Journal of the Korean Society for Railway (한국철도학회논문집)

The Korean Society for Railway (한국철도학회)
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Ground Response Curve for Ground Movement Analysis of Tunnel

지반응답곡선을 이용한 터널의 지반거동 분석

  • 이송 (서울시립대학교 토목공학과) ;
  • 안성학 (서울시립대학교 토목공학과) ;
  • 안태훈 (서울시립대학교 토목공학과) ;
  • 공성석 (서울시 시설계획과)
  • Published : 2002.12.01
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Abstract

We must notice ground movement by excavation for reasonable tunnel designs. The convergence confinement method is an attempt to evaluate tunnel stability conditions by means of a mathematical model and a ground response curve. In this study, the convergence confinement method by numerical model was examined. This method don't need the basic assumptions for a mathematical model of circular tunnel shape, and hydrostatic in situ stress. Also modified ground response curve that is calculated after installing the support, is suggested, which informs us the ground movement mechanism. The ground response curve and the support reaction curve are mutually dependent. Especially the support reaction curve depends upon the ground response curve. The mechanism of tunnel must be analyzed by the interaction between support and ground. Consequently the stability of tunnel must be qualitatively investigated by a ground response curve and quantitatively adjudged by a numerical analysis for the reasonable design of tunnel.

Keywords

References

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