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http://dx.doi.org/10.9720/kseg.2016.3.413

Study on Landslide Hazard Possibility for Mt. Hwangryeong in Busan Metropolitan City Using the Infinite Slope Model  

Kim, Jae Min (Geological Department, Saman Corporation)
Choi, Jung Chan (Dept. of Earth & Environmental Sciences, Pukyong National University)
Publication Information
The Journal of Engineering Geology / v.26, no.3, 2016 , pp. 413-422 More about this Journal
Abstract
With the rapidly increasing population density and development of infrastructure, the loss of life and property damage caused by landslides has increased gradually in urban area. Especially, Because Busan has high percentage of mountainous terrain among the metropolitan in Korea, it is unavoidable to develop mountainous region excessively. The objective of this evaluation is to study on landslide hazard possibility for Mt. Hwangryeong in Busan Metropolitan City using the infinite slope model considering the groundwater level. All data related to creating the thematic maps was carried out using ArcGIS 10.0. The results show that FS (Factor of Safety) for landslide is inversely proportional to groundwater level change as expected. Most area indicates stable state in dry condition, and unstable area increase due to high pore water pressure when the groundwater level rise. However, several places in high lineament density area where landslide has been previously occurred, are more stable than other places according to the analysis. This inconsistency between real situation and analysis results indicates that additional analytical method would be necessary to solve the problem. Therefore, we suggest that development of new infiltration theory for unsaturated zone would be helpful to evaluate groundwater level distribution as time goes by.
Keywords
Landslide Hazard; Infinite Slope Model; Groundwater Level; ArcGIS 10.0;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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