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http://dx.doi.org/10.12652/Ksce.2015.35.3.0599

Analysis of Landslide Hazard Map during Earthquake with Various Degrees of Saturation and Cohesion Values  

Lee, Joonyong (Korea Institute of Civil Engineering and Building Technology)
Han, Jin-Tae (Korea Institute of Civil Engineering and Building Technology)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.35, no.3, 2015 , pp. 599-606 More about this Journal
Abstract
Damage of landslide due to earthquake covers a considerable part of total damage due to earthquake. Landslide due to earthquake affects direct damage of human lives and structures, and social system can be paralyzed by losing functions of roads, basic industries, and so on. Therefore, systematic and specialized research examining the factors affecting the slope stability by earthquakes should be needed. However, method of evaluation of slope stability problems due to earthquake contains somewhat uncertainty since many soil properties are predicted or assumed. In this study, influences of change of soil properties such as degree of saturation and cohesion value are analyzed in factor of safety and displacement using seismic landslide hazard maps based on GIS. As the degree of saturation increases or cohesion decreases, it is found that seismic landslide hazard area marked with factors of safety or displacements tends to increase. Therefore, to draw more exact landslide hazard map during earthquake, it is necessary to obtain accurate soil property information preferentially from site investigation data in the field.
Keywords
Earthquake; Landslide hazard map; Degree of Saturation; Cohesion;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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