PERMANENT DEFORMATION ON PREEXISTING SLIDING SURFACES IN DAMS

GAZETAS, G; UDDIN, N

dc.contributor.author	GAZETAS, G	en
dc.contributor.author	UDDIN, N	en
dc.date.accessioned	2014-03-01T01:10:06Z
dc.date.available	2014-03-01T01:10:06Z
dc.date.issued	1994	en
dc.identifier.issn	0733-9410	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11312
dc.subject	Permanent Deformation	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	EARTH DAMS	en
dc.title	PERMANENT DEFORMATION ON PREEXISTING SLIDING SURFACES IN DAMS	en
heal.type	journalArticle	en
heal.identifier.primary	10.1061/(ASCE)0733-9410(1994)120:11(2041)	en
heal.identifier.secondary	http://dx.doi.org/10.1061/(ASCE)0733-9410(1994)120:11(2041)	en
heal.language	English	en
heal.publicationDate	1994	en
heal.abstract	A finite-element model capable of computing permanent deformations along preexisting sliding surfaces in darns and embankments is used to evaluate the error in the current state-of-practice two-step procedures that are based on the simplifying assumption that the computation of dynamic response and of the resulting sliding displacements can be decoupled. Both sinusoidal and real earthquake ground motions are used as excitation, and Coulomb's friction law governs sliding along any point of the rigid-plastic tensionless interface. It is found that only when the dominant excitation frequencies lie in the proximity of the fundamental dam frequency will the permanent deformation from the decoupling assumption exceed appreciably the ''single-step'' value. As a validation of the single-step procedure, an analysis is performed and shown to successfully explain the nonsymmetric response of La Villita Dam recorded in the 1985 Mexico Earthquake.	en
heal.publisher	ASCE-AMER SOC CIVIL ENGINEERS	en
heal.journalName	JOURNAL OF GEOTECHNICAL ENGINEERING-ASCE	en
dc.identifier.doi	10.1061/(ASCE)0733-9410(1994)120:11(2041)	en
dc.identifier.isi	ISI:A1994PM71000008	en
dc.identifier.volume	120	en
dc.identifier.issue	11	en
dc.identifier.spage	2041	en
dc.identifier.epage	2061	en