Numerical study of impact of soil anisotropy on seismic performance of retaining structure

Ming, HY; Li, XS; Dafalias, YF

dc.contributor.author	Ming, HY	en
dc.contributor.author	Li, XS	en
dc.contributor.author	Dafalias, YF	en
dc.date.accessioned	2014-03-01T01:56:21Z
dc.date.available	2014-03-01T01:56:21Z
dc.date.issued	2007	en
dc.identifier.issn	15323641	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/28073
dc.subject	Anisotropy	en
dc.subject	Constitutive models	en
dc.subject	Coupling	en
dc.subject	Earth pressure	en
dc.subject	Liquefaction	en
dc.subject	Retaining walls	en
dc.subject	Seismic effects	en
dc.subject.other	Anisotropy	en
dc.subject.other	Constitutive models	en
dc.subject.other	Finite element method	en
dc.subject.other	Pressure	en
dc.subject.other	Retaining walls	en
dc.subject.other	Seismic response	en
dc.subject.other	Shear strength	en
dc.subject.other	Soil liquefaction	en
dc.subject.other	Strain	en
dc.subject.other	Stress analysis	en
dc.subject.other	Structural loads	en
dc.subject.other	Seismic effect	en
dc.subject.other	Soil anisotropy	en
dc.subject.other	Triaxial compression	en
dc.subject.other	Soil structure interactions	en
dc.subject.other	anisotropy	en
dc.subject.other	compression	en
dc.subject.other	coupling	en
dc.subject.other	finite element method	en
dc.subject.other	loading	en
dc.subject.other	retaining wall	en
dc.subject.other	seismicity	en
dc.subject.other	shear strength	en
dc.subject.other	soil-structure interaction	en
dc.subject.other	stress-strain relationship	en
dc.title	Numerical study of impact of soil anisotropy on seismic performance of retaining structure	en
heal.type	journalArticle	en
heal.identifier.primary	10.1061/(ASCE)1532-3641(2007)7:5(382)	en
heal.identifier.secondary	http://dx.doi.org/10.1061/(ASCE)1532-3641(2007)7:5(382)	en
heal.publicationDate	2007	en
heal.abstract	Recent laboratory investigations indicate that the stress-strain-strength responses of granular soils are appreciably affected by the fabric orientation of the soil relative to the frame of principal stresses. Especially, a sand specimen exhibiting a dilative response during triaxial compression may show a contractive response during triaxial extension under otherwise identical conditions. This observation is of practical importance for applications concerning essentially undrained loading conditions, because the effective mean normal stress at failure, and consequently, the shear strength, associated with an undrained contractive path are considerably lower than those following a dilative path. This raises a question about the impact of soil anisotropy on seismic performance of retaining structures subjected to active and passive earth pressures, because the directions of principal stresses in retained soils for the two cases are very different. This note presents a set of fully coupled finite-element analyses incorporating an anisotropic sand model. The analyses reveal that the impact of fabric anisotropy could be significant when the retaining structure is under passive earth pressure conditions. © 2007 ASCE.	en
heal.journalName	International Journal of Geomechanics	en
dc.identifier.doi	10.1061/(ASCE)1532-3641(2007)7:5(382)	en
dc.identifier.volume	7	en
dc.identifier.issue	5	en
dc.identifier.spage	382	en
dc.identifier.epage	388	en