基于灰色关联与方差分析的沥青混合料抗剪性能参数影响研究

Research on the Influence of Shear Performance Parameters of Asphalt Mixture Based on Grey Correlation and Variance Analysis

研究沥青混合料抗剪性能的影响参数,以及各参数交互作用下对抗剪性能的影响。基于集料类型、沥青类型、油石比、压实功、均匀性等参数进行了单轴贯入试验,并采用了灰色关联分析与方差分析。结果表明:各参数与沥青混合料抗剪性能的关联系数表现为:沥青类型关联度最高,集料类型关联度最低;各参数间交互作用十分复杂,在集料类型、油石比、压实功在以既定条件为基础时,才能呈现出对混合料抗剪性能影响的显著性,其中沥青类型与压实度对于抗剪性能的影响始终表现为显著。沥青类型和压实度是沥青混合料抗剪性能影响的关键要素。

Study the influence parameters of asphalt mixture resistance and the influence of shear resistance.The uniaxial penetration test was performed based on the parameters of aggregate type,type of asphalt,asphalt ratio,compaction work,and uniformity,using gray association analysis and ANOVA.The results show that the correlation coefficient of each parameter and the asphalt mixture is the highest,the asphalt type is the lowest;the interaction between the parameters is very complex with the significant effect on the established conditions,with the influence of asphalt type and compaction on the shear performance.Asphalt type and compaction are key elements of the shear resistance of asphalt mixture.