A thermo-poro-visco-plastic shear band model for seismic triggering and evolution of catastrophic landslides

Gerolymos, N; Vardoulakis, I; Gazetas, G

dc.contributor.author	Gerolymos, N	en
dc.contributor.author	Vardoulakis, I	en
dc.contributor.author	Gazetas, G	en
dc.date.accessioned	2014-03-01T01:25:51Z
dc.date.available	2014-03-01T01:25:51Z
dc.date.issued	2007	en
dc.identifier.issn	0038-0806	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17772
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-34247109378&partnerID=40&md5=9b858b90e4f8f0f78685fece71169d73	en
dc.subject	Catastrophic landslide	en
dc.subject	Clay	en
dc.subject	Heat generated pore-water pressures	en
dc.subject	Neural network	en
dc.subject	Shear band	en
dc.subject	Thermo-plasticity	en
dc.subject	Thermo-poro-viscoplasticity	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	Catastrophic landslide	en
dc.subject.other	Catastrophic landslides	en
dc.subject.other	Heat generated pore-water pressures	en
dc.subject.other	Pore-water pressures	en
dc.subject.other	Thermoplasticity	en
dc.subject.other	Clay minerals	en
dc.subject.other	Constitutive models	en
dc.subject.other	Deformation	en
dc.subject.other	Electric network analysis	en
dc.subject.other	Friction	en
dc.subject.other	Landslides	en
dc.subject.other	Neural networks	en
dc.subject.other	Plasticity	en
dc.subject.other	Seismology	en
dc.subject.other	Shear bands	en
dc.subject.other	Stress-strain curves	en
dc.subject.other	Viscoplasticity	en
dc.subject.other	Viscosity	en
dc.subject.other	Geologic models	en
dc.title	A thermo-poro-visco-plastic shear band model for seismic triggering and evolution of catastrophic landslides	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	The goal of this paper is to develop a constitutive model for the rapid deformation of clay-rich shear zones. Such a model would be necessary to describe the seismic triggering and evolution of catastrophic landslides. The model is based on: (a) the well-documented in the literature strain-softening and viscoplastic behaviour of saturated clays, and (b) the concept of frictional softening due to heat generated pore-water pressures. The inelastic stress-strain relationship is described with a 1-dimensional cyclic constitutive model of the (Bouc-Wen) type, coupled with a Cam-Clay frictional law with hardening and a set of equations that govern the mechanism of heat-generated pore-water pressure build up. Calibration of the model parameters is accomplished through laboratory tests, with the help of artificial neural network analysis. The influence of key variables on the behaviour of a rapidly deforming shear band is thoroughly investigated and the results of the analysis are critically discussed.	en
heal.publisher	JAPANESE GEOTECHNICAL SOC	en
heal.journalName	Soils and Foundations	en
dc.identifier.isi	ISI:000245704000002	en
dc.identifier.volume	47	en
dc.identifier.issue	1	en
dc.identifier.spage	11	en
dc.identifier.epage	25	en