Advances in debris-flow hazard assessment in mountainous area

Sangseom Jeong; Yongmin Kim; Kwangwoo Lee; Junghwan Kim

doi:10.3208/jgssp.ATC1-3-18

Advances in debris-flow hazard assessment in mountainous area

Sangseom Jeong, Yongmin Kim, Kwangwoo Lee, Junghwan Kim

Department of Civil and Environmental Engineering

Research output: Contribution to conference › Paper › peer-review

1 Citation (Scopus)

Abstract

In this paper, the erosion and entrainment behavior of debris flow is investigated by three-dimensional finite element analysis based on Coupled Eulerian-Lagrangian (CEL) method. Special attention is given to the strain softening model in capturing the soil strength loss under large strain. The appropriate case studies needed for verifying the three-dimensional (3D) numerical methodology are presented. It is found that the numerical method shows good agreement with the general trend observed by the experimental tests and thus, represents a realistic phenomenon of debris flow. It is found from that a rigorous numerical analysis can provide a potential influence of debris flow and guideline on countermeasures.

Original language	English
Pages	1137-1142
Number of pages	6
DOIs	https://doi.org/10.3208/jgssp.ATC1-3-18
Publication status	Published - 2015
Event	15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015 - Fukuoka, Kyushu, Japan Duration: 2015 Nov 9 → 2015 Nov 13

Other

Other	15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015
Country	Japan
City	Fukuoka, Kyushu
Period	15/11/9 → 15/11/13

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2011-0030040).

All Science Journal Classification (ASJC) codes

Geotechnical Engineering and Engineering Geology
Soil Science

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10.3208/jgssp.ATC1-3-18

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Cite this

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title = "Advances in debris-flow hazard assessment in mountainous area",

abstract = "In this paper, the erosion and entrainment behavior of debris flow is investigated by three-dimensional finite element analysis based on Coupled Eulerian-Lagrangian (CEL) method. Special attention is given to the strain softening model in capturing the soil strength loss under large strain. The appropriate case studies needed for verifying the three-dimensional (3D) numerical methodology are presented. It is found that the numerical method shows good agreement with the general trend observed by the experimental tests and thus, represents a realistic phenomenon of debris flow. It is found from that a rigorous numerical analysis can provide a potential influence of debris flow and guideline on countermeasures.",

author = "Sangseom Jeong and Yongmin Kim and Kwangwoo Lee and Junghwan Kim",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2011-0030040).; 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015 ; Conference date: 09-11-2015 Through 13-11-2015",

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T1 - Advances in debris-flow hazard assessment in mountainous area

AU - Jeong, Sangseom

AU - Kim, Yongmin

AU - Lee, Kwangwoo

AU - Kim, Junghwan

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2011-0030040).

PY - 2015

Y1 - 2015

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AB - In this paper, the erosion and entrainment behavior of debris flow is investigated by three-dimensional finite element analysis based on Coupled Eulerian-Lagrangian (CEL) method. Special attention is given to the strain softening model in capturing the soil strength loss under large strain. The appropriate case studies needed for verifying the three-dimensional (3D) numerical methodology are presented. It is found that the numerical method shows good agreement with the general trend observed by the experimental tests and thus, represents a realistic phenomenon of debris flow. It is found from that a rigorous numerical analysis can provide a potential influence of debris flow and guideline on countermeasures.

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