期刊论文

Zeng, G.(zengge6906@163.com)

中文

中南大学学报(自然科学版)

1672-7207

2010

41

3

1158-1164

湖南省自然科学基金资助项目（07jj6093）； 长沙理工大学公路工程省部共建重点实验室开放基金资助项目（kfj080109）；

本校为其他机构

在分析桩承式加筋垫层路堤的力学作用机理与地基承载力影响因素的基础上, 将地基承载力视为下承桩体复合地基承载力与加筋垫层及边坡土体压力作用所增加的承载力之和, 采用叠加法建立1种综合考虑基础刚度、置换率、垫层扩散作用、加筋拉力作用、边坡土体压力作用的地基承载力计算公式与验算方法. 研究结果表明: 桩承式加筋垫层路堤地基承载力随基础刚度的减小、置换率的提高、加筋层数的增加、垫层扩散作用的加强而提高, 筋材拉力对提高地基承载力起主要作用.

Based on the mechanic action mechanism and influence element of ground bearing capacity on pile-supported reinforced cushion embankment, considering synthetically foundation stiffness, rate of replacement, spreading action of cushion stress, pulling force of geogrid, earth suppress action of side slope, the calculation formula and inspection method were presented considering ground bearing capacity as pile compound foundation capacity under embankment and bearing capacity which is increased by reinforced cushion and earth suppress action of side slope on ground bearing capacity. The results sh...