Abstract: In the paper,based on the multi-layer elastic system theory and nonlinear material constitutive model of granular cushion,the resilient moduli of granular cushion is analysed.Simultaneously,the computing program is designed and programmed,which computes the resilient moduli of special points in granular cushion.In addtion,the contour of the resilient moduli are drew in granular cushion.Eventually,finite element program is employed to carry out the linear analysis and nonlinear analysis of semi-r...

Key words: granular cushion, flexible pavement, nonlinear property, modulus, FEM

摘要： 笔者在文中结合弹性层状体系理论和级配碎石垫层材料非线性本构模型关系，对级配碎石垫层弹性模量变 化规律进行了分析，编制了计算级配碎石垫层计算点弹性模量的程序，绘制了碎石垫层回弹模量等值线图，并利 用有限元软件对级配碎石垫层沥青路面进行线弹性有限元和非线性有限元分析

关键词: 级配碎石垫层, 柔性路面, 非线性, 模量, 有限元