砂桩复合地基防止桥头跳车的研究

摘要

高速公路桥台与路堤衔接处的跳车是高速公路建设中急需解决的问题之一。从分析造成高速公路桥头跳车现象的原因出发，对几种有代表性的处理方法进行了探讨，然后提出并着重讨论了应用砂桩复合地基处理桥头跳车的加固机理和具体工程实践。%The vehicle bumping at the connecting part bewteen the freeway abutment and the embankment is one of the urgent problems in the process of freeway construction.The reasons that lead to the bumping phenomenon and the solutions are analyzed, the method of using sand pile composite foundation to settle this problem and its applications are also emphasized herein.