Publication:
Numerical analysis of twin tunnels lining under different seismic conditions

dc.affiliation.dptoUC3M. Departamento de Mecánica de Medios Continuos y Teoría de Estructurases
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Dinámica y Fractura de Elementos Estructuraleses
dc.contributor.authorEl Omari, Abdelhay
dc.contributor.authorChourak, Mimoun
dc.contributor.authorEchebba, El Mehdi
dc.contributor.authorCherif, Seif-Eddine
dc.contributor.authorNavarro Ugena, Carlos
dc.contributor.authorRougui, Mohamed
dc.contributor.authorHage Chehade, Fadi
dc.contributor.authorLamas Fernández, Francisco
dc.contributor.authorChaaraoui, Aboubakr
dc.date.accessioned2021-09-23T10:44:20Z
dc.date.available2021-09-23T10:44:20Z
dc.date.issued2021-02-18
dc.description.abstractThe last seismic events showed that tunnel lining may suffer extensive damage. Employing numerical modeling has a great importance in predicting the seismic performance of tunnels. This paper tests the tunnel lining of the Zaouit Ait Mellal (ZAM) twin tunnels located between the cities of Marrakesh and Agadir in Morocco. Dynamic analysis was adopted by FLAC 2D software using the finite-difference elements. Four soil cross-sections were chosen, with different support devices installed along the twin tunnels, such as rock bolts and steel ribs. The seismic signals introduced as input were obtained from three different earthquakes: Al Hoceima 2004 in Morocco, EL Centro 1940 in the USA, and Kobe 1995 in Japan. The numerical results show that the deformation of the tunnel lining is more noteworthy in the sections using steel ribs compared to those using rock bolts, which is observed by the large values of relative displacement, reaching 1020 (mm) and 2.29 × 105 (N.m/m) of maximum bending moment. The analysis indicates that these sections present higher vulnerability during an earthquake, which should be considered when looking at the overall safety of the tunnel.en
dc.format.extent14
dc.identifier.bibliographicCitationEl Omari, A., Chourak, M., Echebba, E. M., Cherif, S.-E., Navarro Ugena, C., Rougui, M., Chehade, F. H., Lamas Fernández, F., & Chaaraoui, A. (2021). Numerical Analysis of Twin Tunnels Lining under Different Seismic Conditions. Infrastructures, 6(2), 29.en
dc.identifier.doihttps://doi.org/10.3390/infrastructures6020029
dc.identifier.issn2412-3811
dc.identifier.publicationfirstpage1
dc.identifier.publicationissue2
dc.identifier.publicationlastpage14
dc.identifier.publicationtitleInfrastructuresen
dc.identifier.publicationvolume6
dc.identifier.urihttps://hdl.handle.net/10016/33314
dc.identifier.uxxiAR/0000028278
dc.language.isoeng
dc.publisherMDPIen
dc.rights© 2021 by the authorsen
dc.rightsAtribución 3.0 España
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/
dc.subject.ecienciaIngeniería Industriales
dc.subject.otherFinite-Difference Elementen
dc.subject.otherSeismic Performanceen
dc.subject.otherSoil Cross-Sectionsen
dc.subject.otherSupport Typeen
dc.subject.otherTunnel Liningen
dc.titleNumerical analysis of twin tunnels lining under different seismic conditionsen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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