第三部門：材料・複雑現象の力学（B)

[S03B-02] Destruction Assessment Simulation of Open Sabo Dam Utilizing DEM

*Osamu SHIMAKAWA¹, Toshiyuki HORIGUCHI¹, Masuhiro BEPPU¹, Satoshi KATSUKI¹ (1. National Defense Academy)

Keywords:debris flow, DEM, open type sabo dam, Reproducibility experiment, balsa

This study verifies the destruction phenomenon of an open Sabo dam considering the joint part. In addition, the analysis elucidates the difference of destruction process using DEM in case of each joint part strength. Therefore, the open Sabo dam models are three types with different shape. In the experimental result, TypeA was not damaged, TypeB and TypeC had led to collapse due to bouldery debris flows. It was found that the damage of an open Sabo dam was dependent on the strength of the joint part and the initial deposition amount.