基于数字图像处理技术的沥青混合料车辙机理分析

对沥青路面车辙问题的研究一直是道路工程领域关注的热点之一。文章应用数字图像处理技术，分别对AC-13C沥青混合料试件的APA车辙试验前、加载500次、1000次、2000次、4000次和6000次时的截面图像中粗颗粒的运动轨迹做出分析。结果表明：应用数字图像处理技术能够观测粗颗粒的运动情况，通过定义转角?和位移量L，以及 和?两个统计量能够描述车辙试验过程中各个加载阶段粗颗粒的复杂运动过程并将其量化。

Based on Digital Image Processing Technique to analysis the rutting mechanism of Asphalt Mixtures

Study about the rutting of asphalt pavement is one of the focal problems to road engineering. Applying digital image processing technique, the section images of original AC-13C specimens and 500 times、1000 times、2000 times、4000 times and 6000 times after APA rutting test were acquired, and this paper analyzed the variation regularity of coarse particles’ moving track. Results showed using digital image processing technique could observe coarse particles’ moving; defining variable ? and L, statistic and ? could describe the complicated particles’ moving in different loading phases during APA rutting test quantitatively.