Except for the stiffened platform effect of geogrid-reinforced cushion,the soil arching effect of embankment also has an effect on the stress adjustment between pile and soil.

• 桩土应力比是桩土应力调整结果的直接表现,而路堤土拱效应以及褥垫层刚性承台效应对荷载调整作用正是桩土应力调整过程的体现。