路堤荷载下刚性桩复合地基沉降计算研究

摘要

在对路堤荷载下刚性桩复合地基桩土变形特点进行分析的基础上,针对前人桩间土位移模式存在的不足,提出了改进的位移模式；对桩体和土体进行受力分析,建立了路堤荷载下刚性桩沉降计算方法,该方法能同时考虑桩土相对滑移的因素和土体变形的非同步性；算例分析表明了该方法的合理性与可行性.%Based on the study of pile and soil deformation characteristics, an improved displacement mode of soil between piles was presented by discussing the lack of current soil displacement modes. Considering both non-synchronous of soil deformation soil and piles-soil relative slip, a method for settlement calculation of rigid piles composite ground under embankment load was established by mechanical analysis of pile and soil. Finally, the method was used to analyze the practical engineering and was compared with the traditional methods. The results show that this method proposed here was feasible and reasonable.