Seepage Failure and Erosion Mechanism of Granular Material With Evolution of Air Bubbles Using SPH

摘要

Seepage failure of granular material and/or granular ground field causes severe geological disaster problems such as dike damage in floods and erosion in fields near oceans, rivers and so on. Moreover, the generation and devel-opment of air bubbles increases the potential of seepage failure and erosion in geological fields. In this paper, we fo-cused on the evolution effect of air bubbles in the pore water of granular material on seepage failure. We performed model tests and developed a new numerical simulation method accounting for flowage deformation and solid-water-air bubble interactions using Smoothed Particle Hydrodynamics (SPH), verified by a comparison with model test results.