[1]汪海年,郝培文,肖庆一,等.粗集料棱角性的图像评价方法[J].东南大学学报(自然科学版),2008,38(4):637-641.[doi:10.3969/j.issn.1001-0505.2008.04.018]
 Wang Hainian,Hao Peiwen,Xiao Qingyi,et al.Digital image evaluation method for angularity of coarse aggregates[J].Journal of Southeast University (Natural Science Edition),2008,38(4):637-641.[doi:10.3969/j.issn.1001-0505.2008.04.018]
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粗集料棱角性的图像评价方法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
38
期数:
2008年第4期
页码:
637-641
栏目:
交通运输工程
出版日期:
2008-07-20

文章信息/Info

Title:
Digital image evaluation method for angularity of coarse aggregates
作者:
汪海年 郝培文 肖庆一 刘丽
长安大学特殊地区公路工程教育部重点实验室, 西安 710064
Author(s):
Wang Hainian Hao Peiwen Xiao Qingyi Liu Li
Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang’an University,Xi’an 710064,China
关键词:
道路工程 粗集料 棱角性 数字图像处理
Keywords:
highway engineering coarse aggregate angularity digital image process
分类号:
U414;TP317.4
DOI:
10.3969/j.issn.1001-0505.2008.04.018
摘要:
利用自行研制的粗集料形态特征研究系统,分别采用颗粒周长法与分形几何法,提出粗糙度与分形维数2个指标对粗集料的棱角特征进行评价.将其计算结果与目前侵蚀膨胀法的表面参数指标进行了对比分析,并采用粗集料松装空隙率对粗糙度与分形维数2个图像指标进行了验证.研究表明:粗集料的粗糙度、分形维数与表面参数具有良好的一致性,均可以较好地表征粗集料的棱角性.粗集料的棱角特性与集料的粒径尺寸具有一定的相关性,集料粒径越大,其棱角性越弱.对于所采用的材料,卵石的棱角性最差,石灰岩、花岗岩、玄武岩与安山岩4个集料的棱角性差异并不显著.
Abstract:
With the self-developed morphology analysis system of coarse aggregate(MASCA), the particle perimeter method and the factual dimension method are adopted, and two corresponding indices of the roughness and the factual dimension are taken to evaluate the angularity of coarse aggregates. The calculation results are compared with the surface parameter from the current erosion-dilation techniques, and verified by the traditional air void ratio of uncompacted coarse aggregates. Results show that, the roughness, factual dimension and surface parameter keep good concordance, and they can all characterize the angularity of coarse aggregates well. The angularity has relationship with aggregate size, while the angularity gets smaller with the increase of particle size. For the material studied, the angularity of pebble is the smallest, while the angularity difference between limestone, granite, basalt and andesite are not obvious.

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备注/Memo

备注/Memo:
作者简介: 汪海年(1977—),男,博士,讲师; 郝培文(联系人),男,博士,教授,博士生导师,haopw@yahoo.com.cn.
基金项目: 国家自然科学基金资助项目(50578016)、教育部新世纪优秀人才支持计划资助项目(2006年).
引文格式: 汪海年,郝培文,肖庆一,等.粗集料棱角性的图像评价方法[J].东南大学学报:自然科学版,2008,38(4):637-641.
更新日期/Last Update: 2008-07-20