日本地球惑星科学連合2018年大会

講演情報

[JJ] Eveningポスター発表

セッション記号 S (固体地球科学) » S-CG 固体地球科学複合領域・一般

[S-CG66] 3次元地質モデリングとシミュレーションの新展開

2018年5月22日(火) 17:15 〜 18:30 ポスター会場 (幕張メッセ国際展示場 7ホール)

コンビーナ:高野 修(石油資源開発株式会社技術研究所)、木村 克己(独立行政法人防災科学技術研究所)

[SCG66-P04] A numerical study of a bounding surface model for submarine landslides

*Yu-Ting Huang1 (1.National Cheng Kung University Dept. of Civil Engineering)

キーワード:ABAQUS, bounding surface model, landslide

Finite element analyses of landslides usually rely on the use of an elastoplastic constitutive model, such as the Mohr-Coulomb model, which may not well describe the softening behavior of geomaterials under loading. Specifically, for submarine landslides that occur in clay layers, the softening behavior should be taken care to achieve a more realistic result. In this study, a bounding surface plasticity model, capable of describing strain softening and clay behaviors, is tested using a commercially-available finite element software, ABAQUS. Validation of the model is conducted against a series of triaxial data exhibiting softening behavior. In addition to the validation, capabilities of the model for describing landsliding are also assessed and presented herein.