Efficient numerical modeling of liquefaction-induced deformations of soil structures

Papadimitriou, A; Andrianopoulos, K; Bouckovalas, G

dc.contributor.author	Papadimitriou, A	en
dc.contributor.author	Andrianopoulos, K	en
dc.contributor.author	Bouckovalas, G	en
dc.date.accessioned	2014-03-01T02:51:36Z
dc.date.available	2014-03-01T02:51:36Z
dc.date.issued	2008	en
dc.identifier.issn	08950563	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35587
dc.subject.other	Bounding surface model	en
dc.subject.other	Cyclic shear strain	en
dc.subject.other	Elasto-plastic	en
dc.subject.other	Excess pore pressure	en
dc.subject.other	Finite difference	en
dc.subject.other	Ground accelerations	en
dc.subject.other	Lateral spreading	en
dc.subject.other	Noncohesive soil	en
dc.subject.other	Numerical methodologies	en
dc.subject.other	Numerical modeling	en
dc.subject.other	Numerical results	en
dc.subject.other	Sand layer	en
dc.subject.other	Soil structure	en
dc.subject.other	Civil engineering	en
dc.subject.other	Dynamics	en
dc.subject.other	Earthquakes	en
dc.subject.other	Engineering geology	en
dc.subject.other	Geotechnical engineering	en
dc.subject.other	Soil structure interactions	en
dc.subject.other	Soils	en
dc.subject.other	Two dimensional	en
dc.subject.other	Soil liquefaction	en
dc.title	Efficient numerical modeling of liquefaction-induced deformations of soil structures	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1061/40975(318)120	en
heal.identifier.secondary	http://dx.doi.org/10.1061/40975(318)120	en
heal.publicationDate	2008	en
heal.abstract	A new numerical methodology is presented for the simulation of the non cohesive soil response under small, medium and large cyclic shear strains, with special interest given to liquefaction phenomena. The new methodology is based on a recently proposed elastoplastic bounding surface model, which has been implemented to the 2D finite difference code FLAC, via its User-Defined-Model capability. In particular, the emphasis in this paper is on comparing measurements to numerical results for the seismic response of a liquefiable sand layer that has a mild slope leading to the detrimental phenomenon of lateral spreading. The new methodology is proved capable of accurately predicting the time-histories of ground acceleration, excess pore pressure buildup and accumulation of displacements at all depths within the mildly-sloping liquefiable layer. Moreover, the new methodology provides insight to the mechanism of accumulation of displacement during lateral spreading. © 2008 ASCE.	en
heal.journalName	Geotechnical Special Publication	en
dc.identifier.doi	10.1061/40975(318)120	en
dc.identifier.issue	181	en