Convergence-confinement method for simulating NATM tunnels evaluated by comparison with full 3D simulations

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F10%3A10081092" target="_blank" >RIV/00216208:11310/10:10081092 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Convergence-confinement method for simulating NATM tunnels evaluated by comparison with full 3D simulations
Original language description
The convergence-confinement method (CCM) for simulating NATM tunnels using plane strain finite element method was in the paper evaluated by comparison with fully 3D simulations. Three real shallow tunnels in urban environment in different stiff clays were simulated. The soil behaviour was described by an advanced non-linear soil constitutive model based on the hypoplasticity theory. It was shown that for an optimum value of the parameter lambdad the displacement field predicted by the CCM method agreeswell with the 3D simulations. The controlling parameter was, however, found to be dependent on the problem simulated (for the same material) and also on the material properties (for the same tunneling problem).
Czech name
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Czech description
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Project
<a href="/en/project/GA205%2F08%2F0732" target="_blank" >GA205/08/0732: The development and evaluation of numerical methods for prediction of the behaviour of tunnels in fine-grained soils</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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