碾压混凝土坝三维黏弹性分析模型研究  

Three dimensional viscoelastic model of RCCD

作　　者：顾冲时[1] 雷鹏[1] 李云[1] 黄光明[1] 方海挺[1] 

机构地区：[1]河海大学水利水电工程学院

出　　处：《岩土工程学报》2007年第8期1173-1177,共5页Chinese Journal of Geotechnical Engineering

基　　金：国家自然科学基金资助项目(50539010;50579010;50539030);国家科技支撑计划课题(2006BAC14B03);973计划课题(2002CB412707);水利部"948"项目(CT200612)

摘　　要：将碾压混凝土施工层面影响带视为横观各向同性体,应用复合材料力学分析理论,深入研究了碾压混凝土坝施工层面影响带的变化规律,提出了具有横观各向同性体性质的渐变规律分析模型,反演分析了反映层面渐变特性的相关参数;据此研究并提出了相应的碾压混凝土三维黏弹性分析模型。实例分析表明,提出的分析模型能较好地反映碾压混凝土施工层面影响带对坝体结构性态的影响。Construction interfaces of RCCD were assumed as transversely isotropic bodies. The mechanical analytic theory of compound materials was used to study the characteristics and rules of the variation of the construction interfaces. A model was proposed to analyze the above-mentioned problems of transversely isotropic bodies. The back-analysis for the parameters reflecting the gradual change characteristics of the construction interfaces was implemented. A three dimensional viscoelastic model was presented to analyze the behavior of RCCD. The analysis of an example indicates that the proposed model could reasonably describe the influence exerted by the construction interfaces of RCCD to the dam behavior.

关 键 词：碾压混凝土坝 横观各向同性层面 渐变规律 黏弹性分析模型 

分 类 号：TV642[水利工程—水利水电工程]