Comparison of displacement field predicted by 2D and 3D finite element modelling of shallow NATM tunnels in clays
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F11%3A10107481" target="_blank" >RIV/00216208:11310/11:10107481 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/gete.201000009" target="_blank" >http://dx.doi.org/10.1002/gete.201000009</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/gete.201000009" target="_blank" >10.1002/gete.201000009</a>
Alternative languages
Result language
angličtina
Original language name
Comparison of displacement field predicted by 2D and 3D finite element modelling of shallow NATM tunnels in clays
Original language description
The 2D load-reduction method for simulating NATM tunnels using plane strain finite elements is evaluated in the paper 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. Time-dependent behaviour of shotcrete lining was considered in 3D simulations, whereas constant final stiffness was used in the plane strainanalyses. The 2D analyses were thus controlled by a single parameter that accounts for 3D effects. It is shown that for an optimum value of this parameter, the displacement field predicted by the 2D method agrees well with the 3D simulations. In some cases only, a discrepancy was observed in the close vicinity of the tunnel. 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 tunn
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JM - Structural engineering
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP105%2F11%2F1884" target="_blank" >GAP105/11/1884: Horizontal in situ stress in clays and its use in finite element analyses</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
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geotechnik
ISSN
0172-6145
e-ISSN
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Volume of the periodical
34
Issue of the periodical within the volume
2
Country of publishing house
DE - GERMANY
Number of pages
12
Pages from-to
115-126
UT code for WoS article
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EID of the result in the Scopus database
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