摘要
加筋土常被视为一种复合材料,但是真正按照复合材料分析的却很少。由于土、筋的弹性模量相差很大,因此加筋土这种复合材料具有明显的各向异性特点;笔者在Duncan-Chang双曲线模型的基础上,建立了非线性的正交各向异性的计算模型,并应用于加筋土挡墙的三维有限元分析,其结果与模型试验基本吻合。
Reinforced earth is considered a kind of complex material, but it is scarcely treat ed as complex material is performed in analysis. The complex material has a visible property of anisotropy because of a great difference between the elastic modulus of soil and that of reinforcement. Based on the Duncan-Chang model, we propose a nonlinear anisotropic calculating model, which is used in analysing reinforced earth retaining wails by the 3-D finite element method. The analytical results are in good agreement with the tests.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
1993年第3期84-89,共6页
Journal of the China Railway Society
关键词
有限元分析
加筋土挡墙
各向异性
finite element analysis, reinforced earth retaining wall, anisotropy
