Characterization of an internal slope movement structure by hydrogeophysical surveying

Herve Jomard 1 Thomas Lebourg 1 Stéphane Binet 2, 3 Emmanuel Tric 1 M. Hernandez 1
1 GEOAZUR - Géoazur
2 ISTO - Institut des Sciences de la Terre d'Orléans
3 Géosciences : Déformation, Ecoulements, Transferts
Abstract : A hydrogeophysical study was carried out by a water controlled injection within a landslide situated on an active part of the La Clapière landslide foot (Alpes Maritimes, France). Coupling of both real-time geophysical and hydrological follow ups allowed the representation and quantification of the surface water drainage in space and time within the slipped mass. Thus, 30% of the injected water is quickly drained by a complex slipping surface meanly situated at 10-m depth. The transit time between injection and outflow of the water allowed an overloading of about 10 m3 (i.e. 10 tons) comparable with classical rain events in the area. This weight and the associated interstitial pressures increase have not led to any movements asking for the origin of the water volumes which could induce destabilizations. This experiment enabled an accurate redefinition of the internal slope structure and the understanding of the dynamics of the slipped mass with a surface hydraulic request.
Type de document :
Article dans une revue
Terra Nova, Wiley-Blackwell, 2007, 19 (1), pp.48-57. 〈10.1111/j.1365-3121.2006.00712.x〉
Liste complète des métadonnées

Littérature citée [40 références]  Voir  Masquer  Télécharger
https://hal-insu.archives-ouvertes.fr/insu-00617830
Contributeur : Nathalie Pothier <>
Soumis le : mardi 30 août 2011 - 15:29:05
Dernière modification le : lundi 5 septembre 2011 - 10:49:12
Document(s) archivé(s) le : dimanche 4 décembre 2016 - 09:11:02

Fichier

TN_Jomard_05.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

IRD | INSU | UNICE | UPMC | UNIV-FCOMTE | UNIV-ORLEANS | ISTO | OCA | GEOAZUR | OSUC

Citation

Herve Jomard, Thomas Lebourg, Stéphane Binet, Emmanuel Tric, M. Hernandez. Characterization of an internal slope movement structure by hydrogeophysical surveying. Terra Nova, Wiley-Blackwell, 2007, 19 (1), pp.48-57. 〈10.1111/j.1365-3121.2006.00712.x〉. 〈insu-00617830〉

Exporter

BibTeX TEI DC DCterms EndNote
Rdf

Partager

Métriques

Consultations de
la notice

263

Téléchargements du document

175

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD