拓宽路基在车辆荷载不同作用位置下的力学行为研究

Study on the Mechanical Behavior of Widened Subgrade under Different load Positions of Vehicles

为了研究高速公路改扩建完成后车辆荷载作用位置对拓宽路基的影响,本文应用Ansys有限元计算分析软件,建立车辆荷载力学计算模型,分别对车辆荷载作用在新路基、旧路基和新旧路基结合处等不同位置进行了应力与应变分析,文章研究总结了车辆荷载在新路基、旧路基和新旧路基结合处等不同位置下的竖向位移、水平位移、竖向应力与剪应力的变化规律,以期为我国高速公路路基的拓宽设计提供参考。

To study after completion of the highway construction and location of widening roadbed,the influence of vehicle load,Ansys finite element analysis software,set up mechanical calculation model of vehicle load,respectively,the vehicle load in the new subgrade and old subgrade and different locations such as new and old roadbed attaches to the stress and strain analysis,research summarizes the vehicle load in the new subgrade and old subgrade under different location and new and old roadbed junction of the vertical displacement and horizontal displacement,vertical stress and shear stress change rule,in order to provide reference for design of our country highway roadbed widening.