Modelling of tunnel lining degradation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU128286" target="_blank" >RIV/00216305:26110/18:PU128286 - isvavai.cz</a>
Result on the web
<a href="https://master.grad.hr/cetra/ocs/index.php/cetra5/cetra2018/paper/view/794" target="_blank" >https://master.grad.hr/cetra/ocs/index.php/cetra5/cetra2018/paper/view/794</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5592/CO/CETRA.2018.794" target="_blank" >10.5592/CO/CETRA.2018.794</a>
Alternative languages
Result language
angličtina
Original language name
Modelling of tunnel lining degradation
Original language description
Long-term life of tunnel structures within the transport infrastructure is expected to a return of higher investment for construction. Structure of tunnel lining can be exposed to negative influences of ground water etc., which cause degradation of used materials during this long period of time. Reduction of bearing capacity is the result, which in the critical case may cause the collapse of whole structure. Thus, it is advisable to know response of the weakened structure in order to identify the negative trends in its behaviour early and to proceed with remediation. Consequences of lining degradation can be analysed, for example, by FEM (Finite Elements Method) modelling of tunnel. Analysis of utility tunnel in Brno in Czech Republic is presented in this paper as an example. The modelling dealt with the simulation of the construction process for determining the current stress conditions around the tunnel. Further, detailed modelling of sprayed concrete lining using an advanced material model was focused on. The impact on the tunnel stability was investigated by the reduction of bearing capacity of the lining. Possible degradation of the structure was simulated by reducing the thickness of the lining and the material characteristics reduction. Determination of the limit deformations for geotechnical monitoring system can be an example of outcome from the analysis. Unfavourable development of the load bearing capacity can be recognized in early states and collapse can be prevented.
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
20102 - Construction engineering, Municipal and structural engineering
Result continuities
Project
—
Continuities
O - Projekt operacniho programu
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Road and Rail Infrastructure V, Proceedings of the Conference CETRA 2018
ISBN
978-953-8168-25-3
ISSN
—
e-ISSN
—
Number of pages
7
Pages from-to
1499-1505
Publisher name
University of Zagreb
Place of publication
Zagreb
Event location
Zadar
Event date
May 17, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000518218300189