Numerical prediction of the dynamic behavior of two earth dams in italy using a fully coupled nonlinear approach

Elia, G; Amorosi, A; Chan, AHC; Kavvadas, MJ

dc.contributor.author	Elia, G	en
dc.contributor.author	Amorosi, A	en
dc.contributor.author	Chan, AHC	en
dc.contributor.author	Kavvadas, MJ	en
dc.date.accessioned	2014-03-01T02:11:33Z
dc.date.available	2014-03-01T02:11:33Z
dc.date.issued	2012	en
dc.identifier.issn	15323641	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29939
dc.subject	Constitutive models	en
dc.subject	Earthquake loads	en
dc.subject	Embankment stability	en
dc.subject	Finite-element method	en
dc.subject	Soil dynamics	en
dc.subject.other	Crest settlement	en
dc.subject.other	Dynamic behaviors	en
dc.subject.other	Dynamic loading conditions	en
dc.subject.other	Dynamic loadings	en
dc.subject.other	Dynamic performance	en
dc.subject.other	Earthquake loads	en
dc.subject.other	Effective stress	en
dc.subject.other	Elastoplastic constitutive model	en
dc.subject.other	Embankment stability	en
dc.subject.other	Finite-element	en
dc.subject.other	Fully-coupled	en
dc.subject.other	Granular soils	en
dc.subject.other	Horizontal and vertical displacement	en
dc.subject.other	In-situ test	en
dc.subject.other	Initial stress state	en
dc.subject.other	Internal variables	en
dc.subject.other	Material models	en
dc.subject.other	Mechanical behavior	en
dc.subject.other	Nonlinear approach	en
dc.subject.other	Numerical predictions	en
dc.subject.other	Return periods	en
dc.subject.other	Seismic action	en
dc.subject.other	Seismic motions	en
dc.subject.other	Seismic stability	en
dc.subject.other	Soil dynamics	en
dc.subject.other	Cofferdams	en
dc.subject.other	Constitutive models	en
dc.subject.other	Dynamic loads	en
dc.subject.other	Earthquakes	en
dc.subject.other	Embankment dams	en
dc.subject.other	Finite element method	en
dc.subject.other	Geologic models	en
dc.subject.other	Soil mechanics	en
dc.subject.other	Static analysis	en
dc.subject.other	System stability	en
dc.subject.other	Hydraulic structures	en
dc.subject.other	assessment method	en
dc.subject.other	clay soil	en
dc.subject.other	dynamic response	en
dc.subject.other	earth dam	en
dc.subject.other	effective stress	en
dc.subject.other	elastoplasticity	en
dc.subject.other	embankment dam	en
dc.subject.other	finite element method	en
dc.subject.other	loading	en
dc.subject.other	numerical model	en
dc.subject.other	prediction	en
dc.subject.other	seismic response	en
dc.subject.other	soil dynamics	en
dc.subject.other	soil mechanics	en
dc.subject.other	stability analysis	en
dc.subject.other	Italy	en
dc.title	Numerical prediction of the dynamic behavior of two earth dams in italy using a fully coupled nonlinear approach	en
heal.type	journalArticle	en
heal.identifier.primary	10.1061/(ASCE)GM.1943-5622.0000043	en
heal.identifier.secondary	http://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0000043	en
heal.publicationDate	2012	en
heal.abstract	The paper deals with the seismic stability assessment of two existing earth dams in Italy using a fully coupled effective stress nonlinear approach implemented in a finite-element (FE) code. The mechanical behavior of the involved clayey and granular soils is described through advanced elastoplastic constitutive models, calibrated on laboratory and in situ test results. Before the application of the seismic motions, appropriate FE static analyses are performed in both cases to define the initial stress state and the internal variables of the material models. The stability of both dams during dynamic loading is proved by inspection of the cumulated horizontal and vertical displacement time histories of the monitored solid nodes, which become constant immediately after the end of the seismic actions. Moreover, the computed crest settlements induced by the earthquakes are considerably smaller than the service freeboard of the dams. Because the applied seismic actions are characterized by high return periods, the presented results are indicative of a satisfactory dynamic performance of the two embankments during extreme dynamic loading conditions. © 2011 American Society of Civil Engineers.	en
heal.journalName	International Journal of Geomechanics	en
dc.identifier.doi	10.1061/(ASCE)GM.1943-5622.0000043	en
dc.identifier.volume	11	en
dc.identifier.issue	6	en
dc.identifier.spage	504	en
dc.identifier.epage	518	en