Effective stress analysis of the seismic response of multi-block gravity quay wall: application to Piraeus port

Κουμπαρέλος, Νικόλαος; Koumparelos, Nikolaos

dc.contributor.author	Κουμπαρέλος, Νικόλαος	en
dc.contributor.author	Koumparelos, Nikolaos	el
dc.date.accessioned	2015-11-26T08:32:40Z
dc.date.available	2015-11-26T08:32:40Z
dc.date.issued	2015-11-26
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/41664
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.11143
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ελλάδα	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/gr/	*
dc.subject	Quay-wall	en
dc.subject	liquefaction	en
dc.subject	PLAXIS2D	en
dc.subject	fragility	en
dc.subject	UBCSAND	en
dc.subject	Κρηπιδότοιχος	el
dc.subject	Ρευστοποίηση	el
dc.subject	Τρωτότητα	el
dc.subject	Προσομοίωση	el
dc.subject	Πεπερασμένα	el
dc.title	Effective stress analysis of the seismic response of multi-block gravity quay wall: application to Piraeus port	en
dc.title	Ανάλυση της σεισμικής απόκρισης λιμενικού κρηπιδότοιχου πολλαπλών τεμαχιών με τη μέθοδο των ενεργών τάσεων: εφαρμογή στο λιμάνι τού Πειραιά	el
dc.contributor.department	Τομέας Γεωτεχνικής	el
heal.type	bachelorThesis
heal.classification	Geotechnical engineering	en
heal.classification	Γεωτεχνική μηχανική	el
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh2013000289
heal.language	en
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2015-07-06
heal.abstract	Experience has shown that port facilities, and especially caisson-type quay walls, are particularly vulnerable to earthquake related hazards. Motivated by numerous observed cases where caisson-type quay walls suffered large displacement and rotation during earthquakes, an illustrative numerical analysis is presented for the response of a typical caisson-type quay wall section at Piraeus port in Greece. Utilizing the Byrne's elastoplastic constitutive model, an effective stress dynamic analysis is performed using as seismic excitation seven recorded motions of the seismic environment throughout the world. These excitations are applied to three different types of the backfill soil regarding the relative density (Dr). Primarily, the results emphasize the role of relative density and time history of excitation on the horizontal displacement and the tilt of a typical caisson-type quay wall. Supplementary results demonstrate secondary deformations of a caisson-type quay wall, like the settlement of the backfill soil and the heave of the soil surface at the sea bottom, in front of the toe of the wall. The excess pore-water pressure, positive or negative, build-up during shaking is also examined in extent, shedding light on the liquefied or non-liquefied regions of the soil profile and the ensuing deformation of the adjacent quay-wall, in sight of interaction. The numerical modeling is performed using the two-dimensional finite element program Plaxis2D in order to extract the results that are of our interest in this thesis, either it is the time histories of some variables or the ultimate values of others. Concluding, the main purpose of this thesis is to produce fragility functions for the aforementioned variables for each backfill soil relative density and therefore to investigate the general agreement of the numerical results of a typical caisson-type quay wall section at Piraeus port in Greece with those of different case studies throughout the world.	en
heal.advisorName	Γερόλυμος, Νικόλαος	en
heal.committeeMemberName	Γαζέτας, Γεώργιος	en
heal.committeeMemberName	Γεωργίου, Βασιλική	en
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Πολιτικών Μηχανικών. Τομέας Γεωτεχνικής	el
heal.academicPublisherID	ntua
heal.numberOfPages	107 σ.
heal.fullTextAvailability	true