News

Expert in liquefaction comes to Sydney


25 January 2007

Prof Andrew Chan
Prof Andrew Chan

Professor Andrew Chan is Professor of Computational Engineering at The University of Birmingham.

A USyd International Visiting Research Fellowship has been awarded to Prof Chan to work with A/Prof Dong-Sheng Jeng on the topic 'An integrated model for wave-induced progressive liquefaction in a porous seabed'.

Research activities in coastal environments are particularly important for countries like Australia where 86% of the population is concentrated in coastal regions. The behaviour of marine sediments is of great interest to coastal engineers in assessing the consequences of liquefaction. A primary consequence is the possible loss of supporting power of the seabed soil, causing stability problems for offshore pipelines and composite breakwaters. This increased interest in liquefaction phenomena calls for a rational framework to model the fluidised process.

An example of buildings affected by soil liquefaction
An example of buildings affected by soil liquefaction

Prof Chan's group at Birmingham has established a well-known soil model for the wave-induced liquefaction potential, which has been used in EU committee. Dr. Jeng’s group at USyd has been strong in wave modeling and wave-soil interaction. The proposed collaboration is only the preliminary stage, which integrated the models developed by each group. The long-term targets of this collaboration will be the establishment of a fully coupled model for the wave-seabed-structure interaction problem. This international collaboration will help both group establish leadership in the discipline.

Prof Chan will visit Civil Engineering at Sydney for two six week periods in March/April, and June/July 2007.