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http://dx.doi.org/10.21729/ksds.2020.13.3.45

Simulation of the Debris Flow Using FLO-2D According to Curve-shape Changes in Bed Slopes  

Jung, Hyo Jun (Dept. of Civil Engineering, Hongik Univ.)
Yoo, Hyung Ju (Dept. of Civil Engineering, Hongik Univ.)
Lee, Seung Oh (Dept. of Civil Engineering, Hongik Univ.)
Publication Information
Journal of Korean Society of Disaster and Security / v.13, no.3, 2020 , pp. 45-58 More about this Journal
Abstract
Due to a high portion of mountainous terrains in Korea, debris flow and its disasters have been increased. In addition, recently localized flash-floods caused by climate change should add frequencies and potential risks. Grasping and understanding the behaviors of debris flow would allow us to prevent the consequent disasters caused by its occurrence. In this study, we developed a number of cases by changing the bottom slopes and their curvatures and investigated their effects on potential damage caused by the debris flow using FLO-2D. As simulating each bed slopes we analyzed for velocity, depth, impact, reach distance, and reach shape. As a result the lower the average slope, the greater the influence of its curvature and the numerical results were analyzed with showed a well-marked difference in impact stress and flow velocity. The result from this study could be referred for protecting from the debris flows when design countermeasure structures in mountainous regions.
Keywords
Debris flows; Shape of slope; FLO-2D; Risk management;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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