CAJ | 학술논문

采用邓肯张E－B非线性弹性模型，利用自动剖分程序建立三维模型，对某100 m级高面板堆石坝进行三维有限元数值模拟计算，并选取合适的反映堆石料流变特性的本构模型分析了坝体的应力变形情况。结果表明：坝体的位移和应力分布规律基本合理，数值大小都在允许的范围内，但在堆石流变作用的影响下，坝体的应力变形明显增大，流变作用对坝体的影响不可忽略，本文为坝体的设计和施工提供支撑。
채용산긍장E－B비선성탄성모형，이용자동부분정서건립삼유모형，대모100 m급고면판퇴석패진행삼유유한원수치모의계산，병선취합괄적반영퇴석료류변특성적본구모형분석료패체적응력변형정황。결과표명：패체적위이화응력분포규률기본합리，수치대소도재윤허적범위내，단재퇴석류변작용적영향하，패체적응력변형명현증대，류변작용대패체적영향불가홀략，본문위패체적설계화시공제공지탱。
In order to study the influence of material properties on dam stress and deformation ,this paper established three‐di‐mensional solid models by applying Duncan‐Chang Model nonlinear elastic model with automatic mesh program ,the three‐di‐mensional finite element of a 100m high CFRD was numerically simulated ,and appropriate constitutive model that could reflect the rheological characteristics of materials was adopted to analyze the stress and deformation of the dam body .The result shows that dam displacement and distribution of stress is basically reasonable ,the numerical values are in a permitted range .But the stress and deformation of dam increases significantly under the influence of rheological effect ,which can't be neglected .This paper can be used as a reference for dam body design and construction .