Development of a particle-based method for simulation of large-scale slope failures caused by an earthquake

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06179
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Tottori University
• Principal Investigator: ONO Yusuke 鳥取大学, 工学研究科, 准教授 (00346082)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 地震地すべり / 斜面崩壊 / 数値解析 / SPH法

Outline of Final Research Achievements

A simulation model to reproduce the process of large-scale slope failures induced by an earthquake has been developed based on the SPH method which can deal with large-scale deformation of continuum body. The preliminary results of this study are as follows. (1) An analytical model to handle the slip surface (discontinuous surface) was developed. (2) The simulation obtained the capability of three-dimensional analysis. Furthermore, parallelization code using OpenMP library were implemented. (3) Reproduction analysis of the Aso Bridge landslide in the 2008 Iwate-Miyagi Nairiku Earthquake and the Aso Bridge Landslide in the 2016 Kumamoto earthquake were conducted. (4) A coupled analysis method of a continuum body and rigid block by SPH method was developed.

Free Research Field

地震工学