Localisation et quantification des zones de fuites dans les digues et les barrages par la méthode du potentiel spontané

Abstract : The self-potential method is (to the exception of temperature) the only geophysical method that is directly sensitive to the flow of the ground water. The flow of ground water produces indeed an electrical field which can be detected at the ground surface. The goal of this work is to show the usefulness of this method to detect and quantify seepage velocities in dams and embankments. The simplicity of implementation of the self-potential method allows fast investigation and direct diagnostic of leakage. This work applies this approach to dams and embankments. In the present work, we have developed the physics of the relationship between self-potential signals and ground water flow, forward numerical modeling with Comsol multiphysics 3.3 and inverse modeling with a truncated SVD approach. We use this modeling to estimate the flow rate on earth dam by coupling self-potential data and resistivity information. In addition, we automatized the treatment of the self-potential data to develop the self-potential methods along embankment dams.
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https://tel.archives-ouvertes.fr/tel-00381930
Contributor : Alexandre Boleve <>
Submitted on : Wednesday, May 6, 2009 - 5:14:06 PM
Last modification on : Friday, April 5, 2019 - 8:06:31 PM
Document(s) archivé(s) le : Thursday, June 10, 2010 - 9:03:59 PM

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  • HAL Id : tel-00381930, version 1

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Alexandre Boleve. Localisation et quantification des zones de fuites dans les digues et les barrages par la méthode du potentiel spontané. Géophysique [physics.geo-ph]. Université de Savoie, 2009. Français. ⟨tel-00381930⟩

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