Journal
ENGINEERING STRUCTURES
Volume 44, Issue -, Pages 210-221Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.engstruct.2012.06.001
Keywords
Segmental tunnel linings; Coupling effects; 3D response; Numerical simulation; Nonlinear analysis
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Funding
- Spanish Ministry of Economy and Competitiveness (MINECO)
- European Funds for Regional Development [BIA2009-13233]
- European Social Fund (ESF)
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The particular configuration of segmental tunnel linings produces that its structural response in front of usual design loads could present a significant three dimensionality due to the structural interaction between adjacent rings (coupling effects). The present paper studies the phenomena associated to coupling effects, determines the main involved parameters and analyzes their influence on a real lining structural response by means of a 3D numerical model. The comparison with the usual plane models currently employed in linings designs provide significant conclusions about the coupling effects implications and the conditions in which become more relevant. (C) 2012 Elsevier Ltd. All rights reserved.
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