Numerical modelling of tunnel excavation in soils using the Multilaminate Model

H. Schuller*, H. F. Schweiger

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Finite element analyses of a tunnel excavation with low overburden are presented utilizing a constitutive model embedded within the framework of the Multilaminate Model. It incorporates deviatoric hardening plasticity in the pre-peak range and a simple strain softening formulation for approximating the post-peak behaviour. Staged construction sequence of the tunnel is simulated by modelling excavation of top heading, bench and invert. It is demonstrated that the mechanism of strain localization and shear band formation which may lead to the collapse of the structure can be captured reasonably well and with sufficient accuracy for practical problems. Furthermore it is shown that displacements under working load conditions are qualitatively in good agreement with observations made in practice.

Original languageEnglish
Title of host publicationNumerical models in geomechanics. Proceedings of the 7th international symposium, Graz, September 1999.
EditorsG. N. Pande, S. Pietruszczak, H. F. Schweiger, G.N. Pande, S. Pietruszczak, H.F. Schweiger
Pages341-346
Number of pages6
Publication statusPublished - 1 Dec 1999
Event7th International Symposium on Numerical Models in Geomechanics - Graz, Austria
Duration: 1 Sep 19993 Sep 1999

Conference

Conference7th International Symposium on Numerical Models in Geomechanics
Abbreviated titleNUMOG VII
CountryAustria
CityGraz
Period1/09/993/09/99

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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    Schuller, H., & Schweiger, H. F. (1999). Numerical modelling of tunnel excavation in soils using the Multilaminate Model. In G. N. Pande, S. Pietruszczak, H. F. Schweiger, G. N. Pande, S. Pietruszczak, & H. F. Schweiger (Eds.), Numerical models in geomechanics. Proceedings of the 7th international symposium, Graz, September 1999. (pp. 341-346)