【摘要】 “桥头非均匀沉降”和“桥头跳车”直接影响高速公路的运营质量，也是长期以来未能彻底解决的问题．“路，桥协调施工”能保证桥头的整体工程质量，使得桥头填土和路基的压实度做到完全一致，使整个桥头和路基形成一块完整、连续的半刚性板体，对于防止桥头的非均匀沉降和克服桥头跳车能获得良好的效果．更多还原

【Abstract】 Non-uniform settlement and bump at bridge approach have a direct effect on motorway rideability, and this problem can’t be sloved for a very long time. The Coordinative construction of subgrade and abutment can ensure integral construction quality of bridge approach,and it can keep the degree of compaction of filler at bridge approach and that of subgrade exactly the same, and also can bind the whole approach and subgrade into a completed continuous semi-rigid slab.This will prevent non-uniform settlemnt andbump at bridge approach effectively.更多还原