岩土工程学报2013，Vol.35Issue(z1)：294-299,6.
桩承式路堤中加筋体工作机理研究
Reinforcement performance of piled embankments
摘要
Abstract
Finite element numerical simulation is conducted to investigate the behavior of piled embankment.It is found that the geogrid is capable of reducing the ultimate stress on the subsoil to zero.The maximum tension in the geogrid occurs at the corner of the pile cap.For the case with three layers of reinforcement distributed through the bottom of the embankment,the upper two layers share relatively little tension compared to the bottom layer.The sag of the reinforcement is very sensitive to the span of the geogrid between piles,but relatively insensitive to the stiffness of the geogrid.The conclusions drawn from the tests may provide valuable reference for the practice.关键词
桩承式路堤/三维数值模拟/桩土应力比/桩土差异沉降/土拱Key words
piled embankment/ three-dimensional simulation/ pile-subsoil stress ratio/ differential settlement/ soil arching分类
建筑与水利引用本文复制引用
庄妍,王康宇,刘汉龙..桩承式路堤中加筋体工作机理研究[J].岩土工程学报,2013,35(z1):294-299,6.基金项目
国家自然科学基金高铁联合基金项目(U1134207) （U1134207）
江苏省333项目(BRA2011146) （BRA2011146）
国家自然科学基金青年项目(51108155) （51108155）
江苏省博士后基金项目(1102070C) （1102070C）
