填料性能对预应力锚拉式桩板墙影响的数值分析  

The Numerical Analysis of the Effect of the Filling Performance on Pre-stressed Anchor Pile-plate Wall

作　　者：蒋鹏飞[1] 罗卫华[1] 李志勇[2] 

机构地区：[1]湖南省高速公路管理局,湖南长沙410016 [2]湖南省交通科学研究院,湖南长沙410007

出　　处：《公路工程》2007年第5期45-50,共6页Highway Engineering

基　　金：湖南省科技项目(03jzy3037)

摘　　要：预应力锚拉式桩板墙是一种得到广泛应用的新型支挡结构,本文通过建立耦合分析数值模型对桩板墙的受力特征进行了有限元分析。通过分析了解填料的力学参数(变形模量、摩擦角、粘聚力)对桩板墙位移、弯矩、土压力以及锚固端接触应力和自由段轴力的变化。揭示填料力学性能对预应力锚拉式桩板墙的影响,为类似工程的设计提供参考。The pre-stressed anchor sheet-pile wall is a new kind of retaining structure used widely. By the FEM,in this paper the coupling model was created and the performance of the Pre-stressed Anchor Sheet-pile Wall was studied. The distributions of displacements.soil pressure .moments of Sheet-pile and the contact pressure.axial force of the anchor were studied according to the mechanical parameters （Es .Фb.C）of the packing. The results show the effect on pre-stressed anchor sheet-pile wall due to different mechanical parameters. And it provides advices for the similar projects in the future.

关 键 词：桩板墙 预应力锚 作用机理 有限元方法 

分 类 号：U417.11[交通运输工程—道路与铁道工程]