Earthquake induced liquefaction has caused extensively damage to various cities and one of the most notable one is the damage caused to Christchurch on 22nd February 2011. Liquefaction occurs because of the interaction between the soil particles and its pore fluid. The seminar will describe the cause of liquefaction and the typical damage it causes. Then the mathematical model, Biot formulation, governing the saturated soil and pore fluid interaction will be given together with the stress-strain relationship used in modelling the material behaviour.
Besides earthquake induced liquefaction, wave-induced liquefaction at the seabed can also be analysed using the same formulation. This can have a major effect on the stability of offshore foundations. Results of some of the numerical examples obtained will also be presented.
Andrew Chan joined the University of Ballarat in February 2013 to take up the position of Professor of Civil Engineering and Deputy Dean, Information Technology and Engineering in the School of Science, Information Technology and Engineering. He completed his PhD at the University of Wales, Swansea. He has spent time working as a Postdoctoral Research Assistant at Cambridge University, and has lectured in the Department of Civil Engineering at the University of Glasgow and was Reader in Computational Engineering at University of Birmingham.
Professor Chan has a wide research interest. He is one of the world leading experts in the use of the finite element method of static and dynamic fully coupled soil and pore-fluid interaction and the author of two comprehensive Finite Element packages for deformable porous media and pore fluid interaction.
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