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http://dx.doi.org/10.5762/KAIS.2020.21.3.481

Analysis of behavior a River Levee based on the Earthquake Scenario  

Kim, Jin-Man (Department of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology)
Jin, Yoon-Hwa (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.3, 2020 , pp. 481-487 More about this Journal
Abstract
This study examined the behavior change of river levees during an earthquake by numerical analysis. Unlike conventional research using artificial earthquake waves, earthquake analysis was performed using real earthquake waves. The behavior of a river levee before and after an earthquake was compared and analyzed quantitatively. Studies show that the river levee has a safety factor of approximately 28.5% due to an earthquake. On the other hand, the minimum standard safety factor is satisfied. Vertical effective stress has decreased by 81.8% due to excess pore-water pressure generated by the earthquake. In addition, liquefaction occurs in most of the foundation soil. An examination of the stress-displacement behavior due to the earthquake revealed a large amount of settlement in the backfill layer. Most of the foundation soil yielded. Therefore, the target river levee is quite vulnerable to earthquakes. Through the results of this study, the necessity of refreshing the seismic design standards for river levees is required. This study can be used as basic data for estimating the approximate damage level and vulnerable areas.
Keywords
River levee; Seismic analysis; Real earthquake records; Predicted by seismic damage; Liquefaction;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
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