Equations of pressuremeter curve with an elastic strain-softening plastic model

Christophe Dano (1) , Pierre-Yves Hicher (1)

1 GeM - Institut de Recherche en Génie Civil et Mécanique

We propose analytical expressions of the pressuremeter curve that generalise previous equations found in the literature. We consider a linear elastic plastic model with strain-softening, assuming a Mohr-Coulomb yield surface. The softening behaviour affects either the cohesion or the friction angle. Three parameters are required to describe the softening behaviour. We finally show the effect of each of these three parameters on the pressuremeter curve.

Domaines: Mécanique [physics.med-ph]; Matériaux

Christophe Dano, Pierre-Yves Hicher. Equations of pressuremeter curve with an elastic strain-softening plastic model. International Symposium on Numerical Models in Geomechanics, NUMOG VIII, 2002, Rome, Italy. ⟨hal-01008136⟩