上海交通大学学报

上海交通大学学报（自然版） ›› 2013, Vol. 47 ›› Issue (09): 1459-1463.

• 交通运输 • 上一篇    下一篇

交通荷载下H-V加筋路堤加筋效果的数值分析

王一鸣，张孟喜，邱成春，李林   

  1. (上海大学 土木工程系， 上海 200072）
  • 收稿日期:2012-12-01 出版日期:2013-09-28 发布日期:2013-09-28
  • 基金资助:

    国家自然科学基金资助项目(40972192)资助

Numerical Analysis of Embankment Reinforced with H-V Reinforcement under Traffic Loading
 

WANG Yiming,ZHANG Mengxi,QIU Chengchun,LI Lin
  

  1. (Department of Civil Engineering, Shanghai University, Shanghai 200072, China)
     
  • Received:2012-12-01 Online:2013-09-28 Published:2013-09-28

摘要：

针对交通荷载作用下的水平-竖向（HorizontalVertical，H-V）加筋路堤，利用有限元软件ABAQUS建立二维模型并对路堤进行显示动力分析.通过动三轴试验，将其结果拟合成应变软化曲线并编入ABAQUS用户子程序，同时，对不加筋、水平加筋和HV加筋3种工况下的路堤变形和应变进行比较.结果表明：在交通荷载作用下，H-V加筋路堤能够显著减小路堤的竖向位移和水平位移；H-V加筋能够控制路堤的不均匀沉降，减小应变，而且较普通的水平加筋效果显著，尤其在水平位移的约束方面.
 

关键词: 路堤, H-V加筋, 交通荷载, 应变软化, 有限元法

Abstract:

In order to study the embankment reinforced with Horizontal-Vertical (H-V) reinforcement under traffic loading,  a two-dimensional model was calculated by finite element method (FEM) program ABAQUS using dynamic explicit. According to the result of dynamic triaxial tests, fitting strainsoftening curve was written into user subroutine in ABAQUS. The deformation and strain of the embankment without reinforcement, with ordinary reinforcement and
with H-V reinforcement were analyzed and compared. The H-V reinforcement significantly reduced the strain, vertical displacement and horizontal displacement and controlled differential settlement in embankment under traffic loading. H-V reinforcement had a better reinforced effect than ordinary reinforcement, especially in the control of horizontal displacement.

Key words: embankment, Horizontal-Vertical (H-V) reinforcement, traffic loading, strain-softening, finite element method (FEM)

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