Quantitative Estimation of Pre-improvement Support System on Underground Space

지하공간의 사전보강 지보시스템에 대한 정략적 평가에 관한 연구

  • Lee, Jae-Ho (Dept. of Civil Engineering, Kyungpook National University) ;
  • Kim, Young-Su (Dept. of Civil Engineering, Kyungpook National University) ;
  • Jin, Guang-Ri (Dept. of Civil Engineering, Kyungpook National University) ;
  • Moon, Hong-Duk (Dept. of Civil Engineering, Jinju National University) ;
  • Kim, Dea-Man (Dept. of Civil Engineering, Kyungpook National University) ;
  • Hwang, Woon-Sup (Dept. of Civil Engineering, Kyungpook National University)
  • 이재호 (경북대학교 토목공학과) ;
  • 김영수 (경북대학교 토목공학과) ;
  • 김광일 (경북대학교 토목공학과) ;
  • 문홍득 (국립 진주산업대학교 토목공학과) ;
  • 김대만 (경북대학교 토목공학과) ;
  • 황운섭 (경북대학교 토목공학과)
  • Published : 2008.03.28

Abstract

Successful design, construction and maintenance of NATM tunnel demands prediction, control, stability guidelines, the estimation pre-improvement support system and monitoring of surface settlement, gradient and ground displacement with high accuracy. Moreover, urban NATM tunnel under difficult geotechnical conditions is important the estimation and necessary of pre-improvement support system. Various strategies have been proposed for the quantitative estimation of pre-improvement support system. This paper was investigated and analysed an assessment technique for the quantitative estimation of pre-improvement support system on underground space, as mountain and urban tunnel, in detail. The analysis performed on design and construction stage with field database using the proposed stability estimation index by many researcher including the critical strain and the apparent Young's modulus concept.

Keywords