Australian Research Council Centre of Excellence Geotechnical Science and Engineering

Dr Udeshini Pathirage


BSc (Eng), PhD


  • 2014
    PhD, University of Wollongong, Australia
  • 2009
    Bachelor of Science in Earth Resources Engineering at University of Moratuwa, Sri Lanka


  • 2009
    Geotechnical Engineer, Geological Survey and Mines Bureau, Sri Lanka, 6 months
  • 2007
    Undergraduate Trainee, Geoinformatics Centre, Asian Institute of Technology, Thailand, 6 months

Research Interests

  • Acid sulphate soil
  • Permeable reactive barrier (PRB)
  • Groundwater flow modelling
  • Chemical and physical clogging


  • Professor Buddhima Indraratna
  • Associate Professor Long Nghiem
  • Dr Laura Banasiak

Research Topic

Modeling of clogging in the permeable reactive barrier in acid sulfate soil terrain

Research Abstract

The key challenge of this study is to develop a model that captures complex geochemical reaction kinetics coupled with transient groundwater flows, supported by detailed laboratory testing and field monitoring for evaluating the longevity of the PRB.