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<title lang=en>Tilt and strain deformation induced by hydrologically active natural fractures: application to the tiltmeters installed in Sainte-Croix-aux-Mines observatory (France)</title>
<creator>Longuevergne, Laurent</creator>
<creator>Florsch, Nicolas</creator>
<creator>Boudin, Frédéric</creator>
<creator>Oudin, Ludovic</creator>
<creator>Camerlynck, Christian</creator>
<contributor>Structure et fonctionnement des systèmes hydriques continentaux (SISYPHE) ; Université Pierre et Marie Curie - Paris 6 (UPMC) - École pratique des hautes études (EPHE) - MINES ParisTech - École nationale supérieure des mines de Paris - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Unité de modélisation mathématique et informatique des systèmes complexes [Bondy] (UMMISCO) ; Université Pierre et Marie Curie - Paris 6 (UPMC) - Institut de la francophonie pour l'informatique - Université Cheikh Anta Diop (UCAD) - Université Gaston Bergé (Saint-Louis, Sénégal) - Universtié Yaoundé 1 (Cameroun) - University Cadi Ayyad (UCA)</contributor>
<contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>ISSN: 0956-540X</source>
<source>EISSN: 1365-246X</source>
<source>Geophysical Journal International</source>
<publisher>Oxford University Press (OUP)</publisher>
<identifier>hal-00708093</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00708093</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00708093/document</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00708093/file/fracture_v72.pdf</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00708093</source>
<source>Geophysical Journal International, Oxford University Press (OUP), 2009, 178, pp.667-677. 〈10.1111/J.1365-246X.2009.04197.X〉</source>
<identifier>BIBCODE : 2009GeoJI.178..667L</identifier>
<identifier>DOI : 10.1111/J.1365-246X.2009.04197.X</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1111/J.1365-246X.2009.04197.X</relation>
<language>en</language>
<subject lang=en>Transient deformation</subject>
<subject lang=en>Hydrogeophysics</subject>
<subject lang=en>Hydrology</subject>
<subject lang=en>Continental neotectonics</subject>
<subject lang=en>Fracture and faults</subject>
<subject lang=en>Mechanics</subject>
<subject lang=en>theory</subject>
<subject lang=en>and modelling</subject>
<subject>[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces, environment</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>We investigate the deformation induced by water pressure variations in hydrologically active natural fractures, and recorded by tiltmeters and strainmeters. The deformation associated with a single fracture is derived using finite-element modelling (FEM). A range in fracture geometries is explored, first to highlight the sensitivity of each geometrical parameter to the deformation, and secondly to allow transfer to observation sites. Water level variations in the fracture are then derived from a hydrological model, driven by observed rainfall, and calibrated on fracture water flow measurements. The modelling results are explicitly applied to constrain the local hydrological contribution to observations with the 100-m-long hydrostatic tiltmeter installed at Sainte-Croix-aux-Mines (France). Our study shows that well-founded physical modelling of local hydrological effect allows a substantial correction of records in observatories.</description>
<date>2009-08</date>
</dc>
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