基于路用性能指标的高等级公路沥青路面预养护方案研究

Study on Asphalt Pavement Pre-maintenance Scheme of High-grade Highway Based on Road Performance Index

高等级公路沥青路面预养护对于遏制路面早发病害劣化进程,延长路面使用寿命具有重要意义;为了提高现有沥青路面预养护方案编制的精准性和科学性,基于路用性能指标对路面通行工况的影响权重建立了路面工况量化评价模型和路面预养护决策模型,可根据预养护评级结果Y值所处区间,给出相应的预养护执行标准,该模型在公路预养护施工项目中已得到较为成功的应用。

The asphalt pavement pre-maintenance of the high-grade highway is of great significance for controlling the deterioration process of pavement early disease and prolonging the service life of the pavement.In order to improve the accuracy and scientificity of existing asphalt pavement pre-maintenance schemes,this paper establishes a quantitative evaluation model of the pavement working condition and a decision model of pavement pre-maintenance based on the influencing weight of road performance index on road traffic condition.According to the interval of Y value which is the pre-maintenance rating result,corresponding implementation standard is determined.These models have been successfully applied in highway pre-maintenance construction projects.