Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 1995.10a
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- Pages.25.2-38
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- 1995
The Application of Nonlinear 3-D Tunnel Analysis Program for the Improved Efects of Steel Pipe Reinforced Multi Step Grouting Method
3차원 터널해석에 의한 강관 다단 그라우팅의 보강효과
- Kim, Hyeong-Tak (Department of Civil Engineering, Dn-Kook University) ;
- Lee, Bong-Yul (Department of Civil Engineering, Dn-Kook University) ;
- Kim, Hak-Moon (Department of Civil Engineering, Dn-Kook University)
- Published : 1995.10.01
Abstract
the Effect of steel pipe reinforced multi-step grouting(SPRG) technique to inrove the ground far ahead of the excavation face was investigated by means of numerical analysis. It was found taht the nonlinear 3-D FEM program performed well to evaluate the usefulness of the SPRG technique in soft ground tunnelling, and about 20% of settlement control in this particular case possible. Therefore in urban subway tunnel construction, the New Austirial Tunnelling Method can be satisfactorily applied even in poor ground conditon with aid of the SPRG technique.
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