高速公路稳定期桥头跳车治理及其路面改善设计

Bridgehead vehicle-jumps treatment and the design of improving pavement for highway in the stable phase

在判定桥头路基沉降进入稳定期后,采用纵坡拟合并辅以路面改善的设计方法,以永久消除桥头跳车给司乘人员带来的不良感受。此设计方法首次在我省高速公路几处桥头应用并实施,经过三年来的运营,使用效果较好。本文对此类设计经验进行了总结,供有关养护设计参考。

After the determination of subgrade settlement into a stable period, the negative feelings of passengers caused by bumping at bridgehead can be removed permanently through adopt the design method of profile grade fitting and improving pavement. This design method was first applied at several expressway bridgeheads in AnHui Province. After three years operation it has been proved to he excellent. This paper summarizes this design experiences, which is referential for the maintenance and design, which is referential for the maintenance and design.