Fig. 6

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a : Analyse de la dispersion des ondes de surface. Identification du mode fondamental et du premier mode supérieur à partir d’un diagramme de dispersion expérimental obtenu sur le site de Tournemire ; b : modèle de vitesse d’onde S issu de l’inversion. Les épaisseurs du radier béton et de la zone endommagée sont indiquées (modifié de Leparoux et al., 2012).
a: Multichanel Analysis of Surface Waves method. Identification of the fundamental mode and the first higher mode from an experimental dispersion diagram acquired at the Tournemire site; b: model of S-wave velocity obtained from inversion. The thicknesses of the concrete layer and the damaged zone are indicated (modified from Leparoux et al., 2012).
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