| Field |
Value |
Language |
|
dc.contributor.author |
Dai, S
https://orcid.org/0000-0001-8543-1448
|
|
|
dc.contributor.author |
He, X
https://orcid.org/0000-0001-5336-3663
|
|
|
dc.contributor.author |
Tong, C
https://orcid.org/0000-0001-5907-2904
|
|
|
dc.contributor.author |
Gao, F |
|
|
dc.contributor.author |
Zhang, S |
|
|
dc.contributor.author |
Sheng, D
https://orcid.org/0000-0002-1665-6931
|
|
|
dc.date.accessioned |
2024-03-25T02:44:42Z |
|
|
dc.date.available |
2024-03-25T02:44:42Z |
|
|
dc.identifier.citation |
CANADIAN GEOTECHNICAL JOURNAL |
|
|
dc.identifier.issn |
0008-3674 |
|
|
dc.identifier.issn |
1208-6010 |
|
|
dc.identifier.uri |
http://hdl.handle.net/10453/177072
|
|
|
dc.description.abstract |
<jats:p> Internal erosion refers to the movement of fine particles within soil framework due to subsurface water seepage. Existing criteria for assessing internal erosion usually are based on static loading, and the effect of cyclic load is not considered. Additionally, there are limited studies to examine the particle-size distribution and origin of eroded fine particles. This study presents an experimental investigation that examines the impact of cyclic loading on internal stability through a series of seepage tests. The composition and origin of lost particles are quantitatively studied using particle staining and image recognition techniques. With increasing hydraulic gradient, particle erosion progresses from top layer to bottom layer, with a gradual increase in the maximum particle size of eroded particles from each layer. After significant loss of particles, the specimens reach a state of transient equilibrium, resulting in a gradual slowdown of both particle loss rate and average flow velocity. The results indicate that cyclic loading promotes massive particle loss and causes erosion failure of specimens that are considered stable according to existing criteria. The reason is that under cyclic loading, local hydraulic gradients is oscillating, and a larger than average hydraulic gradient may occur, which is responsible for the internal instability. The analysis suggests that existing criteria can provide a reasonable assessment of the relative stabilities of specimens under static loads but fail to capture the stabilities under cyclic loading conditions. </jats:p> |
|
|
dc.language |
English |
|
|
dc.publisher |
CANADIAN SCIENCE PUBLISHING |
|
|
dc.relation |
http://purl.org/au-research/grants/arc/DE220100763
|
|
|
dc.relation.ispartof |
CANADIAN GEOTECHNICAL JOURNAL |
|
|
dc.relation.isbasedon |
10.1139/cgj-2023-0325 |
|
|
dc.rights |
info:eu-repo/semantics/openAccess |
|
|
dc.subject |
0905 Civil Engineering, 0907 Environmental Engineering |
|
|
dc.subject.classification |
Geological & Geomatics Engineering |
|
|
dc.subject.classification |
4005 Civil engineering |
|
|
dc.subject.classification |
4019 Resources engineering and extractive metallurgy |
|
|
dc.title |
Stability of sandy soils against internal erosion under cyclic loading and quantitatively examination of the composition and origin of eroded particles |
|
|
dc.type |
Journal Article |
|
|
utslib.for |
0905 Civil Engineering |
|
|
utslib.for |
0907 Environmental Engineering |
|
|
pubs.organisational-group |
University of Technology Sydney |
|
|
pubs.organisational-group |
University of Technology Sydney/Faculty of Engineering and Information Technology |
|
|
pubs.organisational-group |
University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering |
|
|
pubs.organisational-group |
University of Technology Sydney/Strength - CAMGIS - Centre for Advanced Modelling and Geospatial lnformation Systems |
|
|
utslib.copyright.status |
open_access |
* |
|
dc.date.updated |
2024-03-25T02:44:40Z |
|
|
pubs.publication-status |
Published online |
|
