针对公路改扩建后出现的新老路基交界处纵向裂缝、路基翻浆、边坡冲刷及坍塌等问题进行了分析,阐述了各类病害产生的原因,并提出了各种病害的防治措施及处理办法等,以期指导实践。%This paper analyzes new-old roadbed joint diseases after highway expansion,such as vertical cracks,roadbed frost boiling,side slope erosion and collapse etc,describes causes of various diseases,and proposes preventive measures and treatment methods and so on,with a view to guide practice.
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