基于综合评价法的旧沥青路面不同车道病害对比分析

Evaluation of Lane Level Disease Status of Old Asphalt Pavement Based on Comprehensive Evaluation Method

为了准确评价旧沥青路面使用性能水平,为养护维修设计提供依据,提出了基于路面破损状况指数的综合评价方法,并依托具体工程对既有道路路面使用状况及病害程度进行了全面分析。结果发现:同一路段不同车道病害特点及病害程度具有显著差异;基于路面破损状况指数PCI,结合路面横向裂缝间距、纵向裂缝率等指标对路面损坏状况进行综合评价的方法可精确表征路面真实病害状况;通过综合评价的方法,可有效确认检测路段的主导病害,为维修设计提供依据。

In order to accurately evaluate the performance level of old asphalt pavement, the comprehensive evaluation method based on pavement damage index is used to comprehensively analyze the existing road pavement service condition and disease degree. The results show that: the disease characteristics and specific disease degree of different lanes in the same road section have significant differences;based on the pavement damage index PCI, combined with the pavement transverse crack spacing, longitudinal crack rate and other indicators, the comprehensive evaluation method can accurately characterize the actual pavement disease condition;through the comprehensive evaluation method, the dominant disease of the detection section can be effectively confirmed, It provides the basis for maintenance design.