公路桥头跳车的原因分析与防治措施

Analysis on reason of bumping at bridge-head in highway andits prevention and cure measure

结合某高速公路桥头跳车的工程实例，从地基沉降、路基变形、施工方法、结构体系及设计等方面对桥头跳车病害进行了原因分析，提出了一些切实可行的防治桥头跳车的措施，以供类似工程参考。

Combined with practical engineering of bumping at bridge-head in a certain expressway, this paper analyzes its reasons from setting of sub-grade, deformation of roadbed, construction method, structural system and design, and puts forward several measures to prevent and cure bumping at bridge-head, which to offer a reference for similar engineering.