Mesoscale analysis of the suction stress characteristic curve for unsaturated granular materials

doi:10.1016/j.partic.2020.09.008

IMECH-IR > 流固耦合系统力学重点实验室

	Mesoscale analysis of the suction stress characteristic curve for unsaturated granular materials
	Wang XL(王晓亮)1 ; Zhang Z(张珍)2 ; Li JC(李家春)2,3 ; Liu QQ(刘青泉)1
通讯作者	Wang, Xiaoliang() ; Li, Jiachun(jcli05@imech.ac.cn)
发表期刊	PARTICUOLOGY
	2021-06-01
卷号	56 页码:183-192
ISSN	1674-2001
摘要	There is still no theoretical framework accounting for linkage between seepage and deformation of unsaturated granular materials. Using a mesoscale liquid bridge model, we propose the first approach for deriving the suction stress characteristic curve (SSCC). Then, we verify the method by obtaining both the soil -water characteristic curve and SSCC for cubic and tetrahedral granular packing. The approach is further validated by generating the SSCCs of granular packings with different particle size distributions. On this basis, a new two -parameter model is suggested that satisfactorily predicts the SSCCs of various real granular materials. The nonlinear variation of strength versus suction is also properly described by a new formula for three kinds of soil. We believe that this SSCC model can help resolve solid -fluid coupling in seepage and deformation problems in unsaturated granular engineering. (C) 2020 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
关键词	Suction stress Liquid bridge Unsaturated granular material Discrete element method
DOI	10.1016/j.partic.2020.09.008
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000637319400018
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Chemical ; Materials Science, Multidisciplinary
资助项目	National Natural ScienceFoundation of China[12032005] ; National Natural ScienceFoundation of China[11602278] ; Beijing Institute of Technology Research Fund Program for YoungScholars ; National Key R&D Program of China[2018YFC1505504]
项目资助者	National Natural ScienceFoundation of China ; Beijing Institute of Technology Research Fund Program for YoungScholars ; National Key R&D Program of China
论文分区	二类
力学所作者排名	1
RpAuthor	Wang, Xiaoliang ; Li, Jiachun
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/86477
专题	流固耦合系统力学重点实验室
作者单位	1.Beijing Inst Technol, Sch Aerosp Engn, Dept Mech, Beijing 100081, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang XL,Zhang Z,Li JC,et al. Mesoscale analysis of the suction stress characteristic curve for unsaturated granular materials[J]. PARTICUOLOGY,2021,56:183-192.
APA	王晓亮,张珍,李家春,&刘青泉.(2021).Mesoscale analysis of the suction stress characteristic curve for unsaturated granular materials.PARTICUOLOGY,56,183-192.
MLA	王晓亮,et al."Mesoscale analysis of the suction stress characteristic curve for unsaturated granular materials".PARTICUOLOGY 56(2021):183-192.

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