低噪声沥青路面降噪原理及影响因素分析

Analysis of noise reduction principles and influence factors of low noise asphalt pavement

在分析轮胎噪声产生来源与分类的基础上,结合吸声系数与多孔隙沥青混合料结构之间关系,探讨了多孔隙低噪声沥青路面的降噪机理,建立了低噪声沥青路面降噪预测模型,分析了不同因素对沥青路面的降噪效果的影响程度。

Based on the analysis of tire noise source and classification, according on the relationship between the sound absorption coefficient and the pore structure of asphalt mixture, the paper discussed the noise reduction mechanism of the porous low noise asphalt pavement, and then established the noise reduction prediction model of low- noise asphalt pavement, and finally analyzed the influence of different factors on the asphalt pavement noise reduction effect.