Browse > Article
http://dx.doi.org/10.21729/ksds.2019.12.2.65

Evaluation of Slope Stability of Taebaeksan National Park using Detailed Soil Map  

Kim, Young-Hwan (Graduate School of Disaster Prevention, Kangwon National University)
Jun, Byong-Hee (Graduate School of Disaster Prevention, Kangwon National University)
Jun, Kye-Won (Graduate School of Disaster Prevention, Kangwon National University)
Publication Information
Journal of Korean Society of Disaster and Security / v.12, no.2, 2019 , pp. 65-72 More about this Journal
Abstract
More than 64% of Korea's land is occupied by mountain regions, which have terrain characteristics that make it vulnerable to mountain disasters. The trails of Taebaeksan Mountain National Park-the region considered in this study-are located in the vicinity of steep slopes, and therefore, the region is vulnerable to landslides and debris flow during heavy storms. In this study, a slope stability model, which is a deterministic analysis method, was used to examine the potential occurrence of landslides. According to the soil classification of the detailed soil map, the specific weight of soil, effective cohesion, internal friction angle of soil, effective soil depth, and ground slope were used as the parameters of the model, and slope stability was evaluated based on the DEM of a 1 m grid. The results of the slope stability analysis showed that the more hazardous the area was, the closer the ratio of groundwater/effective soil depth is to 1.0. Further, many of the private houses and commercial facilities in the lower part of the national park were shown to be exposed to danger.
Keywords
Taebacksan national park; Slope stability; Detailed soil map;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Acharya, G., De Smedt, F., and Long, N. T. (2006). Assessing Landslide Hazard in GIS: A Case Study from Rasuwa, Nepal. Bulletin of Engineering Geology and the Environment. 65(1): 99-107.   DOI
2 Borga, M., Dalla Fontana, G., and Cazorzi, F. (2002). Analysis of Topographic and Climatic Control on Rainfall-triggered Shallow Landsliding using a Quasi-dynamic Wetness Index. Journal of Hydrology. 268(1-4): 56-71.   DOI
3 Brunsden, D. and Prior, D. B. (1984). Slope instability. Wiley, Chichester.
4 Jun, B. H. (2012). Evaluation of Slope Stability in Umyeon-san Area. Journal of Safety and Crisis Management. 8(5): 227-234.
5 Jun, K. W. and Oh, C. Y. (2011). Study on Risk Analysis of Debris Flow Occurrence Basin using GIS. Journal of the Korean Society of Safety. 26(2): 83-88.   DOI
6 Montgomery, D. R. and Dietrich, W. E. (1994). A Physically based Model for the Topographic Control on Shallow Landsliding. Water Resources Research. 30(4): 1153-1171.   DOI
7 Oh, K. D., Hong, I. P., Jun, B. H., Ahn, W. S., and Lee, M. Y. (2006). Evaluation of GIS-based Landslide Hazard Mapping. Journal of Korea Water Resources Association. 39(1): 23-33.   DOI
8 O'loughlin, E. M. (1986). Prediction of Surface Saturation Zones in Natural Catchments by Topographic Analysis. Water Resources Research. 22(5): 794-804.   DOI
9 Park, D. G., Kim, T. H., and Oh, J. R. (2004). A Study on the Debris-flow and Mitigation Techniques. Research Report of National Institute for Disaster Prevention. National Institute for Disaster Prevention. 295-317
10 De Smedt, F. (2005). Slope Stability Analysis using GIS on a Regional Scale: A Case Study of Narayanghat Mungling Highway Section, Nepal (Doctoral dissertation, Dissertation of Master Degree, Universiteit Gent, Belgium).
11 Westen, C. V. and Terlien, M. J. T. (1996). An Approach towards Deterministic Landslide Hazard Analysis in GIS. A Case Study from Manizales (Colombia). Earth Surface Processes and Landforms. 21(9): 853-868.   DOI