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http://dx.doi.org/10.12814/jkgss.2020.19.3.001

Numerical Analysis of Debris Flow Using Drone Images and NFLOW  

Lee, Seungjoo (Department of Regional Infrastructure Engineering, Kangwon National University)
Lim, Hyuntaek (Department of Regional Infrastructure Engineering, Kangwon National University)
Lim, Moojae (Department of Regional Infrastructure Engineering, Kangwon National University)
Lee, Eungbeom (Department of Regional Infrastructure Engineering, Kangwon National University)
Lee, Kang-Il (Department of Civil Engineering, Daejin University)
Kim, Yongseong (Department of Regional Infrastructure Engineering, Kangwon National University)
Publication Information
Journal of the Korean Geosynthetics Society / v.19, no.3, 2020 , pp. 1-8 More about this Journal
Abstract
In this study, numerical analysis of debris flow was performed using the SPH (Smoothed Particle Hydrodynamics) technique to analyze the mechanism of debris flow, and the applicability of soil parameters was verified by comparison with previous studies. In addition, after performing aerial photographic survey using a drone, a topographic model was created based on this survey to check the applicability of the site to the valley part of Jagul Mountain basin. And after numerical analysis of debris flow was performed using NFLOW, and the result was compared and analyzed with the existing satellite image based method. As a result of this study, the numerical analysis method using drone image and NFLOW was found to have a higher applicability to predicting the impact of debris flow, because it can reflect the actual topography better than the existing method based on satellite imagery. Therefore, it is considered that this study can be used as basic data to establish the preventive measures for debris flow such as location selection of the eruption control dam.
Keywords
Debris flow; SPH analysis; Drone; 3D scanning;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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