Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Development Method of Early Warning Systems for Rainfall Induced Landslides

강우에 의한 돌발 산사태 예·경보 시스템 구축 방안

  • Kim, Seong-Pil (Institute of Green Bio Science and Technology, Seoul National University) ;
  • Bong, Tae-Ho (Institute of Green Bio Science and Technology, Seoul National University) ;
  • Bae, Seung-Jong (Department of Rural Systems Engineering, Seoul National University) ;
  • Park, Jae-Sung (Research Institute for Agriculture & Life Sciences, Seoul National University)
  • Received : 2015.07.16
  • Accepted : 2015.07.20
  • Published : 2015.07.30
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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.

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References

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