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Application of Probabilistic Tsunami Hazard Analysis for the Nuclear Power Plant Site

원자력 발전소 부지에 대한 확률론적 지진해일 재해도 분석의 적용

  • Rhee, Hyun-Me (Department of Earth Systems and Environmental Science, Chonnam National University) ;
  • Kim, Min Kyu (Integrated Safety Assessment Division, Kora Atomic Energy Research Institute (KAERI)) ;
  • Sheen, Dong-Hoon (Department of Earth Systems and Environmental Science, Chonnam National University) ;
  • Choi, In-Kil (Integrated Safety Assessment Division, Kora Atomic Energy Research Institute (KAERI))
  • 이현미 (전남대학교 지구환경과학과) ;
  • 김민규 (한국원자력연구원 종합안전평가부) ;
  • 신동훈 (전남대학교 지구환경과학과) ;
  • 최인길 (한국원자력연구원 종합안전평가부)
  • Received : 2015.06.19
  • Accepted : 2015.08.25
  • Published : 2015.11.01

Abstract

The tsunami hazard analysis is performed for testing the application of probabilistic tsunami hazard analysis to nuclear power plant sites in the Korean Peninsula. Tsunami hazard analysis is based on the seismic hazard analysis. Probabilistic method is adopted for considering the uncertainties caused by insufficient information of tsunamigenic fault sources. Logic tree approach is used. Uljin nuclear power plant (NPP) site is selected for this study. The tsunamigenic fault sources in the western part of Japan (East Sea) are used for this study because those are well known fault sources in the East Sea and had several records of tsunami hazards. We have performed numerical simulations of tsunami propagation for those fault sources in the previous study. Therefore we use the wave parameters obtained from the previous study. We follow the method of probabilistic tsunami hazard analysis (PTHA) suggested by the atomic energy society of Japan (AESJ). Annual exceedance probabilities for wave height level are calculated for the site by using the information about the recurrence interval, the magnitude range, the wave parameters, the truncation of lognormal distribution of wave height, and the deviation based on the difference between simulation and record. Effects of each parameters on tsunami hazard are tested by the sensitivity analysis, which shows that the recurrence interval and the deviation dominantly affects the annual exceedance probability and the wave heigh level, respectively.

Keywords

References

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