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跳车是由于公路桥头及伸缩缝(桥头引道)处的差异沉降或伸缩缝破坏而使路面纵坡出现台阶引起车辆通过时产生跳跃的现象。从桥头跳车对行车速度的影响、产生桥头跳车的成因分析、桥头跳车防治措施等几个方面论述了工程病害产生的原因以及解决办法。桥台跳车是目前比较难处理的工程病害,要治理桥头跳车首先要研究其产生的原因,提出适当的处治方法,并且要切实可行,便于施工,还要克服建设、设计、科研、监督、施工相互脱节的通病,各方共同努力克服这一世界性难题。
Jumping is due to the road bridge and expansion joints (Bridge Road) at the differential settlement or expansion joints destroyed so that the road longitudinal slope caused by the vehicle when the jump caused by the phenomenon. The causes of the engineering disease and its solutions are discussed from the aspects of the impact of the vehicle jumping at the bridgehead on the driving speed, the cause analysis of the vehicle jumping at the bridgehead, and the prevention and control measures of the jumping at the bridgehead. Jumping bridge abutment is more difficult to deal with the current engineering problems, to manage the bridge at the first trip to study the causes of their causes, put forward appropriate treatment methods, and to be practical, easy construction, but also to overcome the construction, design, scientific research, supervision , Construction is out of line with each other’s common problems, all parties work together to overcome this world-wide problem.