chapter  6
18 Pages

The use of stress discontinuities in undrained plasticity calculations

If a saturated soil at failure is assumed to be deforming plastically at constant volume (i.e. without any dissipation of pore pressure), simple solutions to stability problems can often be obtained by ensuring that, at any point within the soil mass, total stress equilibrium is satisfied and the total stress failure criterion is not violated. These solutions give a lower bound on the applied loading.