Comportement mécanique de la marne grise. Essais triaxiaux drainés à chemins radiaux et cisaillement non drainé à haute pression CU HP. Plans des contraintes effectives (p, q). a) Sondage vertical. b) Sondage horizontal.

Mechanical behaviour of grey marl. Radial controlled stress path loading and undrained shearing at high pressure CU HP. Effective stress plane (p, q). a) Vertical borehole. b) Horizontal borehole.