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http://dx.doi.org/10.14346/JKOSOS.2016.31.2.76

Analysis of Initial Mass Distribution and Facility Shape to Determine Structural Alternative for Hazardous Zone Vulnerable to Debris Flow Disaster  

Seong, Joo-Hyun (Institute of Infrastructure Safety, Korea Infrastructure Safety Corporation)
Oh, Seung Myeong (Department of Safety Engineering, Incheon National University)
Jung, Younghun (Water Resources Research Center, K-water Institute)
Byun, Yoseph (Institute of Infrastructure Safety, Korea Infrastructure Safety Corporation)
Song, Chang Geun (Department of Safety Engineering, Incheon National University)
Publication Information
Journal of the Korean Society of Safety / v.31, no.2, 2016 , pp. 76-82 More about this Journal
Abstract
A 2-D hydrodynamic model for predicting the movement of debris flow was developed. The developed model was validated against a dam break flow problem conducted in EU CADAM project, and the performance of the model was shown to be satisfactory. In order to suggest structural alternative for hazardous zone vulnerable to debris flow disaster, two types of initial mass distribution and two shapes of defensive structure were considered. It was found that 1) the collapse of debris mass initiated with square pyramid shape induced more damage compared with that of cubic shape; and 2) a defensive structure with semi-circular shape was vulnerable to debris flow disaster in terms of debris control or primary defense compared with that of rectangular-shaped structure.
Keywords
debris flow disaster; structural alternative; hydrodynamic model; initial debris distribution; defensive structure;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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1 J. R. Choi, G. W. Kim, Y. K. Jee and I. C. Park "Development and Application of Precise Debris Flow Risk Assessment Index in Urban Area", Journal of Korean Society of Hazard Mitigation, Vol. 15, No. 3, pp. 107-113, 2015.
2 J. S. Lee, C. G. Song, H. T. Kim and S. O. Lee "Risk Analysis Considering the Topography Characteristics of Debris Flow Occurrence Area", Journal of Korean Society of Hazard Mitigation, Vol. 15, No. 3, pp. 75-82, 2015.   DOI
3 J. S. Lee, C. G. Song, H. T. Kim and S. O. Lee "Effect of Land Slope on Propagation due to Debris Flow Behavior", Journal of Korean Society of Safety, Vol. 30, No. 3, pp. 52-58, 2015.   DOI
4 H. S. Kang and Y. T. Kim "Study on Physical Vulnerability Curves of Buildings by Numerical Simulation of Debris Flow", Journal of Korean Society of Hazard Mitigation, Vol. 15, No. 5, pp. 155-167, 2015.
5 C. G. Song and S. O. Lee "Hydraulic Characteristics of Dam Break Flow by Flow Resistance Stresses and Initial Depths," Journal of Korea Water Resources Association, Vol. 47, No. 11, pp. 1077-1086.   DOI
6 C. G. Song, I. W. Seo and Y. D. Kim "Analysis of Secondary Current Effect in the Modeling of Shallow Flow in Open Channels", Advances in Water Resources, Vol. 41, pp. 29-48, 2012.   DOI
7 I. W. Seo, Y. D. Kim and C. G. Song "Validation of Depth-averaged Flow Model using Flat-bottomed Benchmark Problems," The Scientific World Journal, Vol. 2014, Article ID 197539, 2014.
8 M. Morris, "CADAM-EU Concerted Action on Dam break Modeling.", Report No. SR 571, HR Wallingford UK.
9 J. H. Ryu, H. J. Sung and Y. Kim "A Study on the Major Factors Causing the Sediment Disasters by Case Analysis.", Journal of Korean Society of Hazard Mitigation, Vol. 14, No. 6, pp. 151-157, 2014.   DOI