旧路改造后路面可能产生病害成因浅析

改善和提高现有公路的通行能力是发展交通运输行业的具体要求,而公路改扩建是改善和提高公路通行能力最直接的措施。旧路改建后路面难免较早出现病害,文章从现有路况调查、原有路基使用状况、原有基层使用状况、旧路线形、超载超限等几方面因素对造成改造后公路路面病害的可能成因作了简单分析,为公路改扩建工程实践提供必要借鉴。

Discussion on the possible factors causing the distresses of pavement after reconstructed

To improve the current traffic capacity of highway is the specific requirements for developing transportation industry,while it is the direct measures for improving the capacity to reconstruct and expand a highway.It is hard to avoid the appearance of early distress on the rebuilt pavement.For this reason,this article discusses the possible causes of pavement distress after reconstructed,from the current investigation of road condition,the situation of subgrade utilization,the utilization of base course,the alignment of old routine,the overload and over limit,etc,thus providing a basis for reference to the practice of highway reconstruction and expansion.