Fig. 10

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Exemple de campagne de tomographie électrique 2D. Modèles de résistivités inversées suivant trois configurations (Wenner, Wenner-Schlumberger et dipôle-dipôle) obtenues sur le radier béton de la galerie EST03 du site de Tournemire (EDZ : zone endommagée ; F : position d’une fracture d’origine tectonique observée sur le radier). Les lignes en pointillés indiquent la position de l’interface béton–zone endommagée (Okay, 2011).
Example of 2D electrical resistivity tomography. Models of inverted resistivity following three arrays (Wenner, Wenner-Schlumberger et dipôle-dipôle) obtained on the concrete floor of the EST03 gallery at the Tournemire site (EDZ: excavated damaged zone; F: location of tectonic fault observed on the floor). The dotted lines indicate the location of the concrete/EDZ interface (Okay, 2011).
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