DEVELOPMENT OF SEEPAGE FAILURE ANALYSIS METHOD OF GROUND WITH SMOOTHED PARTICLE HYDRODYNAMICS

Seepage failure including flowage deformation and hydraulic fracture, plays an important role on damage of dyke under flood, flow of ground caused by liquefaction and improvement of ground by injection and/or penetration procedures. These problems must be solved with interaction among three phases: solid (soil), liquid (water) and gas (air). Discrete analysis (e.g. DEM) is adapted to abruption, failure and flowage, but unsuitable procedure to analysis domain of large scale. Continuum analysis has opposite properties to that.In this paper, there is a new attempt to develop the procedure which fuses discrete and continuum analyses by ‘Smoothing Particle Hydrodynamics (SPH)’ with account for the interaction among three phases.