Fig. 3
Effet barrage dans la foliation – Analyse de stabilité aux états limites – Résultante des pressions appliquées. Processus explicité par Londe et Louis en 1964 (Londe, 1966).
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Mécanisme de rupture de la fonction rive gauche du Barrage de Malpasset : la poussée du barrage a comprimé et étanché les gneiss, d’où la formation d’un « barrage souterrain » qui n’a pas résisté aux sous-pressions hydrauliques agissant sur sa face amont.
Dam-affect in the foliation – Pressure effect on the foliation according to Londe and Louis, 1964 (Londe, 1966).
Breaking mechanism of the foundation on the left bank of the Malpasset dam: the thrust of the dam compressed and sealed the gneisses, hence the formation of an “underground dam” which could not withstand the hydraulic uplifts acting on its upstream face.
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