Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/9253
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dc.contributor.authorEgeli, İsfendiyar-
dc.contributor.authorGürbüz, Çağdaş-
dc.date.accessioned2020-07-25T22:09:15Z-
dc.date.available2020-07-25T22:09:15Z-
dc.date.issued2018-
dc.identifier.issn0718-915X-
dc.identifier.urihttps://doi.org/10.7764/RDLC.17.1.103-
dc.identifier.urihttps://hdl.handle.net/11147/9253-
dc.description.abstractThe original design of the planned Izmir Bay Immersed Tube Tunnel, considered it to be a continuous subsea tunnel for the whole length of about 7.6 km. But this was later changed into having 2 shorter tubes of 2.7 km long each connected thru' a 2.2 km long artificial island created in the middle of the bay from the excess dredged material, a concept which also reduces costs and increases efficiency. This island will serve as a venue for the 2025 Expo Exhibition, which Izmir city will apply to organize in the future. Reason for the research study was to provide a preliminary design, using a dynamic analysis, during the current pre-feasibility stage, of the immersed tunnel to show whether it can be built across the Izmir Bay. This paper takes into account the new alignment and presents the results of a 2-D dynamic analysis conducted of the prefabricated 100m long tunnel elements, sitting within a backfilled dredged ditch, dug after the recommended ground improvement was carried out. Analyses considered staged construction and the results showed that: Tunnel units and its surrounding soils inside the dredged ditch act together to provide a better earthquake response with a damping effect of the earthquake force; Tunnel units do not float to the sea surface, but continued to stay inside the dredged ditch and applied positive stresses to the foundations during the design earthquakes. As there was no floating, there was no need for anchoring the tunnel to ditch bottom; Tunnel units and immersion joints (made of specified strong elastomer material) continued to stay in compression longitudinally and provided a superb water-tightness level; There were no risky (un-tolerable) ground deformations during, after striking of the design earthquakes. Total vertical and differential displacements of the tunnel units and in the surrounding soils were all at acceptable levels; Concrete surface crack widths occurring in the tunnel units, during striking of the design earthquakes were also found to be allowable. Study results show that the tunnel elements can withstand Mw=7 short duration (<10 sec) or Mw=6 long duration (>10 sec) earthquakes without major damages to their structure.en_US
dc.language.isoenen_US
dc.publisherEscuela de Construcción Civil of Pontificia Universidad Católica de Chileen_US
dc.relation.ispartofRevista de la Construccionen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectImmersed tube tunnelen_US
dc.subjectDynamic 2-D analysisen_US
dc.subjectSoil-tunnel interactionen_US
dc.subjectEarthquake response of subsea tunnelsen_US
dc.titleDynamic analysis of an immersed tunnel in Izmiren_US
dc.typeArticleen_US
dc.institutionauthorGürbüz, Çağdaş-
dc.departmentİzmir Institute of Technology. Civil Engineeringen_US
dc.identifier.volume17en_US
dc.identifier.issue1en_US
dc.identifier.startpage103en_US
dc.identifier.endpage111en_US
dc.identifier.wosWOS:000437488300009en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.7764/RDLC.17.1.103-
dc.relation.doi10.7764/RDLC.17.1.103en_US
dc.coverage.doi10.7764/RDLC.17.1.103en_US
dc.identifier.wosqualityQ4-
dc.identifier.scopusqualityQ3-
item.fulltextWith Fulltext-
item.openairetypeArticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
crisitem.author.dept03.03. Department of Civil Engineering-
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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