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Proposed Landslide Warning System Based on Real-time Rainfall Data
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  • Journal title : The Journal of Engineering Geology
  • Volume 26, Issue 2,  2016, pp.197-205
  • Publisher : The Korea Society of Engineering Gelolgy
  • DOI : 10.9720/kseg.2016.2.197
 Title & Authors
Proposed Landslide Warning System Based on Real-time Rainfall Data
Kim, Hong Gyun; Park, Sung Wook; Yeo, Kang Dong; Lee, Moon Se; Park, Hyuck Jin; Lee, Jung Hyun; Hong, Sung Jin;
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Rainfall-induced landslide disaster case histories are typically required to establish critical lines based on the decrease coefficient for judging the likelihood of slope collapse or failure; however, reliably setting critical lines is difficult because the number of nationwide disaster case histories is insufficient and not well distributed across the region. In this study, we propose a method for setting the critical area to judge the risk of slope collapse without disaster case history information. Past 10 years rainfall data based on decrease coefficient are plotted as points, and a reference line is established by connecting the outermost points. When realtime working rainfall cross the reference line, warning system is operating and this system can be utilized nationwide through setting of reference line for each AWS (Automatic Weather Station). Warnings were effectively predicted at 10 of the sites, and warnings could have been issued 30 min prior to the landslide movement at eight of the sites. These results indicate a reliability of about 67%. To more fully utilize this model, it is necessary to establish nationwide rainfall databases and conduct further studies to develop regional critical areas for landslide disaster prevention.
Slope Failure;Rainfall-induced Landslide;Risk of Collapse;Disaster Case Histories;Decrease Coefficient;Critical Line;Critical Area;Reference Line;
 Cited by
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