文章结合陵保公路工程实例,介绍了海南省横线二级公路大修整治设计方案。经过实地调查检测,分析产生病害的主要成因,拟定大修改造原则,提出对公路软基、路基、排水设施、路面、桥涵等进行综合整治的设计方案,取得较好的效果,为海南其他等级公路的改建积累了经验。 Based on the example of Lingbao Highway Project, this article introduces the design plan of overhaul and remediation of Grade II highway in Hainan Province. After field investigation and testing, the main causes of diseases were analyzed, the principle of overhauling and rebuilding was proposed, and the design scheme of comprehensive improvement of highway soft foundation, subgrade, drainage facilities, pavement, bridges and culverts was proposed and achieved good results. The reconstruction has accumulated experience.