论大新高速公路桥头跳车的处治措施

Treatment measures of bumping at bridge-head in Daxin expressway

分析了大新高速公路桥头跳车的原因 ,并提出相应处理措施 ,通过采用袋装砂井处理原地面、严格控制台背填料及压实度、台背钻孔灌浆强化式处理等方法 ,缓解了桥头跳车的现象 ,满足了高速、安全。

In this paper the reasons caused the bumping at bridge head in Daxin expressway are analyzed and some corresponding treatment measures are proposed. Using sacked sand to treat old pavement and based on strict controls in back filling and compactness and drilling grouting treatment the bumping phenomenon is remitted. The safety and amenity service requirements can be meet.