华中科技大学学报（自然科学版）2011，Vol.39Issue(3)：30-33,4.
考虑桩间土支撑的桩承式加筋路堤理论分析
Theoretical analysis of GRPS embankment with the consideration of the supporting effect of soil between piles
摘要
Abstract
Based on the geogrid pile and soil between piles collaborative working mechanism, a mechanical model of a goesynthetic-reinforced and pile-supported (GRPS) embankment was established.Limit equilibrium theory was employed to derive the expression of the earth pressure acting on geogrid.Considering the supporting effect of soil between piles under the geogrid, the stress and deformation of goegrid were analyzed to obtain the deflection calculation formula of geogrid under load of filling, and the pile efficacy could be calculated after the calculation of geogrid deflection.The results calculated by the proposed method are compared with the observed results recorded in the reference,which show that the difference between the calculated results and the observed results is less than 6％, so it verified that the proposed method is feasible and reasonable.关键词
桩承式加筋路堤/桩间土/土工格栅/荷载分担比/理论分析Key words
goesynthetic-reinforced and pile-supported embankment/ soil between piles/ goegrid/ load sharing ratio/ theoretical analysis分类
建筑与水利引用本文复制引用
马强,郑俊杰,张军..考虑桩间土支撑的桩承式加筋路堤理论分析[J].华中科技大学学报（自然科学版）,2011,39(3):30-33,4.基金项目
国家自然科学基金资助项目(50978112) （50978112）
教育部留学回国人员科研启动基金资助项目(20091341) （20091341）
山西省交通科技攻关项目. （）
