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국내 액상화 평가를 위한 지진파 선정

Selection of Ground Motions for the Assessment of Liquefaction Potential for South Korea

  • 장영은 (한국원자력연구원 혁신원자력시스템연구소) ;
  • 서환우 (울산과학기술원 도시환경공학과) ;
  • 김병민 (울산과학기술원 도시환경공학과) ;
  • 한진태 (한국건설기술연구원 인프라안전연구본부 지진안전센터) ;
  • 박두희 (한양대학교 건설환경공학과)
  • Jang, Young-Eun (Innovative Nuclear Reactor Systems, Korea Atomic Energy Research Institute) ;
  • Seo, Hwanwoo (School of Urban and Environmental Engineering, UNIST) ;
  • Kim, Byungmin (School of Urban and Environmental Engineering, UNIST) ;
  • Han, Jin-Tae (Department of Infrastructure Safety Research, Seismic Safety Research Center, KICT) ;
  • Park, Duhee (Department of Civil and Environmental Engineering, Hanyang University)
  • 투고 : 2019.11.05
  • 심사 : 2020.02.14
  • 발행 : 2020.03.01

초록

Recently, some of the most destructive earthquakes have occurred in South Korea since earthquake observations began in 1978. In particular, the soil liquefactions have been reported in Pohang as a result of the ML 5.4 earthquake that occurred in November 2017. Liquefaction-induced ground deformations can cause significant damage to a wide range of buildings and infrastructures. Therefore, it is necessary to take practical steps to ensure safety during an earthquake. In the current seismic design in South Korea, the Hachinohe earthquake and Ofunato earthquake recorded in Japan, along with artificial earthquakes, have been generally used for input motions in dynamic analyses. However, such strong ground motions are only from Japan, and artificial earthquake ground motions are different from real ground motions. In this study, seven ground motions are selected, including those recorded in South Korea, while others are compatible to the current design spectra of South Korea. The effects of the newly selected ground motions on site response analyses and liquefaction analyses are evaluated.

키워드

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