student profile: Mrs Saba Gharehdash


Map

Thesis work

Thesis title: Modelling of rock blasting using coupled finite element and smoothed particle hydrodynamics method

Supervisors: Luming SHEN , Yixiang GAN

Thesis abstract:

 By far the most prevalent technique of rock excavation is that of drilling and blasting. The main objective of rock blasting is to fragment the rock and displace it in a cost-effective manner. For example, handling of large blocks created during blasting is associated with significant increases in costs and managing of too small fragments is another vicissitude in mining and subsequent processing operations. In underground applications, success of blasting operations results in lower reinforcement costs and leads to the application of more economic excavation techniques (Lu et al, 2013).  To date an extensive work published on the damage and fragmentation of rock under blast loading which can be divided into the different categories, for example, theoretical approaches, experimental works and numerical methods. The goal of this research project is to develop a numerical-validated method for rock under dynamic loading. The goal will be achieved through the following objectives: To simulate a wide range of scenarios in rock blasting using coupled FEM-SPH method that can, in turn, be compared with the available experimental results.To develop FEM-SPH model for predicting fragmentation of rock materials under blast loading. The model should be able to estimate the fragment distribution and fragment size generated by crack coalescence in the dynamic fragmentation process.

Selected publications

Download citations: PDF RTF Endnote

Conferences

  • Gharehdash, S., Shen, L., Gan, Y., Flores-Johnson, E. (2016). Numerical investigation on fracturing of rock under blast using coupled finite element method and smoothed particle hydrodynamics. The 2nd Australasian Conference on Computational Mechanics (ACCM 2015), Switzerland: Trans Tech Publications. [More Information]

2016

  • Gharehdash, S., Shen, L., Gan, Y., Flores-Johnson, E. (2016). Numerical investigation on fracturing of rock under blast using coupled finite element method and smoothed particle hydrodynamics. The 2nd Australasian Conference on Computational Mechanics (ACCM 2015), Switzerland: Trans Tech Publications. [More Information]

Note: This profile is for a student at the University of Sydney. Views presented here are not necessarily those of the University.