Study of particle shape quantification and effect on mechanical property of sand

	Study of particle shape quantification and effect on mechanical property of sand
	Liu, Qing-Bing ; Xiang, Wei ; Budhu, M.; Cui, De-Shan
	2011
发表期刊	Yantu Lixue/Rock and Soil Mechanics
卷号	32 期号:SUPPL. 1 页码:190-197
摘要	As a special granular material, the mechanical properties and characteristics of sand are significantly affected by particle shape such as packing density, shearing characterization, compaction, and crushability. However, grain shape quantification techniques to distinguish one sandy material from another have not reached a stage of development for inclusion in the interpretation of the behavior of sand. In this paper, the light microscope was employed to capture the grain shape digital images, which were subsequently converted into binary picture to produce contour boundary for particle shape with the help of ImageJ. The Java program language was used to compile a new plugin to determine several grain shape parameters of all sand samples in our test. Finally, relative density and direct shear tests were conducted to determine the limit void ratios and shearing strength index. It is concluded that the overall outline coefficient, sphericity, angularity could be taken as the key shape parameters to distinguish grains; and these key parameters are related closely with the angle of dilation and critical state angle as well. The proposed method can be used as an effective means to accomplish the sand particle shape quantification; and the key shape parameters can also be applied to the mechanical properties analysis and the related numerical simulation work.
语种	英语
ISSN	1000-7598
收录类别	EI ; 中文核心期刊要目总览 ; 中国科技核心期刊
EI入藏号	20112114007253
出版者	Academia Sinica, Wuhan, 430071, China
文献类型	期刊论文
条目标识符	http://ir.cug.edu.cn/handle/2XU834YA/271406
专题	教学院系_数学与物理学院
通讯作者	Liu, Qing-Bing
作者单位	1.Faculty of Engineering, China University of Geosciences, Wuhan 430074, China 2.Department of Civil Engineering and Engineering Mechanics, University of Arizona, Tucson 85721, United States
推荐引用方式 GB/T 7714	Liu, Qing-Bing,Xiang, Wei,Budhu, M.,et al. Study of particle shape quantification and effect on mechanical property of sand[J]. Yantu Lixue/Rock and Soil Mechanics,2011,32(SUPPL. 1):190-197.
APA	Liu, Qing-Bing,Xiang, Wei,Budhu, M.,&Cui, De-Shan.(2011).Study of particle shape quantification and effect on mechanical property of sand.Yantu Lixue/Rock and Soil Mechanics,32(SUPPL. 1),190-197.
MLA	Liu, Qing-Bing,et al."Study of particle shape quantification and effect on mechanical property of sand".Yantu Lixue/Rock and Soil Mechanics 32.SUPPL. 1(2011):190-197.