ARC Centre of Excellence Geotechnical Science & Engineering

RHD Students

Wuditha Premadasa

RHD Students


Bsc Eng (Hons)


  • Bachelor of Science in Mining and Minerals Engineering at the University of Moratuwa, Sri Lanka


  • 2008
    Road Development Authority, Sri Lanka – Attached to Southern transport development project (STDP), Fist expressway in Sri Lanka. 1 year
  • 2007
    Academic Instructor – Dep. of Earth Resources Engineering, University of Moratuwa, Sri Lanka, 3 months

Research Interests

  • Jointed rock engineering
  • Unsaturated soil


  • Professor Buddhima Indraratna
  • Dr Jan Nemcik

Research Topic

Shear Behaviour of Infilled Rock Joints in Relation to Unsaturated Infill Conditions

Research Abstract

This project involves extending the current understanding of Shear strength of infill rock joints by considering the effect of partial saturation of the infill. It consists of laboratory testing of artificial and natural rock joints with partial saturation of infill and developing a mathematical model to predict shear behavior.