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中文摘要：
针对传统桩承式加筋路堤应用中存在的问题,结合新型三向土工格栅高强度和刚度的特点,在桩顶设置连系梁并对格栅铺设工艺加以改进.通过数值模拟对改进前、后的桩承式加筋路堤的受力和位移进行对比分析.结果表明：相对于普通加筋,采用改进的桩承式加筋路堤模式可以减小路堤的不均匀沉降和侧向位移,提高格栅的利用效率,有效约束路基侧向位移,提高桩体协同工作能力,改善边桩受力.
英文摘要：
There are some deficiencies in geosynthetic-reinforced and pile-supported（GRPS） embankment.Considering the characteristics of the triaxial geogrid,the geogrid spreading technique was improved and the coupling beam on the top of the piles was set.Numerical simulations were employed to compare the improved GRPS with the ordinary through analyzing the stresses and the displacement.The results show that the improved GRPS can significantly reduce the total settlements,differential settlements and lateral displacement of embankment.It can also raise the efficiency of the geogrid,restrict the lateral displacement of the subgrade soil,and enhance the cooperative work capability of the piles to provide side piles a better forces state as well.
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