초기 산사태 발생에 영향을 미치는 지형요소의 특성분석 = Analysis on the Characteristics of Geomorphological Features Affecting the Initial State of Landslides

다국어 초록 (Multilingual Abstract)

The main objective of this study is to evaluate the preliminary landslide hazard based on the identification ofgeomorphological features, which are believed to be critical values in the initial state of landslides. Two methods,SINMAP and Planarity analyses, are used to simulate those characteristics where landslides are actually located. Resultsshowed that both methods well discriminate geomorphic features between stable and unstable domains in the landslideareas. SINMAP analysis which is the consecutive model considering external factors like infiltration identifies thelandslide hazard especially for debris flow type landslides better than plararity analysis focusing on a specific area. Thisanalysis combined with other methods dealing with specific characteristics of geomorphological feature, the accuratelandslide hazard will be evaluated.

참고문헌 (Reference)

1 차아름, "지형특성을 활용한 산사태 위험도 판단을 위한 비교" 한국지반환경공학회 15 (15): 67-73, 2014

2 이지성, "강우패턴을 고려한 화강풍화토 사면의 침투 및 안정성 분석" 한국방재학회 13 (13): 83-91, 2013

3 Pack, R. T., "The SINMAP approach to terrain stability mapping" 21-25, 1998

4 Watson, G. S., "Statistics of orientation data" 74 (74): 786-797, 1966

5 Woodcock, N. H., "Specification of fabric shapes using an eigenvalue method" 88 (88): 1231-1236, 1977

6 Hobson, R. D., "Spatial Analysis in Geomorphology" Methuen & Co Ltd. 221-245, 1972

7 Woodcock, N. H., "Randomness testing in 3-dimensional orientation data" 5 (5): 539-548, 1983

8 Cha, A. R., "Preliminary risk assessment for landslides using directional vectors" 1041-1046, 2013

9 Mark, D. M., "On the interpretation of till fabrics" 2 (2): 101-104, 1974

10 McKean, J., "Objective landslide detection and surface morphology mapping using high-resolution airborne laser altimetry" 57 : 331-351, 2004

11 Kasai, M., "LiDARderived DEM evaluation of deep-seated landslides in a steep and rocky region of Japan" 113 (113): 57-69, 2009

12 Kim, T. H., "Identification of geomorphological features of landslides using airborne laser altimetry" 567-573, 2012

13 오경두, "GIS 기반 산사태 예측모형의 적용성 평가" 한국수자원학회 39 (39): 23-33, 2006

14 National Disaster Management Institute, "Establishment of collapse warning & evacuation criteria for steep slopes, Developments of the GIS based steep slope collapse determination system (I)" NDMI 154-, 2011

15 VanDine, D. F., "Debris flow control structures for forest engineering" 4-6, 1996

16 Natioanl Emergency Management Agency, "Annual Disaster Report 2012" NEMA 1226-1242, 2012