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http://dx.doi.org/10.9720/kseg.2020.4.447

Time Series Analysis of Soil Creep on Cut Slopes Using Unmanned Aerial Photogrammetry  

Kim, Namgyun (Forest Technology Division, National Forestry Cooperative Federation)
Choi, Bongjin (Graduate School of Disaster Prevention, Kangwon National University)
Choi, Jaehee (Graduate School of Disaster Prevention, Kangwon National University)
Jun, Byonghee (Graduate School of Disaster Prevention, Kangwon National University)
Publication Information
The Journal of Engineering Geology / v.30, no.4, 2020 , pp. 447-456 More about this Journal
Abstract
The study area is a slope in Dogye-eup, Samcheok-si, Gangwon-do. The cutting method was applied to this slope for stabilization in 2009 due to the influence of the waste-rock dump located at the top of slope. Recently, soil cracks and creep have occurred on this slope, and the drainage channel was damaged. Therefore, it was analyzed the topography change through photogrammetry using a UAV. Orthophotos were taken in April and October 2019 respectively. From the Orthophots, Digital Surface Model (DSM) was extracted. Time series analysis was performed by comparing each DSM. The topography of October was pushed forward while maintaining the topography of April. Through these features, it is judged that the soil creep is occurring in this study area.
Keywords
soil creep; UAV; high-res; DSM;
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Times Cited By KSCI : 1  (Citation Analysis)
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