道路路基工作区深度的计算分析及应用

Computational Analysis on Depth of Subgrade Working Area and the Application

采用弹性半空间体理论的布辛尼斯克公式与基于弹性层状体系理论的bisar软件,对某新建道路路面不同轴载工况下的路基工作区深度进行了计算和对比分析,结果表明:后者计算结果要大于前者。同时,提出了设计时应依据汽车轴载组成调整路床范围的建议。

For a newly built pavement under different cases of axle load,with the Boussinesq formula from elastic half-space theory and bisar based on elastic multi-layer theory,the depth of subgrade working area in each case was calculated respectively,and then compared each other. The result shows that the calculation result from the latter is larger than that from the former; and it is proposed to adjust the range of roadbed according to vehicle＇s axle load distribution in the design.