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A 2D DEM–LBM study on soil behaviour due to locally injected fluid
Citation
Cui, X and Li, J and Chan, A and Chapman, D, A 2D DEM-LBM study on soil behaviour due to locally injected fluid, Particuology, 10, (2) pp. 242-252. ISSN 1674-2001 (2012) [Refereed Article]
Copyright Statement
Copyright 2011 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences
DOI: doi:10.1016/j.partic.2011.10.002
Abstract
Leakage from underground pipes could result in foundations being undermined and cause damage to
adjacent infrastructure. Soil particles surrounding the leaking area could be mobilised, displaced, and
even washed out of the soil matrix by the leaking fluid, generating a void or cavity. A two-dimensional
simulation using a coupled discrete element method and lattice Boltzmann method (DEM–LBM) has been
used to investigate the behaviour of a soil bed subject to a locally injected fluid, which represents a leak in
a pipe. Various values of inter-particle surface energy were also adopted to model the mechanical effects
of cohesive particles. The results suggest that the inter-particle surface energy greatly influences the bed
response with respect to the leaking fluid, including the excess pressure initiating the cavity, the cavity
shape and its evolution rate.
Item Details
Item Type: | Refereed Article |
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Keywords: | discrete element method, Lattice Boltzmann method, granular bed, locally injected fluid, cohesive particles, surface energy |
Research Division: | Engineering |
Research Group: | Civil engineering |
Research Field: | Civil geotechnical engineering |
Objective Division: | Construction |
Objective Group: | Construction processes |
Objective Field: | Civil construction processes |
UTAS Author: | Chan, A (Professor Andrew Chan) |
ID Code: | 103306 |
Year Published: | 2012 |
Web of Science® Times Cited: | 36 |
Deposited By: | Office of the School of Engineering |
Deposited On: | 2015-10-02 |
Last Modified: | 2017-11-03 |
Downloads: | 0 |
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