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http://dx.doi.org/10.14578/jkfs.2019.108.2.233

Analysis of Characteristics using Geotechnical Investigation on the Slow-moving Landslides in the Pohang-si Area  

Lee, Moon-Se (Forest Technology Division, National Forestry Cooperative Federation)
Park, Jae-Hyeon (Department. of Forest Resources, Gyeongnam National University of Science and Technology)
Park, Yunseong (Forest Technology Division, National Forestry Cooperative Federation)
Publication Information
Journal of Korean Society of Forest Science / v.108, no.2, 2019 , pp. 233-240 More about this Journal
Abstract
The aim of this study was to provide basic data that could identify and help prevent a slow-moving landslide using an analysis of the relationship between below-ground characteristics and water from three slow-moving landslide areas in Pohang, Gyeongsangbuk-do, South Korea. Surface surveys, resistivity, seismic exploration, well logging, and boring surveys were conducted in the three areas. The main direction of discontinuous surface was matched with the slope direction of the three landslides. The results indicatedthat slow-moving landslides might occur in the direction of the slope. Underground water was distributed within the crush zones within the three landslide areas and flowed along the tensile cracks. There was a significant difference (p<0.01) between the mean angle of the tensile cracks and that of the underground waterflow (p=0.8019). These results indicated that the progress of a slow-moving landslide can be forecast by monitoring the location and flow of underground water within a known slow-moving landslide area.
Keywords
the slow-moving landslide; crack; groundwater; discontinuous surface;
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Times Cited By KSCI : 4  (Citation Analysis)
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