基于层次分析法的公路运营期路基状况评价

Condition Evaluation of Subgrade in Highway Operation Period Based on Analytical Hierarchy Process

为进一步提高公路路基养护质量,基于规范法和层次分析法对国省道运营期路基技术状况评价进行了研究,结合广东省境内3条典型国省道开展了现场路基状况调查,利用层次分析法确定了路基技术状况评价中21项评价因素和5类分项评价对象的权重参数,并计算出15段试验路的各类路基技术状况指数,最后将层次分析法的计算结果与规范法进行比较.结果表明:两种方法的评价结果基本一致,而利用层次分析法可以更客观、更详细地反映公路运营期路基的病害情况和各类技术状况,有利于合理、有针对性地进行公路路基养护.

In order to further improve the maintenance quality of subgrade, the subgrade condition evaluation is analyzed based on the standard method and the analytical hierarchy process, respectively. Then, according to the investigation results of subgrade condition carried out for three typical highways in Guangdong Province, the weight parameters of twenty-one factors and five components are determined via an analytical hierarchy process, and the subgrade condition index of fifteen test sections is calculated. Finally, a comparison is made between the calcula- ted results and the results obtained by the standard method. It is found that, as compared with the standard me- thod, although the analytical hierarchy process basically gives the same results, it is more objective and can reflect the subgrade condition and diseases in highway operation period in detail, which helps to perform subgrade main- tenance engineering more reasonably with clear aims.