Elasto-plastic analysis of the pressuremeter test in granular soil – part 2: numerical study

In the first paper, part 1, we presented the elasto-plastic theory for the expansion of the pressuremeter in granular soil. This theory allows determination of the behaviour of the granular soil around the pressuremeter with only four mechanical parameters. It is compared with previous theory on the dataset of the pressuremeter test on Ticino sand. In the second paper, part 2, we present the numerical analysis of the theoretical conventional limit pressure compared with the result of the Mohr–Coulomb non-standard model used by the Plaxis finite element program. The theoretical evolution of the conventional limit pressure as a function of the variation of each parameter shows a correct agreement with the numerical results. Conclusions are drawn on the influence of these parameters on the pressuremeter results. Dans un premier article, partie 1, nous presentons la theorie elasto-plastique de l’expansion de la sonde dans le sol granulaire. Cette theorie permet de determiner le comportement du sol granulaire ...