刻槽混凝土路面表面纹理及其噪声的相关性统计分析

Statistical Analysis of Correlation between Surface Texture and Noise for Grooved Concrete Pavement

为深入研究和探索刻槽混凝土路面纹理构造特征与轮胎/路面噪声之间的相互关系,对多条高速公路混凝土路面的平整度、宏观构造、细观构造等路表纹理特性进行了测试,并采用随车声强法检测了相应路段的噪声水平。运用Origin线性回归及Pearson双侧检验方法,统计分析了混凝土路面纹理构造特征与其噪声的相关性。研究表明:表面平整度对混凝土路面噪声影响显著,平整的路面噪声水平较小;宏观构造深度对轮胎/路面噪声水平亦具有显著影响,构造深度越大对应轮胎/路面噪声水平越高;混凝土路面表面横向力系数与轮胎/路面噪声没有明显的相关性。

In order to thoroughly research and explore the relationship between texture characteristics and tire / road noise for grooved concrete pavement, the surface texture characteristics such as roughness,macrotexture,microtexture are measured on numerous expressway pavements,and the noise level on the pavements are tested by the method of on-board sound intensity（ OBSI）. Based on this,the correlation between concrete pavement texture characteristics and tire / pavement noise is statistically analysed by Origin linear regression and Pearson two-side test method. The result indicates that（ 1） the effect of pavement roughness on tire / pavement noise is significant and the noise level is smaller for flat pavement;（ 2） macro texture depth also has a significant impact on pavement / tire noise,and the larger grooved depth of concrete pavement may cause the higher tire / road noise level;（ 3） there is no obvious correlation between sideway force coefficient（ SFC） and tire / pavement noise.