Parameter identification for a suction-dependent plasticity model

In this paper, the deterministic parameter identification procedure propose d in a companion paper is applied to suction-dependent elasto-plasticity pr oblems. A mathematical model for such type of problems is firstly presented , then it is applied to the parameter identification using laboratory data. The identification procedure is applied in a second example to exploitatio n of a gas reservoir. The effects of the extraction of underground fluids a ppear during and after quite long periods of time and strongly condition th e decision to profit or not of the natural resources. Identification proced ures can be very useful tools for reliable long-term predictions. Copyright (C) 2001 John Wiley & Sons, Ltd.