山区公路曲线型悬臂式挡土墙的力学性能研究  

Research on the Mechanical Properties of the Curved Cantilever Retaining Wall of the Mountainous Highway

作　　者：李自林[1] 王世龙[1] 

机构地区：[1]天津城建大学土木工程学院,天津300384

出　　处：《天津城建大学学报》2015年第5期323-328,共6页Journal of Tianjin Chengjian University

基　　金：天津市自然科学基金项目(13JCYBJC19600);天津市市政公路行业科技项目(2014-23)

摘　　要：以山区公路曲线型悬臂式挡土墙为研究对象,采用有限元分析方法,利用ANSYS软件建立1∶1的三维有限元模型,研究在重力场作用下,山区公路悬臂式挡土墙平面线形沿不同曲率半径布置时挡土墙与土体耦合作用下的力学性能.计算结果表明:和曲线型挡土墙相比,理想状态下的直线型挡土墙发生的位移和应力均达到最小值;同时曲线型挡土墙随着曲率半径的减小,挡土墙发生的径向位移及其横截面上所受应力逐渐增大.With the curved cantilever retaining wall of the mountain road as research object,and through the finite element analysis method,this research establishes a 3D finite element model of 1∶1,using ANSYS software. Based on the model,the paper researches the mechanical properties of the cantilever retaining wall and soil coupled effect under the action of gravity,when the horizontal alignment of the cantilever retaining wall is arranged along the different radius of curvature. The results show that compared with those of curve type retaining wall,the ideal state of the displacement and stress of the linear retaining wall reaches minimum value;at the same time,with the increase of the radius of curvature,the retaining wall displacement and stress increase.

关 键 词：悬臂式挡土墙 有限元分析 耦合 平面线形 曲率半径 

分 类 号：U417.11[交通运输工程—道路与铁道工程]