粒料基层沥青路面结构非线性分析

Analysis on nonlinear constitutive model of aggregates base asphalt pavement

在分析国内外四种常用粒料基层材料非线性本构模型的基础上,提出一种新的的本构模型;运用该模型,对砂砾基层沥青路面的模量及应力、应变进行分析,给出模量取值;并将理论分析与室内试验的测试结果进行对比,结果表明路面垂直变形值和应力值与实测结果吻合度在85%以上,本模型与实际情况是相符的。

Through reference of four types the most common nonlinear constitutive models of aggregates base asphalt pavement, proposes a new constitutive model, and uses this model analyze modulus, stress and strain of gravel base asphalt pavement, and provides a modulus, contrasts the theory and the actual test results. Analysis results show the vertical deformation and stress value of pavement and the measured results coincide degrees in 85%, indicate this model is consistent with the actual situation.