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http://dx.doi.org/10.9720/kseg.2017.2.125

Slope Stability Assessment Induced by Variation in Mountain Topography and Rainfall Infiltration  

Kim, Man-Il (Forest Engineering Institute, National Forestry Cooperatives Federation)
Lee, Seung-woo (Forest Engineering Institute, National Forestry Cooperatives Federation)
Kim, Byung-Sik (Department of Urban and Environmental Disaster Prevention Engineering, Kangwon National University)
Publication Information
The Journal of Engineering Geology / v.27, no.2, 2017 , pp. 125-132 More about this Journal
Abstract
Approximately 64 percent of Korean territory is covered with mountains, and there is occurred a continuous mountain disaster such as landslide, debris flow and slope failure around mountain slopes due to heavy rainfall and typhoon in the summer season. Even in such a reality, the development of mountain areas is being carried out through the development and expansion of social infrastructures centered on mountain areas, but systematic management is insufficient. Constructions of a forest road facility for mountain slopes can be a cause of mountain disasters intensively in the summer season due to artificially changing the mountain area. In this unstable mountain environment, efforts to build a disaster-resistant environment are urgently needed. This research is to analyze the stability of mountain slopes according to soil depth (1~5 m) and mountain slope ($20{\sim}60^{\circ}$) considering the characteristics of rainfall infiltration under extreme rainfall conditions. As a result, the stability of the mountain slope was found to be different according to the depth of soils and the saturation area of the soil layer. As well as the stability of the mountain area was found to be lower than that of the natural mountain area. Specially, rainfall infiltration occurs at the upper slope of the forest road. For this reason, the runoff phenomenon of rainfall infiltration water occurs clearly when the depth of soil layer is low.
Keywords
mountain slope; forest road; rainfall infiltration; landslide; stability;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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