NEW ADVANCED MATERIAL MODEL FOR NUMERICAL MODELLING OF SHALLOW TUNNELS IN SOFT CLAYS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00231122" target="_blank" >RIV/68407700:21110/15:00231122 - isvavai.cz</a>
Result on the web
<a href="http://www.sgem.org/sgemlib/spip.php?article5392" target="_blank" >http://www.sgem.org/sgemlib/spip.php?article5392</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/SGEM2015/B12/S2.063" target="_blank" >10.5593/SGEM2015/B12/S2.063</a>
Alternative languages
Result language
angličtina
Original language name
NEW ADVANCED MATERIAL MODEL FOR NUMERICAL MODELLING OF SHALLOW TUNNELS IN SOFT CLAYS
Original language description
This paper describes a newly developed advanced material model which can better simulate the real behaviour of the soil mass during the tunnel excavation and contains the following main features. Firstly, the model is based on the rounded Mohr-Coulomb (William-Warnke) failure yield criterion which eliminates the singular tips from the Mohr-Coulomb surface and has better agreement with the data from the experimental tests. Secondly, the model has the possibility to simulate the non-linear isotropic hardening and softening of the soils. Thirdly, it is capable to increase the stiffness modulus with increasing depth or stress level and finally the model has the ability to simulate the non-linear decrease of the stiffness modulus in a small strain range (0.0001 ? 0.1%). The combination of these improvements caused that the width and the shape of the settlement troughs are more accurately modelled, the excavation heave is reduced to more realistic values and the results of the soil mass beha
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JN - Civil engineering
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
15th INTERNATIONAL MULTIDISCIPLINARY SCIENTIFIC GEOCONFERENCE SGEM 2015
ISBN
978-619-7105-32-2
ISSN
1314-2704
e-ISSN
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Number of pages
8
Pages from-to
471-478
Publisher name
Academy of Sciences
Place of publication
Varna
Event location
Albena
Event date
Jun 18, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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