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http://dx.doi.org/10.5762/KAIS.2020.21.5.679

Seismic Vulnerability Analysis of River Levee by Earthquake Return Period  

Kim, Kyung-Oh (Department of Civil Engineering, Kumoh National Institute of Technology)
Han, Heui-Soo (Department of Civil Engineering, Kumoh National Institute of Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.5, 2020 , pp. 679-686 More about this Journal
Abstract
In this study, the seismic vulnerability of public river levees was analyzed quantitatively. Input seismic waves were generated in Pohang seismic waves in return periods of 200, 500, 1000, and 2400 years. The behavior of the levee was analyzed by seismic vulnerability analysis according to the return period. The displacement that occurs during an earthquake showed the same tendency as the input seismic wave and was largest in the return period of 2400 years. An analysis of the sliding stability revealed a 31.5% and 26.7% decrease in the sliding safety factor for the return period of 2400 for the landside and waterside, respectively. An examination of liquefaction by the q/p' ratio showed that the seepage line inside the embankment rises due to earthquakes. As a result, in the case of a return period of 2400 years, most embankments generate liquefaction, making them vulnerable to earthquakes. Through this research, it will be necessary to re-establish domestic seismic-design standards and establish clear standards for the results through a dynamics method.
Keywords
River levee; Earthquake Return Period; Seismic Vulnerability; Earthquake; Liquefaction;
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Times Cited By KSCI : 8  (Citation Analysis)
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