According to the size and form of vehicle loads, the settlement law of embankment under different dynamic parameters was analyzed using ABAQUS. The influence of embankment dynamic parameters and over-load condition to the embankment settlement were obtained. The results show that the influence level of dynamic parameters on embankment settlement is: elastic modulus, Poisson ratio and damping ratio. Among these strength parameters, the embankment settlement is insensitive to the internal friction angle, while it is sensitive to the cohesion. Under the over-load condition, the embankment settlement increases linearly with the increase in vehicle loads. In the condition of long-time vehicle load, the effect of density on embankment settlement is the most sensitive, followed by moisture content, while relevant influence of confining pressure on the embankment settlement deformation is small.%根据车辆荷载的作用大小及形式,应用ABAQUS软件开展不同动力参数下路堤沉降规律数值分析,得到压实黄土路堤动力参数及车辆超载情况对路堤沉降变形的影响规律.研究结果表明:压实黄土动力特性指标对路堤沉降变形影响大小依次为:弹性模量、泊松比和阻尼比;在强度指标中,内摩擦角对路堤沉降变形影响不敏感,而黏聚力较敏感;超载条件下,随着车辆荷载的增加,路堤沉降近似线性增加;路堤在行车荷载长期反复作用下,干密度对路堤沉降变形影响的最敏感,其次是含水率,固结压力对路堤沉降变形的影响相对较小.
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