The Journal of Engineering Geology (지질공학)

The Korean Society of Engineering Geology (대한지질공학회)
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A Study on Geological Factors Affecting Behavior of Sedimentary Rock Tunnel Using Quantification Method Type I

수량화방법 I을 이용한 퇴적암 터널의 지질 인자별 변위 영향도 분석

  • Yim, Sung-Bin (Department of Earth & Environmental Sciences, Chungbuk National University) ;
  • Seo, Yong-Seok (Department of Earth & Environmental Sciences, Chungbuk National University) ;
  • Kim, Chang-Yong (Korea Institute of Construction Technology, Dept. Geotechnical Engineering Research) ;
  • Kim, Kwang-Yoem (Korea Institute of Construction Technology, Dept. Geotechnical Engineering Research)
  • 임성빈 (충북대학교 지구환경과학과) ;
  • 서용석 (충북대학교 지구환경과학과) ;
  • 김창용 (한국건설기술연구원 국토지반연구부) ;
  • 김광염 (한국건설기술연구원 국토지반연구부)
  • Published : 2007.06.30
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Abstract

Tunnel behavior measured by monitoring during construction is a main item for safety evaluation and it depends widely upon local geological characteristics. To assess in this study how much the geological factors influence on tunnel behavior for each RMR factor, a quantification analysis was carried out using tunnel face maps and measurements as explanatory variables and dependent variables, respectively. The results showed that average significance of the influence of RMR factors - R1, R2, R3, R4 and R5, on tunnel displacements are 17.0%, 20.4%, 20.4%, 11.6% and 30.6%, respectively, and this probably indicates that the groundwater condition played a significant role for the tunnel displacement.

터널 시공 중 일상적으로 수행되는 계측에 의해 정량화되는 터널의 거동은 안정성 평가를 위한 주요한 항목이며, 이는 지역적인 지질학적 특성에 크게 의존한다. 본 연구에서는 지질학적 특성 차에 의한 RMR 항목별 터널 거동에 미치는 영향도를 분석하기 위하여, 터널의 face mapping 자료와 계측자료를 각각 설명변수와 종속변수로 한 수량화 분석을 실시하였다. 분석 결과, RMR 인자가 터널의 변위에 미치는 중요도의 평균은 R1, R2, R3, R4, R5 각각 17.0%, 20.4%, 20.4, 11.6%, 30.6%로서, 이는 분석지역의 지하수특성이 변위에 크게 영향을 미친 것으로 판단된다.

Keywords

References

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