中、日、美、加沥青路面技术状况评价标准比较与对接研究

Comparison and Conversion Study on Asphalt Pavement Technical Status Assessment Standards between China,Japan,America,and Canada

对沥青路面技术状况指标的精准量化,是对路面服役状态精确评价及制定科学修复方案的重要依据。目前世界各国路面状况评价标准存在较大差异,导致结果之间难以比较和相互转换。通过详细分析中国、日本、美国和加拿大现行的沥青路面技术状况评价标准体系,从路面平整度、路面损坏状况、路面抗滑性能方面对路面技术状况评价指标进行了比较研究。并结合多路段样本实例,分别采用各国标准体系计算各评价指标结果,同时将不同计算标准所得结果进行转换分析。研究结果表明:路面性能评价统计指标在各国规范中具有一定的相似性,中国规范中涉及统计指标更全面;各国规范间存在相关性,且部分国家之间存在较强的线性相关,加拿大规范中指标数据统计理念对结果造成影响较大。研究可以为不同标准下路面状况评价指标值的转换提供参考依据,为我国路面性能评价标准的进一步完善提供可选择的方向,同时可以促进不同方法与标准的更新进步,也能够促进对路面评价方法、性能预测模型、修复决策算法等国际先进研究成果的应用。

The accurate quantification of the technical status indicators of asphalt pavement is an important basis for the accurate evaluation of the pavement service status and the formulation of scientific repair plans.At present,there are conspicuous differences in the evaluation standards for pavement status in various countries in the world,which makes it difficult to compare and convert the results.Through the detailed analysis of the current asphalt pavement technical condition evaluation standard system in China,Japan,the United States and Canada,the evaluation indexes of pavement technical conditions were compared and studied from the aspects of pavement smoothness,pavement damage and pavement skid resistance.Combined with the sample of multiple road sections,the standard systems of various countries were used to calculate the results of each evaluation index,and the results obtained by different calculation standards were converted and analyzed.The research results show that the statistical indicators of pavement performance evaluation have certain similarity in the specifications of various countries,and the statistical indicators involved in the Chinese specifications are more comprehensive.There is correlation between national norms,and some countries have strong linear correlation.The statistical concept of indicator data in Canadian norms has a great impact on the results.The result can provide a reference basis for the conversion of pavement condition evaluation index values under different standards,and provide an optional direction for the further improvement of pavement performance evaluation standards in China;meanwhile,it can promote the updating and progress of different methods and standards,and also promote the application of international advanced research results such as pavement evaluation methods,performance prediction models and restoration decision-making algorithms.