According to Liaoning provincial highway improvement project, this paper analyzed the internal and external treatment technology of new and old highway roadbed and conducted the integrated new-old highway roadbed treatment to provide reference for the design and construction personnel.%本文根据辽宁省公路改扩建工程，针对公路新旧路基内部和外部处治技术进行了分析，针对目前出现病害进行新旧路基综合处治技术，为广大设计与施工人员提供参考。
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