Entrainment effect on impact force of debris flow on check dam by using coupled Lagrangian - Eulerian (CEL) method

Kwangwoo Lee, S. Jeong

Research output: Contribution to conferencePaperpeer-review

Abstract

The large deformation analysis for debris flows was conducted by using coupled Eulerian- Lagrangian (CEL) technique in ABAQUS. The emphasis was on analyzing the effects of the entrainment process on impact force of debris flows. To consider the entrainment of soil layer, the shear strength of the soil layer changed from the solid state to the fluid state according to the deviatoric plastic strain. As a result, the impact pressure of the debris flows considering the entrainment process was more extensive than the analysis without entrainment. This rigorous FE analysis method can indicate the potential influence of debris flows and estimation of dynamic impact force on check dam. This method could be used to hazard mitigation evaluation and the design of the check dam.

Original languageEnglish
Publication statusPublished - 2020
Event16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2019 - Taipei, Taiwan, Province of China
Duration: 2019 Oct 142019 Oct 18

Conference

Conference16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2019
Country/TerritoryTaiwan, Province of China
CityTaipei
Period19/10/1419/10/18

Bibliographical note

Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (No. 2018R1A6A1A08025348)

Publisher Copyright:
Copyright © Soil Mechanics and Geotechnical Engineering, ARC 2019.All rights reserved.

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

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