对旧路加宽存在问题的研究

随着我国经济的迅速发展，一些现有公路已不能适应交通量增长的要求，需要扩大道路通行能力，面临改扩建问题，而新老路基结合处就成为路基施工的重点。结合大齐公路改建工程，分析了旧路路基施工时可能产生问题，提出合适的施工方案。通过研究找出有效避免施工过程中新旧旧路基结合部产生问题的原因，制定解决方案保证路基稳定性。研究成果对公路改建工程新旧路结合部的设计与施工具有借鉴意义。

A Research on the Existent Problem of Widen Old Road

Along with quick development of our country economy,some existing highway already can not fit traffic volume growth of request,demand to extend the road ability,face to change extension problem,but new and old roadbed combine place which become the keystone.Combine the Daqi highway rebuilding engineering,analysis possibly creation problem,put forward accommodation of construction project.Finding out causes of problems in the new and old road coupling section,to establish solution to ensure stability of roaded.And the result of research is used for reference.