Journal of Korean Tunnelling and Underground Space Association (한국터널지하공간학회 논문집)

Korean Tunnelling and Underground Space Association (한국터널지하공간학회)
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Management and concept of the monitoring system considering the characteristics of subsea tunnels

해저터널의 특성을 고려한 계측 개념 및 관리 방안

  • Park, Eui-Seob (Underground Space Research Team, Korea Institute of Geoscience & Mineral Resources) ;
  • Shin, Hee-Soon (Underground Space Research Team, Korea Institute of Geoscience & Mineral Resources) ;
  • Cheon, Dae-Sung (Underground Space Research Team, Korea Institute of Geoscience & Mineral Resources) ;
  • Jung, Yong-Bok (Underground Space Research Team, Korea Institute of Geoscience & Mineral Resources)
  • 박의섭 (한국지질자원연구원 지하공간연구팀) ;
  • 신희순 (한국지질자원연구원 지하공간연구팀) ;
  • 천대성 (한국지질자원연구원 지하공간연구팀) ;
  • 정용복 (한국지질자원연구원 지하공간연구팀)
  • Received : 2013.09.13
  • Accepted : 2013.09.24
  • Published : 2013.09.30
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Abstract

In order to ensure the safety of the subsea tunnel during its construction and operation, unlike the underground structures on land, the special monitoring system is essential which considers the characteristics of subsea tunnels in addition to conventional stress and displacement measurements applied to existing land tunnels. Therefore, the concept applied to NATM is reorganized to evaluate the stability of subsea tunnels. And the observation system for making a monitoring plan, the critical strain theory for tunnel safety management and MS monitoring methods for detecting the local failure and crack initiation of rock and supports, are introduced. Finally, the scheme of monitoring and management for subsea tunnels by using these methods is suggested.

해저터널은 육상의 지하구조물과 달리 시공 및 운영 중의 안전성을 확보하기 위해서는 기존의 육상터널에 적용된 응력과 변위계측과 더불어 해저터널의 특성을 고려한 계측이 필수적으로 요구된다. 따라서 해저터널의 안정성을 평가하고자 NATM에 적용되는 개념을 정리하고, 계측계획 수립을 위한 관측 시스템(observation system), 터널의 안전관리를 위한 임계변형률 이론과 국부적으로 발생하는 암석과 지보재의 파괴나 균열의 생성을 파악할 수 있는 미소파괴음 계측을 소개하고, 이러한 방법들을 사용한 해저터널 계측 및 관리방안을 제시하였다.

Keywords

References

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