Thermo-poro-mechanical properties of the Aigion fault clayey gouge-application to the analysis of shear heating and fluid pressurization

Sulem, J; Vardoulakis, I; Ouffroukh, H; Perdikatsis, V

dc.contributor.author	Sulem, J	en
dc.contributor.author	Vardoulakis, I	en
dc.contributor.author	Ouffroukh, H	en
dc.contributor.author	Perdikatsis, V	en
dc.date.accessioned	2014-03-01T02:43:35Z
dc.date.available	2014-03-01T02:43:35Z
dc.date.issued	2005	en
dc.identifier.issn	0038-0806	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/31489
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-30344486162&partnerID=40&md5=6dbe1d7ee2e854edb0fd727a42b9a71d	en
dc.subject	Clay	en
dc.subject	Fault	en
dc.subject	Shear deformation	en
dc.subject	Shear-band analysis	en
dc.subject	Thermo-poro-mechanical couplings (IGC: B4/D6)	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	Clay minerals	en
dc.subject.other	Failure analysis	en
dc.subject.other	Fluid dynamics	en
dc.subject.other	Fluidization	en
dc.subject.other	Mechanical properties	en
dc.subject.other	Pressurization	en
dc.subject.other	Quality assurance	en
dc.subject.other	Active seismic	en
dc.subject.other	Back analyses	en
dc.subject.other	Effective stresses	en
dc.subject.other	Failure planes	en
dc.subject.other	Fault	en
dc.subject.other	Fluid pressurizations	en
dc.subject.other	Gulf of Corinth , Greece	en
dc.subject.other	Mechanical behaviors	en
dc.subject.other	Principal stress directions	en
dc.subject.other	Shear heating	en
dc.subject.other	Shear-band analysis	en
dc.subject.other	Slip surfaces	en
dc.subject.other	Thermo-poro-mechanical couplings (IGC: B4/D6)	en
dc.subject.other	Stresses	en
dc.title	Thermo-poro-mechanical properties of the Aigion fault clayey gouge-application to the analysis of shear heating and fluid pressurization	en
heal.type	conferenceItem	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	In this paper, the mechanism of fault pressurization in rapid slip events is analyzed on the basis of a complete characterization of the thermo-poro-mechanical behavior of a clayey gouge extracted at 760 m depth in Aigion fault in the active seismic zone of the Gulf of Corinth, Greece. It is shown that the thermally collapsible character of this clayey gouge can be responsible for a dramatic reduction of effective stress and a full fluidization of the material. Moreover a back analysis of an existing slip surface inside the clayey core of the fault shows that this failure plane is compatible with principal stress directions locally parallel and perpendicular to the fault axis.	en
heal.publisher	JAPANESE GEOTECHNICAL SOC	en
heal.journalName	Soils and Foundations	en
dc.identifier.isi	ISI:000229796000009	en
dc.identifier.volume	45	en
dc.identifier.issue	2	en
dc.identifier.spage	97	en
dc.identifier.epage	108	en