Australian Research Council Centre of Excellence Geotechnical Science and Engineering

Mr Hamid Tohidifar


BSc, MSc


  • 2009
    Master of Science in Geotechnical Engineering (1st Class Honours, 1st Rank) – Isfahan University of Technology, Iran.
  • 2005
    Bachelor of Science in Civil Engineering (1st Class Honours, 1st Rank) – Azad University of Mashhad, Iran.


  • 2009
    MAHARAB Geotechnical and DAM Consulting Engineers, Senior Geotechnical Engineer, Mashhad, Iran, 2 Years.
  • 2008
    JahdAzma Geotechnical Consulting Engineers Company, Geotechnical Engineer & Soil Mechanics Lab Expert, Mashhad, Iran, 1 Year.
  • 2007
    RAYAB Consulting Engineers Company, Civil Engineer, Isfahan, Iran, 1 Year.

Research Interests

  • Soil Plasticity and Constitutive Modelling of Geomaterials
  • DEM, FEM and FDM in Geotechnical Engineering
  • Computer Aided Engineering and Programming
  • Particle Crushing in Granular Media
  • In-situ and Laboratory Testing of Soils
  • Soil Behavior under Static and Dynamic Loading
  • Reinforced Soil Engineering
  • Embankment Dams Analysis and Design
  • Instrumentation and Monitoring of Dams


  • Professor Buddhima Indraratna
  • Professor Song-Ping Zhu

Research Topic

Effect of High Speed Train Frequencies on the Degredation of Rail Ballast Upon Cyclic Densification

Research Abstract

The aim of this project is to investigate the effect of high frequencies cyclic loading on the breakage and crushing of granular materials (ballast) in railway engineering. An elastoplastic constitutive model based on laboratory tests on ballast would be developed and implemented to well known FEM or FDM software programs for future commercial usage. Besides, the crushing of ballast under various physical conditions would be investigated by modeling in three dimensional Discrete Element Method.