Interaction of segmental tunnel linings and dip-slip faults—tabriz subway tunnels
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/86977 |
Resumo: | In some subsurface urban development projects, bedrock faults intersecting with the tunnel path are inevitable. Due to the high costs of urban tunnel projects, it is necessary to study the behavior of such concrete structures under fault movement risks. Using an advanced 3D numerical finite difference code and a plastic hardening constitutive model for the soil, this paper examined the performance of the straight and oblique segmented structures of Tabriz Subway Line 2 under large deformations. The Tabriz Line 2 tunnel passes through a reverse fault called the Baghmisheh Fault. The fault–tunnel simulations were validated by centrifuge tests on the segmental tunnel for normal faulting. In the centrifuge tests and validation models, there was a maximum difference of 15%. According to the results of the Tabriz Line 2 tunnel under reverse faulting, segmental structures outperform no-joint linings when it comes to fault movement. During reverse fault movement, line 2 segments did not collapse but showed slight deformations. However, continuous structures collapsed under faulting, i.e., the structural forces created exceeded the section strength capacity. Among the segmental structures, the lining with oblique joints showed better behavior against faulting than the lining with straight joints. For better tunnel performance under fault movement, oblique joints should be used in segmental structures in faulting areas. |
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Interaction of segmental tunnel linings and dip-slip faults—tabriz subway tunnelsNormal and reverse faultSegmental structureNumerical simulationCentrifuge testOblique and straight jointsJoint separationIn some subsurface urban development projects, bedrock faults intersecting with the tunnel path are inevitable. Due to the high costs of urban tunnel projects, it is necessary to study the behavior of such concrete structures under fault movement risks. Using an advanced 3D numerical finite difference code and a plastic hardening constitutive model for the soil, this paper examined the performance of the straight and oblique segmented structures of Tabriz Subway Line 2 under large deformations. The Tabriz Line 2 tunnel passes through a reverse fault called the Baghmisheh Fault. The fault–tunnel simulations were validated by centrifuge tests on the segmental tunnel for normal faulting. In the centrifuge tests and validation models, there was a maximum difference of 15%. According to the results of the Tabriz Line 2 tunnel under reverse faulting, segmental structures outperform no-joint linings when it comes to fault movement. During reverse fault movement, line 2 segments did not collapse but showed slight deformations. However, continuous structures collapsed under faulting, i.e., the structural forces created exceeded the section strength capacity. Among the segmental structures, the lining with oblique joints showed better behavior against faulting than the lining with straight joints. For better tunnel performance under fault movement, oblique joints should be used in segmental structures in faulting areas.(undefined)Multidisciplinary Digital Publishing Institute (MDPI)Universidade do MinhoRamesh, AsmaRashiddel, AlirezaHajihassani, MohsenDias, DanielKiani, Majid2023-07-042023-07-04T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/86977engRamesh, A.; Rashiddel, A.; Hajihassani, M.; Dias, D.; Kiani, M. Interaction of Segmental Tunnel Linings and Dip-Slip Faults—Tabriz Subway Tunnels. Appl. Sci. 2023, 13, 7866. https://doi.org/10.3390/app131378662076-341710.3390/app13137866https://www.mdpi.com/2076-3417/13/13/7866info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-10-21T01:27:59Zoai:repositorium.sdum.uminho.pt:1822/86977Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:39:08.056202Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Interaction of segmental tunnel linings and dip-slip faults—tabriz subway tunnels |
title |
Interaction of segmental tunnel linings and dip-slip faults—tabriz subway tunnels |
spellingShingle |
Interaction of segmental tunnel linings and dip-slip faults—tabriz subway tunnels Ramesh, Asma Normal and reverse fault Segmental structure Numerical simulation Centrifuge test Oblique and straight joints Joint separation |
title_short |
Interaction of segmental tunnel linings and dip-slip faults—tabriz subway tunnels |
title_full |
Interaction of segmental tunnel linings and dip-slip faults—tabriz subway tunnels |
title_fullStr |
Interaction of segmental tunnel linings and dip-slip faults—tabriz subway tunnels |
title_full_unstemmed |
Interaction of segmental tunnel linings and dip-slip faults—tabriz subway tunnels |
title_sort |
Interaction of segmental tunnel linings and dip-slip faults—tabriz subway tunnels |
author |
Ramesh, Asma |
author_facet |
Ramesh, Asma Rashiddel, Alireza Hajihassani, Mohsen Dias, Daniel Kiani, Majid |
author_role |
author |
author2 |
Rashiddel, Alireza Hajihassani, Mohsen Dias, Daniel Kiani, Majid |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Ramesh, Asma Rashiddel, Alireza Hajihassani, Mohsen Dias, Daniel Kiani, Majid |
dc.subject.por.fl_str_mv |
Normal and reverse fault Segmental structure Numerical simulation Centrifuge test Oblique and straight joints Joint separation |
topic |
Normal and reverse fault Segmental structure Numerical simulation Centrifuge test Oblique and straight joints Joint separation |
description |
In some subsurface urban development projects, bedrock faults intersecting with the tunnel path are inevitable. Due to the high costs of urban tunnel projects, it is necessary to study the behavior of such concrete structures under fault movement risks. Using an advanced 3D numerical finite difference code and a plastic hardening constitutive model for the soil, this paper examined the performance of the straight and oblique segmented structures of Tabriz Subway Line 2 under large deformations. The Tabriz Line 2 tunnel passes through a reverse fault called the Baghmisheh Fault. The fault–tunnel simulations were validated by centrifuge tests on the segmental tunnel for normal faulting. In the centrifuge tests and validation models, there was a maximum difference of 15%. According to the results of the Tabriz Line 2 tunnel under reverse faulting, segmental structures outperform no-joint linings when it comes to fault movement. During reverse fault movement, line 2 segments did not collapse but showed slight deformations. However, continuous structures collapsed under faulting, i.e., the structural forces created exceeded the section strength capacity. Among the segmental structures, the lining with oblique joints showed better behavior against faulting than the lining with straight joints. For better tunnel performance under fault movement, oblique joints should be used in segmental structures in faulting areas. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-04 2023-07-04T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/1822/86977 |
url |
https://hdl.handle.net/1822/86977 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ramesh, A.; Rashiddel, A.; Hajihassani, M.; Dias, D.; Kiani, M. Interaction of Segmental Tunnel Linings and Dip-Slip Faults—Tabriz Subway Tunnels. Appl. Sci. 2023, 13, 7866. https://doi.org/10.3390/app13137866 2076-3417 10.3390/app13137866 https://www.mdpi.com/2076-3417/13/13/7866 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute (MDPI) |
publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute (MDPI) |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133651553746944 |