路堤荷载下水泥土桩复合地基变形规律分析  

Analysis on Deformation Law of Cement-soil Pile Composite Foundation under Embankment Load

作　　者：李永刚[1,2] 赵春风[1,2] 钱涛[1,2] 

机构地区：[1]同济大学岩土及地下工程教育部重点实验室,上海200092 [2]同济大学地下建筑与工程系,上海200092

出　　处：《路基工程》2012年第4期192-195,共4页Subgrade Engineering

摘　　要：利用有限元数值计算法,系统分析了填土高度、填土压缩模量、桩长以及桩体压缩模量对水泥土桩复合地基变形的影响。结果表明:填土高度和桩长对地表沉降、地基土侧向变形影响较大,是影响复合地基变形的主要因素;而填土压缩模量和桩体压缩模量的影响较小,是影响地基变形的次要因素。With FEM calculation, the systemmatic analyses are made on the effects of height and compression modulus of fill as well as length and compression modulus of pile on cement-soil pile composite foundation. The results show that the height of fill and the length of pile affecting ground settlement and lateral deformation of foundation soil to a greater extent are the primary causes resulting in deformation of the composite foundation; while the compression modulus of fill and pile body having less effects are the secondary causes.

关 键 词：路堤荷载 复合地基 水泥土桩 地表沉降 侧向变形 有限元法 

分 类 号：TU472.36[建筑科学—结构工程]