Numerical modelling of tunnel excavation in soils using the Multilaminate Model

H. Schuller; H. F. Schweiger

Numerical modelling of tunnel excavation in soils using the Multilaminate Model

H. Schuller^*, H. F. Schweiger

^*Corresponding author for this work

Institute of Soil Mechanics, Foundation Engineering and Computational Geotechnics (2170)

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

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 language	English
Title of host publication	Numerical models in geomechanics. Proceedings of the 7th international symposium, Graz, September 1999.
Editors	G. N. Pande, S. Pietruszczak, H. F. Schweiger, G.N. Pande, S. Pietruszczak, H.F. Schweiger
Pages	341-346
Number of pages	6
Publication status	Published - 1 Dec 1999
Event	7th International Symposium on Numerical Models in Geomechanics - Graz, Austria Duration: 1 Sept 1999 → 3 Sept 1999

Conference

Conference	7th International Symposium on Numerical Models in Geomechanics
Abbreviated title	NUMOG VII
Country/Territory	Austria
City	Graz
Period	1/09/99 → 3/09/99

ASJC Scopus subject areas

General Earth and Planetary Sciences
General Environmental Science

Cite this

Numerical modelling of tunnel excavation in soils using the Multilaminate Model. / Schuller, H.; Schweiger, H. F.
Numerical models in geomechanics. Proceedings of the 7th international symposium, Graz, September 1999.. ed. / G. N. Pande; S. Pietruszczak; H. F. Schweiger; G.N. Pande; S. Pietruszczak; H.F. Schweiger. 1999. p. 341-346.

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Schuller, H & Schweiger, HF 1999, Numerical modelling of tunnel excavation in soils using the Multilaminate Model. in GN Pande, S Pietruszczak, HF Schweiger, GN Pande, S Pietruszczak & HF Schweiger (eds), Numerical models in geomechanics. Proceedings of the 7th international symposium, Graz, September 1999.. pp. 341-346, 7th International Symposium on Numerical Models in Geomechanics, Graz, Austria, 1/09/99.

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Numerical modelling of tunnel excavation in soils using the Multilaminate Model

Abstract

Conference

ASJC Scopus subject areas

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