A 3D finite element simulation model for TBM tunnelling in soft ground
Identifieur interne : 001604 ( Main/Exploration ); précédent : 001603; suivant : 001605A 3D finite element simulation model for TBM tunnelling in soft ground
Auteurs : Thomas Kasper [Allemagne] ; Günther Meschke [Allemagne]Source :
- International Journal for Numerical and Analytical Methods in Geomechanics [ 0363-9061 ] ; 2004-12-10.
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Abstract
A three‐dimensional finite element simulation model for shield‐driven tunnel excavation is presented. The model takes into account all relevant components of the construction process (the soil and the ground water, the tunnel boring machine with frictional contact to the soil, the hydraulic jacks, the tunnel lining and the tail void grouting). The paper gives a detailed description of the model components and the stepwise procedure to simulate the construction process. The soil and the grout material are modelled as saturated porous media using a two‐field finite element formulation. This allows to take into account the groundwater, the grouting pressure and the fluid interaction between the soil and slurry at the cutting face and between the soil and grout around the tail void. A Cam‐Clay plasticity model is used to describe the material behaviour of cohesive soils. The cementitious grouting material in the tail void is modelled as an ageing elastic material with time‐dependent stiffness and permeability. To allow for an automated computation of arbitrarily long and also curvilinear driving paths with suitable finite element meshes, the simulation procedure has been fully automated. The simulation of a tunnel advance in soft cohesive soil below the ground water table is presented and the results are compared with measurements taken from the literature. Copyright © 2004 John Wiley & Sons, Ltd.
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DOI: 10.1002/nag.395
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J. Numer. Anal. Meth. Geomech.</title><idno type="ISSN">0363-9061</idno><idno type="eISSN">1096-9853</idno><imprint><publisher>John Wiley & Sons, Ltd.</publisher><pubPlace>Chichester, UK</pubPlace><date type="published" when="2004-12-10">2004-12-10</date><biblScope unit="volume">28</biblScope><biblScope unit="issue">14</biblScope><biblScope unit="page" from="1441">1441</biblScope><biblScope unit="page" to="1460">1460</biblScope></imprint><idno type="ISSN">0363-9061</idno></series><idno type="istex">71DF2D25D3A25EFE9DE0BCCCB84FAA3B74C73243</idno><idno type="DOI">10.1002/nag.395</idno><idno type="ArticleID">NAG395</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0363-9061</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cam‐Clay plasticity</term><term>consolidation</term><term>excavation</term><term>finite element simulation</term><term>hydroshield</term><term>settlements</term><term>shield tunnelling</term><term>soft soil</term><term>tail void grouting</term><term>tunnel lining</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A three‐dimensional finite element simulation model for shield‐driven tunnel excavation is presented. The model takes into account all relevant components of the construction process (the soil and the ground water, the tunnel boring machine with frictional contact to the soil, the hydraulic jacks, the tunnel lining and the tail void grouting). The paper gives a detailed description of the model components and the stepwise procedure to simulate the construction process. The soil and the grout material are modelled as saturated porous media using a two‐field finite element formulation. This allows to take into account the groundwater, the grouting pressure and the fluid interaction between the soil and slurry at the cutting face and between the soil and grout around the tail void. A Cam‐Clay plasticity model is used to describe the material behaviour of cohesive soils. The cementitious grouting material in the tail void is modelled as an ageing elastic material with time‐dependent stiffness and permeability. To allow for an automated computation of arbitrarily long and also curvilinear driving paths with suitable finite element meshes, the simulation procedure has been fully automated. The simulation of a tunnel advance in soft cohesive soil below the ground water table is presented and the results are compared with measurements taken from the literature. Copyright © 2004 John Wiley & Sons, Ltd.</div></front></TEI><affiliations><list><country><li>Allemagne</li></country></list><tree><country name="Allemagne"><noRegion><name sortKey="Kasper, Thomas" sort="Kasper, Thomas" uniqKey="Kasper T" first="Thomas" last="Kasper">Thomas Kasper</name></noRegion><name sortKey="Kasper, Thomas" sort="Kasper, Thomas" uniqKey="Kasper T" first="Thomas" last="Kasper">Thomas Kasper</name><name sortKey="Meschke, Gunther" sort="Meschke, Gunther" uniqKey="Meschke G" first="Günther" last="Meschke">Günther Meschke</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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