表面构造深度

相同级配下，路面现场空隙率越大，表面构造深度越大，路面越易渗水；

Increasing in place air void and surface structure can cause larger permeability ;

用数字图像技术评价和测量沥青路表面构造深度

Evaluation and Measurement of Asphalt Pavement Surface Texture Depth with Digital Image Technique

通过对三条在建高速公路沥青路面渗水系数的测试，分析得出沥青路面渗水性能与沥青混合料的类型、路面现场空隙率、结构层厚度及路面表面构造深度有关。

Permeability test was done at three expressways in 2001 . Based on the test data , it is concluded that permeability of asphalt pavement is affected by mixture type , in place air void , thickness of layer and surface structure ;

通过大量室内试验研究了沥青混凝土矿料级配、沥青用量等因素对其体积性能（空隙率）和表面特性（构造深度）的影响。

Through lots of experiments for the factors that gravel grading and asphalt amount in asphalt concrete influences their porosity and structure depth .

之后为了判别离析，提出以表面特性指标&构造深度分析离析的方法，并分析了路面检测构造深度数据的概率分布函数，证明其符合正态分布。

The method of distinguishing segregation with texture depth was suggested . And it is proved that the distribution function of texture depth is in line with normal distribution .

该方法采用普通数码相机纪录道路表面构造特征，由图像的像素值分析得出路表面构造深度测量结果。

With this method , the pavement surface roughness can be recorded by an ordinary digital camera , and the pavement texture depth can be obtained by the pixel analysis of recorded images .