| Issue |
E3S Web of Conf.
Volume 415, 2023
8th International Conference on Debris Flow Hazard Mitigation (DFHM8)
|
|
|---|---|---|
| Article Number | 02011 | |
| Number of page(s) | 4 | |
| Section | Experiments and Modeling | |
| DOI | https://doi.org/10.1051/e3sconf/202341502011 | |
| Published online | 18 August 2023 | |
Numerical Simulation Reflecting Buildings in Area Damaged by Debris flow
1 Granduate School of Disaster Prevention, Kangwon National University, S.Korea
2 Granduate School of Disaster Prevention, Kangwon National University, S.Korea
3 School of Civil Engineering, Chungbuk National University, S.Korea
4 CND, Samcheok-si, Gangwon-do, S.Korea
5 Granduate School of Disaster Prevention, Kangwon National University, S.Korea
* Corresponding author: kwjun@kangwon.ac.kr
More than 80% of average annual precipitation in South Korea occurs between June and September owing to heavy rainfall and typhoons in summer, and its land is vulnerable to mountain disasters (landslides and debris flow) as 63% of it is mountainous areas. In this study, an area damaged by debris flow in Wondeok-eup, Samcheok-si, Gangwon-do, Korea under the influence of Typhoon Mitag in 2019 was surveyed and numerical modeling was performed. Topographic data were created using the 5m grid DEM derived through the field survey data and GIS technique as well as the building data of the damaged area, and debris flow modeling was performed using the Hyper KANAKO model. A comparison with the inundation trace map showed that the simulation results based on topographic data that reflected buildings exhibited similar flow patterns and characteristics to the actual damage.
© The Authors, published by EDP Sciences, 2023
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