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A platform for research: civil engineering, architecture and urbanism
Seepage Failure and Erosion of Ground with Air Bubble Dynamics
We report on the generation of air bubbles in a void and how this can affect seepage failure. In order to study this phenomenon, we conducted model tests with a new numerical simulation. During the tests we observed deformation-failure in sandy ground inundated with pore water that contained various values of dissolved oxygen. We investigated the process of seepage failure both with and without air bubbles, using PIV image analysis. It was found that the addition of air bubbles promoted damage to the ground even under low hydraulic gradients, and therefore we concluded that this local-progressive deformation was caused by the dynamics of air bubbles. We also succeeded in simulating these phenomena by a newly-developed Smoothing Particle Hydrodynamics (SPH) method that involves a process of generating air bubbles and enabling interactions among three phases (soil-liquid-gas)..
Seepage Failure and Erosion of Ground with Air Bubble Dynamics
We report on the generation of air bubbles in a void and how this can affect seepage failure. In order to study this phenomenon, we conducted model tests with a new numerical simulation. During the tests we observed deformation-failure in sandy ground inundated with pore water that contained various values of dissolved oxygen. We investigated the process of seepage failure both with and without air bubbles, using PIV image analysis. It was found that the addition of air bubbles promoted damage to the ground even under low hydraulic gradients, and therefore we concluded that this local-progressive deformation was caused by the dynamics of air bubbles. We also succeeded in simulating these phenomena by a newly-developed Smoothing Particle Hydrodynamics (SPH) method that involves a process of generating air bubbles and enabling interactions among three phases (soil-liquid-gas)..
Seepage Failure and Erosion of Ground with Air Bubble Dynamics
Maeda, Kenichi (author) / Sakai, Hirotaka (author)
GeoShanghai International Conference 2010 ; 2010 ; Shanghai, China
2010-05-14
Conference paper
Electronic Resource
English
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