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dc.contributor.authorFischer, Ulrich-
dc.contributor.authorKulli Honauer, Beatrice-
dc.contributor.authorFlühler, Hannes-
dc.date.accessioned2018-10-12T08:52:54Z-
dc.date.available2018-10-12T08:52:54Z-
dc.date.issued1998-07-
dc.identifier.issn0043-1397de_CH
dc.identifier.issn1944-7973de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/11756-
dc.description.abstractMultiphase flow processes in fractured rocks are of major importance for the remediation of subsurface contamination, for engineering petroleum reservoirs, and for the safety analysis of nuclear waste repositories. We developed procedures for determining the water retention curve, gas permeability function, and pore structure of undisturbed fracture-zone samples with cohesionless fault gouge layers in the laboratory. Mylonitic samples were taken at Grimsel Test Site (Switzerland). Intrinsic permeabilities of the fault gouge layers were 5 orders of magnitude higher, and significant desaturation occurred at capillary pressure heads about 10 times lower than in the surrounding granodiorite, thus showing that at this site gas flow would take place mainly in the fracture zone. The measured water retention and gas permeability data were well represented by parametric models designed for porous media. Gas flow could only be detected at water saturations below about 0.8, thus showing strong phase interference at high water saturations. To relate these findings to the pore structure of the samples, a qualitative and quantitative description of the pore space was obtained at different scales using fluorescent resin imbibition and image analysis techniques. Results show that the fracture zone consists of a continuous and interconnected fracture network that is filled with a porous medium-like material, thus explaining the applicability of the above mentioned models and the rather strong phase interference.de_CH
dc.language.isoende_CH
dc.publisherWileyde_CH
dc.relation.ispartofWater Resources Researchde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectHydraulic conductivityde_CH
dc.subjectCrystalline rockde_CH
dc.subjectPorous mediade_CH
dc.subjectModelde_CH
dc.subject.ddc551: Geologie und Hydrologiede_CH
dc.titleConstitutive relationships and pore structure of undisturbed fracture zone samples with cohesionless fault gouge layersde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementLife Sciences und Facility Managementde_CH
zhaw.organisationalunitInstitut für Umwelt und Natürliche Ressourcen (IUNR)de_CH
dc.identifier.doi10.1029/98WR00826de_CH
zhaw.funding.euNode_CH
zhaw.issue7de_CH
zhaw.originated.zhawNode_CH
zhaw.pages.end1701de_CH
zhaw.pages.start1695de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume34de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.webfeedBodenökologiede_CH
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Fischer, U., Kulli Honauer, B., & Flühler, H. (1998). Constitutive relationships and pore structure of undisturbed fracture zone samples with cohesionless fault gouge layers. Water Resources Research, 34(7), 1695–1701. https://doi.org/10.1029/98WR00826
Fischer, U., Kulli Honauer, B. and Flühler, H. (1998) ‘Constitutive relationships and pore structure of undisturbed fracture zone samples with cohesionless fault gouge layers’, Water Resources Research, 34(7), pp. 1695–1701. Available at: https://doi.org/10.1029/98WR00826.
U. Fischer, B. Kulli Honauer, and H. Flühler, “Constitutive relationships and pore structure of undisturbed fracture zone samples with cohesionless fault gouge layers,” Water Resources Research, vol. 34, no. 7, pp. 1695–1701, Jul. 1998, doi: 10.1029/98WR00826.
FISCHER, Ulrich, Beatrice KULLI HONAUER und Hannes FLÜHLER, 1998. Constitutive relationships and pore structure of undisturbed fracture zone samples with cohesionless fault gouge layers. Water Resources Research. Juli 1998. Bd. 34, Nr. 7, S. 1695–1701. DOI 10.1029/98WR00826
Fischer, Ulrich, Beatrice Kulli Honauer, and Hannes Flühler. 1998. “Constitutive Relationships and Pore Structure of Undisturbed Fracture Zone Samples with Cohesionless Fault Gouge Layers.” Water Resources Research 34 (7): 1695–1701. https://doi.org/10.1029/98WR00826.
Fischer, Ulrich, et al. “Constitutive Relationships and Pore Structure of Undisturbed Fracture Zone Samples with Cohesionless Fault Gouge Layers.” Water Resources Research, vol. 34, no. 7, July 1998, pp. 1695–701, https://doi.org/10.1029/98WR00826.


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