基于图像技术的沥青混合料细观结构研究进展

发布时间：2018-05-30 06:22

本文选题：沥青混合料 + 细观结构　；参考：《中国科技论文》2014年05期

【摘要】：设计沥青混合料多依据沥青混合料的宏观品质,而沥青混合料的细观结构对宏观性能有着重要影响,基于图像技术的细观研究可深入地解释沥青混合料的路用表现。介绍了数字图像处理技术的定义及利用X-ray CT无损技术获取沥青混合料内部结构的方法,并综述了利用数字图像技术分析沥青混合料内部结构特性,包括集料形状、分布、接触性能及空隙等方面的研究,表明了图像技术研究沥青混合料的可行性。同时,还简要介绍了基于图像处理的沥青混合料细观结构的数值模拟方法,主要讨论了离散元方法和有限元方法的特点。最后提出了目前研究中的几点不足,并展望了沥青混合料细观结构未来的研究方向,为今后沥青混合料的研究提供参考。
[Abstract]:The design of asphalt mixture is mostly based on the macroscopic quality of asphalt mixture, and the meso-structure of asphalt mixture has an important influence on the macroscopic performance. The mesoscopic research based on image technology can explain the pavement performance of asphalt mixture in depth. This paper introduces the definition of digital image processing technology and the method of obtaining the internal structure of asphalt mixture by X-ray CT lossless technology, and summarizes the analysis of internal structure characteristics of asphalt mixture by digital image technology, including the shape and distribution of aggregate. The research on contact performance and void shows the feasibility of image technology in asphalt mixture research. At the same time, the numerical simulation method of asphalt mixture mesoscopic structure based on image processing is briefly introduced, and the characteristics of discrete element method and finite element method are mainly discussed. Finally, some deficiencies in the present research are put forward, and the future research direction of the meso-structure of asphalt mixture is prospected, which provides a reference for the future research of asphalt mixture.
【作者单位】：东南大学交通学院;
【基金】：高等学校博士学科点专项科研基金资助项目(20120092110053)
【分类号】：U414

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