TY - GEN
T1 - Numerical modeling and analysis of suffusion patterns for granular soils
AU - Tao, Hui
AU - Tao, Junliang
N1 - Publisher Copyright:
© ASCE.
PY - 2017
Y1 - 2017
N2 - Migration of fine particles through constrictions between coarser fabrics by seepage force is the process termed suffusion. A coarser soil structure resulted from fines loss will lead to change in hydraulic and mechanical properties such as increased permeability, decreased strength and stability which can cause significant settlement or failure of the levees, embankments and dams. This paper presents a coupled Computational Fluid Dynamics and Discrete Element Method (CFD-DEM) approach to model the suffusion process. The concept of transition layer is defined and used to explain the suffusion process and patterns. The effects of particle size distribution, seepage velocity, fines content and initial void ratio on the transition layer in suffusion are investigated.
AB - Migration of fine particles through constrictions between coarser fabrics by seepage force is the process termed suffusion. A coarser soil structure resulted from fines loss will lead to change in hydraulic and mechanical properties such as increased permeability, decreased strength and stability which can cause significant settlement or failure of the levees, embankments and dams. This paper presents a coupled Computational Fluid Dynamics and Discrete Element Method (CFD-DEM) approach to model the suffusion process. The concept of transition layer is defined and used to explain the suffusion process and patterns. The effects of particle size distribution, seepage velocity, fines content and initial void ratio on the transition layer in suffusion are investigated.
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U2 - 10.1061/9780784480472.051
DO - 10.1061/9780784480472.051
M3 - Conference contribution
AN - SCOPUS:85018740005
T3 - Geotechnical Special Publication
SP - 487
EP - 496
BT - Geotechnical Special Publication
A2 - Brandon, Thomas L.
A2 - Valentine, Richard J.
PB - American Society of Civil Engineers (ASCE)
T2 - Geotechnical Frontiers 2017
Y2 - 12 March 2017 through 15 March 2017
ER -