Non-linear analysis of the behaviour of buried structures in random media

In this study, a review of various research works dealing with the numerical modelling of soil-structure interaction problems is presented. Numerical models have been illustrated to show the performance of techniques used for resolving soil-pipe interaction problems by considering the non-linear and random aspects of soil. Non-linear analysis has been carried out by using an elasto-perfectly plastic model where soil geo-mechanical characteristics have been determined by means of a probabilistic approach Monte Carlo method to quantify the influence of the spatial variability of soil geo-mechanical characteristics on the longitudinal responses of a part of sewer. Numerical illustrations are based on the combination of the soil non-linearities and the probabilistic determination of its geo-mechanical properties which can allow us to describe the mechanical behaviour of buried structures in dispersed environments at the stage where the complexity of soil-structure interaction problem is relatively more pronounced.