Method of Estimating the Ground-Motion Intensity Measures at a Nearby Site by using the Time-domain Transformation of Site Response

지진파형의 시간영역 부지응답특성 변환을 통한 인접부지의 지진동세기 추정 방법

  • Yun, Kwan-Hee (Dept. of Nuclear Engneering, KEPCO Research Institute) ;
  • Park, Dong-Hee (Dept. of Nuclear Engneering, KEPCO Research Institute)
  • 연관희 (한국전력공사 전력연구원) ;
  • 박동희 (한국전력공사 전력연구원)
  • Received : 2010.07.06
  • Accepted : 2010.08.10
  • Published : 2010.08.31

Abstract

Current earthquake alert notification for immediate post-earthquake procedures for the critical facilities is exclusively dependent on the ground-motion intensity measures observed at the seismic station located within the site. This practice is prune to false notification due to a noise and problems of missing and poor quality records of the seismic station. The credibility of the earthquake alert notification can be enhanced by utilizing the multiple transformed records of the nearby seismic stations at other sites interconnected to the same earthquake monitoring system by a network. The time-domain transformation of the site-response between the seismic stations is implemented by convoluting the nearby records with a pair of forward and inverse FIR filters designed for the site response relative to a seismic basement. The transformed records from the nearby seismic stations can be used to estimate the ground-motion intensity measures missing at the site or to evaluate the data quality along with other various possible applications in the area of geoscience and earthquake engineering.

Acknowledgement

Supported by : 한국에너지기술평가원(KETEF)

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