강우에 의한 돌발 산사태 예․ 경보 시스템 구축 방안
Development Method of Early Warning Systems for Rainfall Induced Landslides
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The objective of this study is to develop an early warning system for rainfall induced landslides. For this study, we suggested an analysis process using rainfall forecast data. 1) For a selected slope, safety factor with saturated depth was analyzed and safety factor threshold was established (warning FS threshold=1.3, alarm FS threshold=1.1). 2) If rainfall started, saturated depth and safety factor was calculated with rainfall forecast data, 3) And every hour after safety factor is compared with threshold, then warning or alarm can issued. In the future, we plan to make a early warning system combined with the in-situ inclinometer sensors.
Abstract
The objective of this study is to develop an early warning system for rainfall induced landslides. For this study, we suggested an analysis process using rainfall forecast data. 1) For a selected slope, safety factor with saturated depth was analyzed and safety factor threshold was established (warning FS threshold=1.3, alarm FS threshold=1.1). 2) If rainfall started, saturated depth and safety factor was calculated with rainfall forecast data, 3) And every hour after safety factor is compared with threshold, then warning or alarm can issued. In the future, we plan to make a early warning system combined with the in-situ inclinometer sensors.
참고문헌 (20)
- Aleotti, P., "A Warning System for Rainfall-Induced Shallow Failure", Engineering Geology, 73, pp.247~265 (2004)
- 백환조, "함수특성곡선의 이력현상이 불포화 사면의 안정성에 미치는 영향", 한국자원공학회지, 47(3), pp.349~358 (2010), 한국자원공학회
- Dahal, R. K., "Representative Rainfall Thresholds for Landslides in the Nepal Himalaya", Geomorphology, 100, pp.429~443 (2008)
- Fredlund, D. G., "Soil Mechanics for Unsaturated Soils" (1995), John Willey & Sons, Inc
- Fredlund, D. G., "Equations for the Soil-Water Characteristic Curve", Canadian Geotechnical Journal, 31, pp.521~532 (1994)
- Green, W. H., "Studies on soil physics, Ⅰ. Flow of water and air through soils", Journal of Agricultural Science, 4, pp.1~24 (1911)
- 정상섬, "지속강우특성에 따른 불포화 풍화토사면의 안정성분석", 대한토목학회 논문집C, 29(1), pp.1~9 (2009), 대한토목학회
- Kim, H. W., "A study on the landslide detection method using wireless sensor network (WSN) and the establishment of threshold for issuing alarm", Preceeding of the 2008 ITFE Summer Conference, pp.262~267 (2008)
- 김정환, "산사태해석을 위한 GIS기반의 강우침투-지하수흐름 예측 기법 제안", 한국지반공학회논문집, 29(7), pp.75~89 (2013), 한국지반공학회
- 김성필, "돌발 산사태 예･경보를 위한 강우기준 설정 연구", 한국농공학회논문집, 56(4), pp.53~58 (2014), 한국농공학회
- 이준용, "흡입력-포화도 조절 기법을 이용한 불포화토의 함수특성곡선에 미치는 간극비 및 순구속압력의 영향 연구", 한국농공학회논문집, 54(4), pp.93~103 (2012), 한국농공학회[DOI]
- Lu, N., "Unsaturated Soil Mechanics" (2004), John Willey & Sons, Inc
- Lumb, P., "Effects of rain storms on slope stability", Symposium on Hong Kong Soils, pp.73~87 (1962)
- Mein, R. G., "Modeling infiltration during steady rain", Water Resources Research, 9(2), pp.384~394 (1973)
- Morel-Seytoux, H. J., "Parameter equivalence for Brooks-Corey and van Genuchten soil Characteristic: Preserving the effective capillary drive", Water Resources Research, 32(5), pp.1251~1258 (1996)
- 오정림, "산사태 발생 예측을 위한 유발 강우기준 연구", 한국방재학회논문집, 14(2), pp.115~129 (2014), 한국방재학회
- Saito, H., "Relationship between the Initiation of a Shallow Landslide and Rainfall Intensity-Duration Thresholds in Japan", Geomorphology, 118, pp.167~175 (2010)
- 송창섭, "불포화토의 투수특성", 한국농공학회논문집, 47(4), pp.35~41 (2005), 한국농공학회
- Van Genuchten, M. T., "A closed-form equation of predicting the hydraulic conductivity of unsaturated soils", Soil Science Society of America Journal, 44, pp.892~898 (1980)
- Vanapalli, S. K., "Model for the prediction of shear strength with respect to soil suction", Canadian Geotechnical Journal, 33, pp.379~392 (1996)