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桥头跳车一直是困扰高等级公路设计和施工的难题,也是多年来大家所关心的热门话题之一,但是由于研究力度和深度的不足,至今未见有效而系统的设计理论。尽管产生桥头跳车的因素很多,但是宏观防止措施,应从利用轻质材料填筑台背和提高桥涵地基承载能力两个方面入手。而其他一些常规措施,尽管起到了一定的作用,但并非解决问题的根本出路。故此,在这里对这个进行一个比较系统的分析。
The bridgehead jumping has always been a problem that plagued the design and construction of high-grade highways. It is also one of the hot topics that everyone cares for many years. However, due to the lack of research and depth, so far no effective and systematic design theory has been found. Although there are many factors that lead to the vehicle jumping at the bridgehead, the macroscopic prevention measures should start with the two aspects of using the light materials to fill the back and improve the bearing capacity of the bridge and culvert foundation. Some other conventional measures, though they have played a certain role, are not the fundamental solution to the problem. Therefore, here for a more systematic analysis of this.