CLC number:
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2023-03-31
Cited: 0
Clicked: 1248
Citations: Bibtex RefMan EndNote GB/T7714
https://orcid.org/0000-0001-6884-2763
Tuo WANG, Feng-shou ZHANG, Pei WANG. Experimental and numerical study of seepage-induced suffusion under K0 stress state[J]. Journal of Zhejiang University Science A, 2023, 24(4): 319-331.
@article{title="Experimental and numerical study of seepage-induced suffusion under K0 stress state",
author="Tuo WANG, Feng-shou ZHANG, Pei WANG",
journal="Journal of Zhejiang University Science A",
volume="24",
number="4",
pages="319-331",
year="2023",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2200198"
}
%0 Journal Article
%T Experimental and numerical study of seepage-induced suffusion under K0 stress state
%A Tuo WANG
%A Feng-shou ZHANG
%A Pei WANG
%J Journal of Zhejiang University SCIENCE A
%V 24
%N 4
%P 319-331
%@ 1673-565X
%D 2023
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2200198
TY - JOUR
T1 - Experimental and numerical study of seepage-induced suffusion under K0 stress state
A1 - Tuo WANG
A1 - Feng-shou ZHANG
A1 - Pei WANG
J0 - Journal of Zhejiang University Science A
VL - 24
IS - 4
SP - 319
EP - 331
%@ 1673-565X
Y1 - 2023
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2200198
Abstract: suffusion in gap-graded soil involves selective erosion of fine particles through the pores formed by coarse particles under seepage forces. As the fines content (FC) decreases, the hydraulic and mechanical behavior of the soil will change, posing a huge threat to engineering safety. In this study, we first conduct a series of experimental tests of suffusion by using gap-graded soils and then analyze the evolution process of suffusion and the effect of the hydraulic gradient. Subsequently, according to the physical model, a discrete element method (DEM) numerical model with dynamic fluid mesh (DFM) is developed to extend the experimental study to the pore scale. Our results reveal the migration process of fines and the formation of erosion zones. A parametric study is then conducted to investigate the effect of the hydraulic gradient, FC, and K0 pressure (which limits the lateral displacement of the sample and applies vertical pressure) on eroded weight. The results show that the eroded weight increases with the increase of the hydraulic gradient and FC but decreases with the increase of K0 pressure.
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