Evaluation of Slope Stability in Umyeon-san Area (우면산지역의 사면안정성 평가)

Jun Byong Hee (전병희)

Evaluation of Slope Stability in Umyeon-san Area

Crisisonomy
Abbr : KRCEM
2012, 8(5), pp.227-234
Publisher : Crisis and Emergency Management: Theory and Praxis
Research Area : Social Science > Public Policy > Public Policy in general

Jun Byong Hee ¹

¹강원대학교

Accredited

ABSTRACT

Due to an intensive rainfall about 500 mm occurred between from 25 to 27 July 2011 in Seoul, debris flows were taken placed around the umyeon-san(mountain) and killed 18 people. In this paper, we investigated the adaption possibility of slope stability model for the debris flow triggering. As the input parameters in model, effective cohesion, soil density, the ratio of soil thickness and saturated soil thickness, soil thickness, inclination of the hillslope and soil effective friction angel were applied. We investigated the effect of different slope layer extracted from 1m, 10m, 30m high resolution DEM(Digital Elevation Model) on slope stability analysis. As the results, the high resolution of 10m cell size enhanced the debris flow susceptibility, but 1m resolution did not increased the susceptibility.

KEYWORDS

debris flow, slope stability, cell size

Citation status

* References for papers published after 2023 are currently being built.

[report] 국립방재연구소 / 2004 / 토석류의 발생작용 및 피해저감에 관한 연구

[journal] 김경석 / 2008 / Characteristics of Basin Topography and Rainfall Triggering Debris Flow / 대한토목학회 논문집C / 대한토목학회 28(5) : 263~271

[journal] 김경태 / 2005 / Evaluation of Landslide Susceptibility Using GIS and RS / 한국지리정보학회지 / 한국지리정보학회 8(1) : 75~87

[journal] 김기환 / 2008 / A Study on Model Tests for Debris Flow Characteristics / 한국지반환경공학회 논문집 / 한국지반환경공학회 9(5) : 83~89

[journal] 김기홍 / 2008 / Hazard Risk Assessment for National Roads in Gangneung City / 한국지형공간정보학회지 / 한국지형공간정보학회 16(4) : 33~39

[journal] 박덕근 / 2007 / 집중호우에 따른 비탈면 재해분석을 통한 피해저감 방안 제시 / 한국구조물진단학회지 11(4) : 3~11

[journal] 윤홍식 / 2009 / Preparation of Landslide Hazard Map Using the Analysis of Historical Data and GIS Method / 한국지리정보학회지 / 한국지리정보학회 12(4) : 59~73

[journal] 이승기 / 2005 / Development of a Landslide Hazard Prediction Model Using GIS / 한국지리정보학회지 / 한국지리정보학회 8(4) : 81~90

[journal] 조남춘 / 2006 / Verification of Landslide Hazard using RSand GIS Methods / 한국지리정보학회지 / 한국지리정보학회 9(2) : 54~66

[journal] 채병곤 / 2006 / A Test for Characterization on Landslides Triggering and Flow Features of Debris using a Flume test Equipment / 지질공학 / 대한지질공학회 16(3) : 275~282

[book] Brunsden, D. / Slope Instability / John Wiley and Sons

[journal] Colombo, A. / 2005 / Systematic GIS-based Landslide Inventory as the First Step for Effective Landslide-Hazard Management / Landslides 2 : 291~301

[journal] Galli, M. / 2008 / Comparing Landslide Inventory Maps / Geomorphology 94 : 268~289

[journal] Iwahashi, J. / 2001 / Landform Analysis of Slope Movements Using DEM in Higashikubiki area, Japan / Computers and Geoscience 27 : 851~865

[journal] Malamud, B. D. / 2004 / Landslide Inventories and their Statistical Properties / Earth Surface Process and Landforms 28 : 1361~1376

KJCKorea
Journal Central

Crisisonomy 2023 KCI Impact Factor : 0.64