加筋土挡墙离心模型试验研究  

Centrifuge model tests of reinforced earth retaining wall

作　　者：顾培[1] 高长胜[2] 杨守华[2] 赵维炳[2] 

机构地区：[1]深圳市水务工程建设管理中心,广东深圳518048 [2]南京水利科学研究院,江苏南京210029

出　　处：《水利水运工程学报》2010年第2期67-72,共6页Hydro-Science and Engineering

基　　金：水利部"948"计划科技创新与转化项目(CT200409)

摘　　要：针对建造在软土和刚性地基上的加筋土挡墙,分别采用分块面板和整体面板对它们的工作机理进行了离心模型试验研究.研究表明:①正常工作状态时加筋土挡墙面板的侧向位移相对较小,安全性高;②建造在软弱地基上的加筋土挡墙变形要大于建造在坚硬土层上的加筋土挡墙,采用分块面板加筋土挡墙变形要大于整体面板加筋土挡墙;③沿筋带水平或垂直方向上,筋带应变均呈现"中间大,两端小"的分布特点.Centrifuge model tests are carried out to study the work mechanism of the reinforced earth retaining wall built on soft soil and the rigid foundation with sub-block panels and a whole panel.The results show that： ①in the normal state,the lateral displacement of reinforced earth retaining wall panels is smaller,which means high security;②the deformation of the reinforced retaining wall built on soft soil is greater than that built on the hard soil,and the deformation of the reinforced retaining wall with sub-block is bigger than that of the whole panel;③the reinforced strip strain in the middle is much bigger than that in both ends whether in vertical or horizontal direction.

关 键 词：加筋土挡墙 离心试验 变形 筋带 

分 类 号：TU476.4[建筑科学—结构工程]