An elastic-viscoplastic double-yield-surface model for coarse-grained soils considering particle breakage

被引：26
作者：
Kong, Yufei [1 ]
Xu, Ming [1 ]
Song, Erxiang [1 ]
机构：
[1] Tsinghua Univ, Dept Civil Engn, Beijing 100084, Peoples R China
来源：
COMPUTERS AND GEOTECHNICS | 2017年 / 85卷
关键词：
Constitutive model; Coarse-grained soil; Shear creep; Compression creep; STRESS-STRAIN BEHAVIOR; CONSTITUTIVE MODEL; CREEP; SAND;
D O I：
10.1016/j.compgeo.2016.12.014
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The proper modelling of time-dependent behavior, such as creep and strain rate effects, of coarse-grained soils (e.g., rockfills) is important to predict the long-term deformation of high-fill projects. In this paper, the primary features of coarse-grained soil are discussed, and an elastic-viscoplastic model is proposed for simulating its time-dependent behaviors in both shear and compression. The stress-dependence of the strength, dilatancy/contractibility and creep is carefully considered based on recent experimental findings. Verifications with various experimental results demonstrate that the model is capable of predicting the creep behavior in various stress states satisfactorily. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：59 / 70
页数：12
相关论文
共 52 条
[1]   Scale effects in rockfill behaviour [J].
Alonso, E. E. ;
Tapias, M. ;
Gili, J. .
GEOTECHNIQUE LETTERS, 2012, 2 :155-160
[2]   Long term behaviour and size effects of coarse granular media [J].
Alonso, E. E. ;
Oldecop, L. ;
Pinyol, N. M. .
MECHANICS OF NATURAL SOLIDS, 2009, :255-+
[3]  
AnhDan L, 2006, GEOTECH TEST J, V29, P330
[4]  
[Anonymous], ASTM STP
[5]  
[Anonymous], 2004, INT J GEOMECHANICS, DOI [10.1061/(ASCE)1532-3641(2004)4:3(137), DOI 10.1061/(ASCE)1532-3641(2004)4:3(137)]
[6]  
[Anonymous], 1980, J CONSULT CLIN PSYCH
[7]  
[Anonymous], 2000 COMPUTATIONAL G
[8]   ENGINEERING GEOLOGY OF NORWEGIAN NORMALLY-CONSOLIDATED MARINE CLAYS AS RELATED TO SETTLEMENTS OF BUILDINGS [J].
BJERRUM, L .
GEOTECHNIQUE, 1967, 17 (02) :83-&
[9]  
Cao G., 2012, Study on Post-Construction Settlement of High Fill Foundation in Mountainous Airport
[10]  
den Haan E.J., 1994, VERTICAL COMPRESSION
123456