Thermo-poro-mechanical properties of clayey gouge and application to rapid fault shearing

Sulem, J; Lazar, P; Vardoulakis, I

dc.contributor.author	Sulem, J	en
dc.contributor.author	Lazar, P	en
dc.contributor.author	Vardoulakis, I	en
dc.date.accessioned	2014-03-01T01:27:28Z
dc.date.available	2014-03-01T01:27:28Z
dc.date.issued	2007	en
dc.identifier.issn	0363-9061	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18463
dc.subject	Clayey gouge	en
dc.subject	Fault	en
dc.subject	Seismic slip	en
dc.subject	Thermo-poro-mechanical couplings	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Mechanics	en
dc.subject.other	Fluidization	en
dc.subject.other	Pore pressure	en
dc.subject.other	Porosity	en
dc.subject.other	Stresses	en
dc.subject.other	Vaporization	en
dc.subject.other	Clayey gouge	en
dc.subject.other	Fault pressurization	en
dc.subject.other	Pore-fluid vaporization	en
dc.subject.other	Seismic slip	en
dc.subject.other	Thermo-poro-mechanical couplings	en
dc.subject.other	Soil mechanics	en
dc.subject.other	Fluidization	en
dc.subject.other	Pore pressure	en
dc.subject.other	Porosity	en
dc.subject.other	Soil mechanics	en
dc.subject.other	Stresses	en
dc.subject.other	Vaporization	en
dc.subject.other	clay	en
dc.subject.other	fault gouge	en
dc.subject.other	fluidization	en
dc.subject.other	pore pressure	en
dc.subject.other	shear	en
dc.subject.other	slip	en
dc.subject.other	Gulf of Corinth	en
dc.subject.other	Ionian Sea	en
dc.subject.other	Mediterranean Sea	en
dc.title	Thermo-poro-mechanical properties of clayey gouge and application to rapid fault shearing	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/nag.584	en
heal.identifier.secondary	http://dx.doi.org/10.1002/nag.584	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	In this paper, the mechanism of fault pressurization in rapid slip events is analysed on the basis of a complete characterization of the thermo-poro-mechanical behaviour 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. The thickness of the 'ultra-localized' zone of highly strained material is a key parameter that controls the competing phenomena of pore pressure increase leading to fluidization of the fault gouge and temperature increase leading to pore-fluid vapourization. Copyright (c) 2006 John Wiley & Sons, Ltd.	en
heal.publisher	JOHN WILEY & SONS LTD	en
heal.journalName	International Journal for Numerical and Analytical Methods in Geomechanics	en
dc.identifier.doi	10.1002/nag.584	en
dc.identifier.isi	ISI:000245332800008	en
dc.identifier.volume	31	en
dc.identifier.issue	3	en
dc.identifier.spage	523	en
dc.identifier.epage	540	en