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

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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


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