Advances in debris-flow hazard assessment in mountainous area

Sangseom Jeong, Yongmin Kim, Kwangwoo Lee, Junghwan Kim

Research output: Contribution to conferencePaper

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 languageEnglish
Pages1137-1142
Number of pages6
DOIs
Publication statusPublished - 2015 Jan 1
Event15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015 - Fukuoka, Kyushu, Japan
Duration: 2015 Nov 92015 Nov 13

Other

Other15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015
CountryJapan
CityFukuoka, Kyushu
Period15/11/915/11/13

Fingerprint

hazard assessment
Debris
debris flow
Hazards
finite element analysis
soil strength
softening
entrainment
numerical method
Numerical analysis
Erosion
Numerical methods
methodology
case studies
erosion
Soils
Finite element method
mountainous area
testing
analysis

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Soil Science

Cite this

Jeong, S., Kim, Y., Lee, K., & Kim, J. (2015). Advances in debris-flow hazard assessment in mountainous area. 1137-1142. Paper presented at 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015, Fukuoka, Kyushu, Japan. https://doi.org/10.3208/jgssp.ATC1-3-18
Jeong, Sangseom ; Kim, Yongmin ; Lee, Kwangwoo ; Kim, Junghwan. / Advances in debris-flow hazard assessment in mountainous area. Paper presented at 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015, Fukuoka, Kyushu, Japan.6 p.
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Jeong, S, Kim, Y, Lee, K & Kim, J 2015, 'Advances in debris-flow hazard assessment in mountainous area', Paper presented at 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015, Fukuoka, Kyushu, Japan, 15/11/9 - 15/11/13 pp. 1137-1142. https://doi.org/10.3208/jgssp.ATC1-3-18

Advances in debris-flow hazard assessment in mountainous area. / Jeong, Sangseom; Kim, Yongmin; Lee, Kwangwoo; Kim, Junghwan.

2015. 1137-1142 Paper presented at 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015, Fukuoka, Kyushu, Japan.

Research output: Contribution to conferencePaper

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N2 - 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.

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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Jeong S, Kim Y, Lee K, Kim J. Advances in debris-flow hazard assessment in mountainous area. 2015. Paper presented at 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2015, Fukuoka, Kyushu, Japan. https://doi.org/10.3208/jgssp.ATC1-3-18