岩土工程学报2013，Vol.35Issue(z1)：118-123,6.
桩承式路堤中土拱效应产生机理研究
3D FE analysis of arching in a piled embankment
摘要
Abstract
There is no a generally accepted approach for the design of piled embankments.A series of three-dimensional finite element analyses are presented to examine the performance of piled embankments.The analyses show that when h / s ≤ 0.5,there is virtually no effect of arching,when 0.5 ≤ h / s ≤ 1.5,there is an increasing evidence of arching,and when 1.5 ≤ h / s,full arching is observed.The ultimate stress on the subsoil (σs,ult) at the point of maximum arching normalized by γh ranges 20％ to 40 ％.关键词
桩承式路堤/土拱效应/数值模拟/荷载传递机理Key words
piled embankment/ soil arching effect/ numerical simulation/ load transfer mechanism分类
建筑与水利引用本文复制引用
庄妍,崔晓艳,刘汉龙..桩承式路堤中土拱效应产生机理研究[J].岩土工程学报,2013,35(z1):118-123,6.基金项目
国家自然科学基金高铁联合基金项目(U1134207) （U1134207）
国家自然科学基金青年项目(51108155) （51108155）
江苏省"333"计划资助项目(BRA2011146) （BRA2011146）
中国博士后科学基金面上资助项目(2012M511670) （2012M511670）
