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Fig. 2

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Illustration d’un essai d’érosion de contact à l’échelle de l’échantillon entre un gravier (en partie basse) et un limon cohésif (en partie haute). L’écoulement arrive de la droite à une vitesse de Darcy d’environ 10−2 m/s dans la couche de gravier.

Illustration of a sample-scale contact erosion test between a gravel (at the bottom) and a cohesive silt (at the top). The flow comes from the right at Darcy flow rate around 10−2 m/s in the gravel layer.

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