Numerical Simulation of the Liquefaction Phenomenon by MPSM-DEM Coupled CAES

Koki Nakao, Shinya Inazumi, Tsuyoshi Takahashi, Supakij Nontananandh

Research output: Contribution to journalArticlepeer-review

Abstract

The mechanism of liquefaction and the factors that cause liquefaction behavior have previ-ously been examined and evaluated, both analytically and experimentally; construction including liquefaction countermeasures is being implemented, based on these findings. This study presents a theoretical visualization of the mechanism of liquefaction generation and evaluates the behavior of particles in the ground. Specifically, an MPSM-DEM coupled CAE system (CAES) is employed to view the events beneath the ground, modeled three-dimensionally when an external acceleration is applied to simulate seismic waves and reveals the behavior below the surface. The numerical simulation of the liquefaction phenomenon, as represented by an MPSM-DEM coupled CAES sys-tem, clearly showed the mechanism of liquefaction generation and contributed to the design and accountability of more economical and sustainable liquefaction countermeasures, regardless of the field of specialization.

Original languageEnglish
Article number7517
JournalSustainability (Switzerland)
Volume14
Issue number12
DOIs
Publication statusPublished - 2022 Jun 1

Keywords

  • computer-aided engineering system (CAES)
  • discrete element method (DEM)
  • liquefaction
  • moving particle semi-implicit method (MPSM)

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Geography, Planning and Development
  • Renewable Energy, Sustainability and the Environment
  • Building and Construction
  • Environmental Science (miscellaneous)
  • Energy Engineering and Power Technology
  • Hardware and Architecture
  • Computer Networks and Communications
  • Management, Monitoring, Policy and Law

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