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

doi:10.1016/j.partic.2020.09.008

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Mesoscale analysis of the suction stress characteristic curve for unsaturated granular materials
	Wang XL(王晓亮)3; Zhang Z(张珍)2; Li JC(李家春)1,2; Liu QQ(刘青泉)3
刊名	PARTICUOLOGY
	2021-06-01
卷号	56 页码:183-192
关键词	Suction stress Liquid bridge Unsaturated granular material Discrete element method
ISSN号	1674-2001
DOI	10.1016/j.partic.2020.09.008
通讯作者	Wang, Xiaoliang() ; Li, Jiachun(jcli05@imech.ac.cn)
英文摘要	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.
分类号	二类
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]
WOS研究方向	Engineering ; Materials Science
语种	英语
WOS记录号	WOS:000637319400018
资助机构	National Natural ScienceFoundation of China ; Beijing Institute of Technology Research Fund Program for YoungScholars ; National Key R&D Program of China
其他责任者	Wang, Xiaoliang ; Li, Jiachun
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/86476]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 3.Beijing Inst Technol, Sch Aerosp Engn, Dept Mech, Beijing 100081, 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.