沥青路面养护路段划分方法研究

Research on Division Method of Asphalt Pavement Maintenance Segments

在路面维修或进行预防性养护时,通常希望同一处置措施的施工路段尽可能长一些,以避免施工机械的频繁迁移。根据实际调查结果,选取横向裂缝长度、纵向裂缝长度、车辙深度和摩擦系数为分类指标,建立聚类分析模型。以M atlab统计工具箱为基础,对路面状况进行聚类分析,以获得该路段的路面破坏主要模式。结果表明,该模型科学简便,评价结果客观、合理,与实际情况符合程度高。

For a pavement maintenance project,it is always expected that the road segments to be treated or candidate segments are as long as possible to avoid frequent migration of paving equipment.Four indexes,transverse crack,longitudinal crack,rut depth and friction coefficient,are used to found the cluster analysis model.The primary damage mode of the pavement condition is obtained by cluster analysis based on the Matlab statistical toolbox.The result shows that the model in this paper is scientific and simple,and the evaluation result is impersonal and reasonable,which is highly in line with the practice.