Image Processing and Shape Quantitative Analysis of Volcanic Cinder Particles

被引：0
作者：
Nie Z. [1 ]
Liao J. [1 ]
Zhou S. [2 ]
Li B. [3 ]
An A. [4 ]
机构：
[1] School of Civil Engineering, Central South University, Changsha
[2] College of Civil Engineering, Hunan University, Changsha
[3] School of Mathematics and Statistics, Central South University, Changsha
[4] China Road and Bridge Corporation, Beijing
来源：
Zhou, Suhua (zhousuhua@hnu.edu.cn) | 1600年 / Hunan University卷 / 47期
基金：
中国国家自然科学基金;
关键词：
Angularity; Elongation; Fractal dimension; Sphericity; Texture; Volcanic cinder;
D O I：
10.16339/j.cnki.hdxbzkb.2020.03.016
中图分类号：
学科分类号：
摘要：
The volcanic cinder has the characteristics of irregular shape and sharper angles, and its shape characteristics affect the material engineering properties. In order to explore the shape of volcanic cinder particles, the image and shape index of volcanic cinder were obtained by AIMS aggregate image measurement system. The fractal dimension and normal distribution method were used to discuss the influence of fractal dimension and shape as the particle size change on the particle shape and fractural dimension. The differences in shape between the volcanic cinder and general rock mass were also investigated. The results show that as the particle size decreases, the elongation and texture decrease, the angularity, sphericity and fractal dimension increase, the volcanic cinder approaches spherical and massive, and the surface angularity is reduced. All the shape indicators have a good correlation, and the angularity is the most sensitive to the change of the particle size. Thus, it can be preferentially selected to describe the shape of the volcanic cinder. In addition, comparison with pebbles and crushed stone shows that the change of volcanic cinder elongation and texture is not as significant as that of the pebbles and crushed stone under different particle size. Moreover, the texture and angularity of volcanic cinder are larger than those of pebbles and crushed stone, indicating that the volcanic cinder has more angular edges and a rougher surface. © 2020, Editorial Department of Journal of Hunan University. All right reserved.
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页码：131 / 139
页数：8
相关论文
共 24 条
  • [1] Hu J.Y., Mao J., Zhang H., Et al., Research on test characteristic of cinder and subgrade filling, Journal of Shenzhen University(Science and Engineering), 32, 6, pp. 625-631, (2015)
  • [2] Jiang M.J., Zheng M., Wang C., Et al., Different grain size distribution of experimental study on the mechanical properties of some ash, Rock and Soil Mechanics, 30, pp. 58-61, (2009)
  • [3] Yang F.Z., Huang Q.Y., Zhang J.D., Application of volcanic cinder in subgrade engineering, Highways & Transportation in Inner Mongolia, 4, pp. 24-27, (2006)
  • [4] Oh T.M., Joo G.W., Yun K.J., Et al., Crush characteristics of abrasive particles during abrasive waterjet rock cutting, pp. 1577-1581, (2015)
  • [5] Payan M., Khoshghalb A., Senetakis K., Et al., Effect of particle shape and validity of G(max) models for sand: A critical review and a new expression, Computers and Geotechnics, 72, pp. 28-41, (2016)
  • [6] Rouse P.C., Fannin R.J., Shuttle D.A., Influence of roundness on the void ratio and strength of uniform sand, Geotechnique, 58, 8, pp. 227-231, (2008)
  • [7] Kong L., Peng R., Particle flow simulation of influence of particle shape on mechanical properties of quasi-sands, Chinese Journal of Rock Mechanics and Engineering, 30, 10, pp. 2112-2119, (2011)
  • [8] Kandasami R.K., Murthy T.G., Effect of particle shape on the mechanical response of a granular ensemble, pp. 1093-1098, (2015)
  • [9] Kandasami R.K., Murthy T.G., Manifestation of particle morphology on the mechanical behaviour of granular ensembles, Granular Matter, 19, 2, pp. 1-13, (2017)
  • [10] Krumbein W.C., Measurement and geological significance of shape and roundness of sedimentary particles, Journal of Sedimentary Research, 11, 2, pp. 64-72, (1941)
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