高速公路沥青路面综合评价模型研究

Research on comprehensive evaluation model of expressway asphalt pavement

针对沥青路面使用性能评价过程中存在的不确定性、模糊性等问题,运用集对分析理论定量描述评价样本与评价标准等级间隶属关系的确定和不确定性。构造基于三角模糊数的集对差异度系数,确定沥青路面使用性能综合评价模型,结合专家经验和熵权法构造各评价指标权重,将该综合评价模型运用于实际工程,并与《公路沥青路面养护技术规范》评价结果进行对比。研究结果表明:将集对分析与三角模糊数耦合的综合评价模型应用于高速公路沥青路面使用性能评价中可行。

In view of the uncertainties and ambiguities in the performance evaluation of asphalt pavement,the set-pair analysis theory was used to quantitatively characterize the determination and uncertainty of the subordinate relationship between evaluation sample and evaluation standard level.The pairwise difference coefficient based on triangular fuzzy number was set up.Combined set pair analysis theory with triangular fuzzy number,a comprehensive evaluation model of asphalt pavement performance model was established.The weight of each evaluation index was determined by expert experience and entropy method.The comprehensive evaluation model was applied to the actual project and the evaluation results were compared with those of the“Technical Specifications for Highway Asphalt Pavement Maintenance”.The research result shows that the comprehensive evaluation model of set pair analysis and triangular fuzzy number coupling is feasible for the performance evaluation of freeway asphalt pavement.