3D SIMULATION OF THE ARATOZAWA LANDSLIDES BASE ON SMOOTHED PARTICLE HYDRODYNAMICS METHOD

Abstract

 In this study, a three-dimensional simulation of the Aratozawa landslide due to the 2008 Iwate-Miyagi Inland earthquake based on the Smoothed Particle Hydrodynamics (SPH) method were conducted. The numerical results were compared with the observed damages especially with respect to the flow distance of the landslide. In order to obtain the material strength parameters used for the simulation, the field survey and the laboratory test were performed. The numerical results by the SPH method showed good agreement with the maximum flow distance caused by the 2008 Aratozawa landslide.