Finite element modelling of excavation and advancement processes of a shield tunnelling machine

Kazuhito Komiya, Kenichi Soga, Hirokazu Akagi, Toshiyuki Hagiwara, Malcolm D. Bolton

研究成果: Article査読

80 被引用数 (Scopus)

抄録

During shield tunnelling operation, a shield machine is driven forward by applying mechanical jack forces behind the machine tail and excavating the soil in front of the machine with its cutting face. In this study, the advancement and excavation processes of the shield tunnelling operation are modelled using the finite element method in order to investigate the effect of these construction processes on the ground response. A new excavating finite element, which models the disturbed soil in front of the cutting face, is introduced. The operation of shield advancement and of soil excavation is simulated using the finite element remeshing technique at each time step of the analysis. The accuracy of the finite element remeshing technique is discussed by analysing one-dimensional consolidation of an isotropic elastic medium. The proposed modelling techniques of shield tunnelling construction are applied to simulate a tunnelling project in Tokyo and the numerical results are compared with the field measurements. The soil deformation mechanism associated with the shield tunnelling operation is examined in detail.

本文言語English
ページ(範囲)37-52
ページ数16
ジャーナルSoils and Foundations
39
3
DOI
出版ステータスPublished - 1999

ASJC Scopus subject areas

  • 土木構造工学
  • 地盤工学および土木地質学

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