华南理工大学学报(自然科学版) ›› 2007, Vol. 35 ›› Issue (11): 54-58,62.

• 交通与运输工程 • 上一篇    下一篇

基于数字图像处理技术的粗集料级配特征

汪海年1  郝培文1 庞立果1 邸建红2   

  1. 1.长安大学 特殊地区公路工程教育部重点实验室,陕西 西安 710064;2. 石家庄铁道学院 电气工程分院,河北 石家庄 050043
  • 收稿日期:2006-10-09 出版日期:2007-11-25 发布日期:2007-11-25
  • 通信作者: 汪海年(1977-) ,男,讲师,博士,主要从事路面结构与道路材料研究. E-mail:Wanghn@chd.edu.cn
  • 作者简介:汪海年(1977-) ,男,讲师,博士,主要从事路面结构与道路材料研究.
  • 基金资助:

    国家自然科学基金资助项目(50578016)

Investigation into Grading Characteristic of Coarse Aggregate via Digital Image Processing Technique

Wang Hai-nianHao Pei-wenPang Li-guo Di Jian-hong2   

  1. 1. Key Laboratory for Special Area Highway Engineering of the Ministry of Education , Chang'an Univ. ,Xi'an 710064,Shaanxi, China;2. School of Electric Engineering, Shijiazhuang Railway Institute , Shijiazhuang 050043 , Hebei , China
  • Received:2006-10-09 Online:2007-11-25 Published:2007-11-25
  • Contact: 汪海年(1977-) ,男,讲师,博士,主要从事路面结构与道路材料研究. E-mail:Wanghn@chd.edu.cn
  • About author:汪海年(1977-) ,男,讲师,博士,主要从事路面结构与道路材料研究.
  • Supported by:

    国家自然科学基金资助项目(50578016)

摘要: 采用数字图像处理技术,利用自行研制的粗集料形态特征研究系统(MASCA) ,对粗集料的图像级配特征进行研究,提出将二维数字图像级配转换为三维机械筛分级配的修正方法.研究结果表明:数字图像级配与室内机械筛分级配具有较好的相关性,两者间的相对误差小于5%; 该方法对于不同岩性石料与不同的工程级配均具有很好的普适性.采用MASCA 系统来检测粗集料的级配特征具有较好的可行性.

关键词: 道路工程, 粗集料, 级配, 数字图像处理

Abstract:

In this paper , digital image processing (DIP) technique is adopted to study the image grading characteristics of coarse aggregate. By using the self-developed morphology analysis system of coarse aggregate (MASCA) , a conversion method is put forward to transform the two-dimension DIP grading image into the three-dimension mechanical sieving image. The results show that the DIP grading image accords well with the mechanical sieving one , with an error of less than 5 %. Moreover, the proposed method has a good universality for different stones and grading , thus there following the conclusion that the MASCA system is feasible in the measurement of grading characteristics of coarse aggregate.

Key words: highway engineering, coarse aggregate, grading, digital image processing