Tunnel and Underground Space (터널과지하공간)

Korean Society for Rock Mechanics and Rock Engineering (한국암반공학회)
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Regional Distribution Pattern and Geo-historical Transition of In-situ Stress Fields in the Korean Peninsula

한반도지역의 현지응력장 분포 패턴 및 지질시대별 전이 추이

  • 신중호 (한국지질자원연구원 지구환경연구본부) ;
  • 박찬 (한국지질자원연구원 지구환경연구본부) ;
  • 이병주 (한국지질자원연구원 지구환경연구본부)
  • Received : 2013.11.11
  • Accepted : 2013.12.02
  • Published : 2013.12.31
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Abstract

We have analyzed the regional in-situ stress pattern using 460 stress measurement data at about 100 test sites in Korea, and suggested correlation equations of stress-depth and stress ratio-depth. We made Korea Stress Map(KSM) as in-situ stress fields of the Korean peninsula, combining with a paleo-stress analysis according to the geological period and a stress estimation from focal mechanism. We confirmed the reliability and applicability of correlation equations derived in this study, comparing with worldwide stress-depth patterns, and also estimated the pattern of in-situ stress fields of north-eastern Asia including Korea, China and Japan, comparing with World Stress Map.

국내 100여개 지역에서 측정된 460개 현지응력자료를 종합 분석하여 국내의 광역적 현지응력 분포 패턴을 분석하고, 심도-응력 및 심도-측압계수 관계식을 제시하였다. 이와 함께 한반도의 지질시대별 고응력장 변화와 최근의 지진 메카니즘에 의한 응력장 추정 결과를 통합하여, 한반도지역의 응력장 분포 패턴인 한국응력지도(Korea Stress Map)를 작성하였다. 세계의 심도-응력 관계식들과 비교를 통해, 본 연구에서 도출된 관계식의 적합성과 수 km 심도에의 유추 적용성을 확인하였다. 그리고 세계응력지도(World Stress Map)과 함께 동북아시아지역의 응력장 패턴을 분석하였다.

Keywords

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