ARC Centre of Excellence Geotechnical Science & Engineering

Moving Boundary Problems

Current best-practice in geotechnical design is focused on stationary systems and constant material properties, and aims to attain negligible movement under working loads. However, many new infrastructure applications require an entirely new design paradigm which allows the geostructure to move large distances during its design life. Important examples of this include submarine pipelines on soft sediments, the dynamic installation of anchors in seabeds, the installation of displacement piles, the use of penetrometers to measure the geotechnical properties of soils, and foundations on soft clays.

Key innovations in this Program include new analysis techniques that account for large deformations, soil-fluid-structure interaction, episodes of cyclic loading (and intervening recovery) and complicated interface behaviour. All three nodes in the CGSE have strong backgrounds in modelling complex boundary value problems, and are contributong to the development of novel techniques to simulate these phenomena. Moreover, the predictions from the advanced computational models will be compared against real behaviour observed in state-of-the-art physical modelling and field testing.