型,对大坝填筑和水库蓄水过程进行了仿真模拟,研究了坝体和沥青混凝土心墙在竣工期和蓄水期的应力变形特性。考虑实际施工影响,分析了坝体材料参数的敏感性。计算分析表明,符合100 m级堆石坝竣工期的沉降规律,坝体填料和心墙材料强度满足要求。
According to the actual engineering condition of Guan Maozhou Hydropower Station in Sichuan, the 3-D non-linear FEM static model of the dam with asphalt concrete core wall has been built. By emulating the process of the dam＇s filling and reservoir＇s impounding, the stress and deformation characteristics of the dam during its filling stage and impounding stage have been studied. Considering the actual construction influences,by changing the main deformation parameter of damming material, the sensitivity analysis of the controlled parameter of damming material has been done. According to computation and analysis, the settlement deformation in the filling stage is 463mm, about 0.43% of the maximal height of dam, besides, the deformation and stress accord with the general rules,the strength of the dam filler and the core wall material meet requirements, so the design in technology is rational.
出处
《水电能源科学》
2008年第2期72-75,共4页
Water Resources and Power
基金
国家科技支撑计划课题基金资助项目(2006BAC14B03)
关键词
沥青混凝土心墙混合坝
三维非线性有限元法
变形
应力
敏感性分析
composite dam with asphalt concrete core wall
3-D non-linear FEM
deformation
stress
sensitivity analysis
