Seismic effective-stress analysis of caisson quay walls: Application to kobe

Dakoulas, P; Gazetas, G

dc.contributor.author	Dakoulas, P	en
dc.contributor.author	Gazetas, G	en
dc.date.accessioned	2014-03-01T01:23:04Z
dc.date.available	2014-03-01T01:23:04Z
dc.date.issued	2005	en
dc.identifier.issn	0038-0806	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16790
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-41349117480&partnerID=40&md5=747a86ff96dab0d1c4b7b06998e968dc	en
dc.subject	Caisson wall	en
dc.subject	Case history	en
dc.subject	Constitutive model	en
dc.subject	Earthquake	en
dc.subject	Effective stress	en
dc.subject	Harbor	en
dc.subject	Kobe	en
dc.subject	Liquefaction	en
dc.subject	Pore pressures	en
dc.subject	Quay-wall	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	ABS resins	en
dc.subject.other	Caissons	en
dc.subject.other	Computational methods	en
dc.subject.other	Computer simulation	en
dc.subject.other	Deformation	en
dc.subject.other	Earthquakes	en
dc.subject.other	Finite element method	en
dc.subject.other	Foundations	en
dc.subject.other	Hydraulic structures	en
dc.subject.other	Mathematical models	en
dc.subject.other	Modal analysis	en
dc.subject.other	Pressure vessels	en
dc.subject.other	Quay walls	en
dc.subject.other	Seismic design	en
dc.subject.other	Seismology	en
dc.subject.other	Soil liquefaction	en
dc.subject.other	Soils	en
dc.subject.other	Strength of materials	en
dc.subject.other	Stress analysis	en
dc.subject.other	Case history	en
dc.subject.other	Effective stress	en
dc.subject.other	Harbor	en
dc.subject.other	Kobe	en
dc.subject.other	Pore pressures	en
dc.subject.other	Quay-wall	en
dc.subject.other	Geologic models	en
dc.title	Seismic effective-stress analysis of caisson quay walls: Application to kobe	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	Deformation-based seismic design of gravity quay-walls requires realistic computation of residual deformations. This article presents an effective-stress analysis method, which is based on an elasto-plastic constitutive model formulated into a finite-difference algorithm. The model is applicable to cohesionless soils, for a wide range of relative densities and confining pressures. The formulation is applied first to re-analyze one of the failed caisson-type quay-walls of Rokko Island during the 1995 Kobe (Hyogoken-nambu) earthquake (Case 1). Subsequently, it is applied to analyse three closely related case studies of quay-walls, subjected to the same earthquake excitation, to demonstrate the effects of ground improvement on the wall performance. Case 2 considers a quay-wall in which both the foundation and backfill consist of improved, non-liquefiable soils. Case 3 considers a quay-wall in which the backfill soil remains liquefiable, whereas the foundation soil has been improved. Finally, in Case 4 the foundation soil is liquefiable, and the backfill soil improved. The results are consistent with both field observations and earlier independent computer simulations by lai et al. 1998 which were based on the finite-element method and a different constitutive model.	en
heal.publisher	JAPANESE GEOTECHNICAL SOC	en
heal.journalName	Soils and Foundations	en
dc.identifier.isi	ISI:000232737400010	en
dc.identifier.volume	45	en
dc.identifier.issue	4	en
dc.identifier.spage	133	en
dc.identifier.epage	147	en