Australian Research Council Centre of Excellence Geotechnical Science and Engineering

Mrs Nayoma Tennakoon


B.Sc. Eng (Hons)


  • Bachelor of Science in Civil Engineering at University of Peradeniya, Sri Lanka


  • 2009
    Part-time Academic Teaching, University of Wollongong, NSW 2500, 3 years
  • 2007
    Structural Design Engineer, STEMS Consultants (PTE) Ltd, Sri Lanka, 1.5 years
  • 2006
    International Construction Consortium (Pvt) Ltd, Colombo, Sri Lanka, 3months internship
  • 2004
    North Central Province Engineering Department, Sri Lanka, 3months internship

Research Interests

  • Finite Element Modelling
  • Constitutive Modelling
  • Geotechnical aspects of rail tracks


  • Professor Buddhima Indraratna
  • Dr Cholachat Rujikiatkamjorn
  • Dr Martin Liu
  • Dr Sanjay Nimbalkar

Research Topic

Geotechnical Study of Engineering Behaviour of Fouled Ballast

Research Abstract

This project addresses the effects of ballast fouling on drainage, shear strength and deformation characteristics through laboratory investigations using unique large-scale equipment’s designed and built at the University of Wollongong. New design guidelines are introduced for track maintenance. Also, a constitutive model for clay fouled ballast is proposed using framework of bounding surface plasticity.