Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
DEM Simulations of the Effect of Desaturation on Liquefaction Hazard Mitigation
Earthquake-induced liquefaction is always a concern when the soil near the surface of a site is composed of relatively loose saturated sand. One of the liquefaction mitigation methods is to induce gas bubbles into the deposit to reduce the degree of saturation. A coupled pore-scale model is presented herein to investigate liquefaction resistance of desaturated granular materials. The multiphase fluid, which mimics the behavior of air and water, is modeled using the multiphase single component lattice Boltzmann method. The solid phase is modeled using the discrete element method. The coupled framework is utilized to study the behavior of a soil deposit with gas bubbles-induced desaturation during an earthquake loading. Simulation results suggest that the risk of liquefaction effectively decreases with small reduction in the degree of saturation.
DEM Simulations of the Effect of Desaturation on Liquefaction Hazard Mitigation
Earthquake-induced liquefaction is always a concern when the soil near the surface of a site is composed of relatively loose saturated sand. One of the liquefaction mitigation methods is to induce gas bubbles into the deposit to reduce the degree of saturation. A coupled pore-scale model is presented herein to investigate liquefaction resistance of desaturated granular materials. The multiphase fluid, which mimics the behavior of air and water, is modeled using the multiphase single component lattice Boltzmann method. The solid phase is modeled using the discrete element method. The coupled framework is utilized to study the behavior of a soil deposit with gas bubbles-induced desaturation during an earthquake loading. Simulation results suggest that the risk of liquefaction effectively decreases with small reduction in the degree of saturation.
DEM Simulations of the Effect of Desaturation on Liquefaction Hazard Mitigation
El Shamy, Usama (Autor:in) / Nateghi, Ataollah (Autor:in)
International Foundations Congress and Equipment Expo 2021 ; 2021 ; Dallas, Texas
IFCEE 2021 ; 61-68
06.05.2021
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
DEM Simulations of the Effect of Desaturation on Liquefaction Hazard Mitigation
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