Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Liquefaction of Granular Soils at the Microscale
In this study, we introduce results of a novel coupled pore-scale model of pore-fluid interacting with discrete particles for soil liquefaction. A mircoscale idealization of the solid phase is achieved using the discrete element method (DEM) while the fluid phase is modeled at a mesoscale using the lattice Boltzmann method (LBM). The fluid forces applied on the particles are calculated based on the momentum exchange between the fluid and particles. The proposed approach is used to model liquefaction of a saturated granular soil deposit subjected to seismic excitations. Results of conducted simulations suggest that liquefaction is due to reduction in void space during shaking that leads to buildup in pore-fluid pressure.
Liquefaction of Granular Soils at the Microscale
In this study, we introduce results of a novel coupled pore-scale model of pore-fluid interacting with discrete particles for soil liquefaction. A mircoscale idealization of the solid phase is achieved using the discrete element method (DEM) while the fluid phase is modeled at a mesoscale using the lattice Boltzmann method (LBM). The fluid forces applied on the particles are calculated based on the momentum exchange between the fluid and particles. The proposed approach is used to model liquefaction of a saturated granular soil deposit subjected to seismic excitations. Results of conducted simulations suggest that liquefaction is due to reduction in void space during shaking that leads to buildup in pore-fluid pressure.
Liquefaction of Granular Soils at the Microscale
El Shamy, Usama (Autor:in) / Abdelhamid, Yasser (Autor:in)
IFCEE 2015 ; 2015 ; San Antonio, Texas
IFCEE 2015 ; 1237-1245
17.03.2015
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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