Authors: Hancock, WR; Weatherley, DK


Cite As:
Hancock, WR & Weatherley, DK 2008, '3D Simulations of Block Caving Flow Using ESyS-Particle', in Y Potvin, J Carter, A Dyskin & R Jeffrey (eds), Proceedings of the First Southern Hemisphere International Rock Mechanics Symposium, Australian Centre for Geomechanics, Perth, pp. 221-229.

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Abstract:
The ESyS-Particle discrete element implementation is examined for validity in studying block caving flows through comparison against previous numerical studies. Unbonded granular assemblies are studied using triaxial simulations as a way to quantitatively characterise macroscopic friction angles with ranging size distributions and particle properties such as stiffness and per particle microscopic frictional coefficient. These results are used as a basis for 3D quarter symmetry simulations of block caving flows. Calibration and comparisons are made against previous studies with ESyS-Particle exhibiting promising behaviour for the modelling of block caving flows. Ongoing studies will examine facets of flow such as fines migration and interactive draw in order to develop constitutive relationships and identify flow mechanisms.

References:
ADDIN EN.REFLIST Abe, S., Place, D. and Mora, P. (2004) A parallel implementation of the lattice solid model for the simulation of rock mechanics and earthquake dynamics. Pure Appl. Geophys, Vol. 161, pp. 2265–2277.
Castro, R. (2006) A study of isolated draw zones in block caving mines. Brisbane, University of Queensland.
Cundall, P. and Strack, O. (1979) A discrete numerical model for granular assemblies. Geotechnique, Vol. 29, pp. 47–65.
Julin, D. (1992) Block Caving. H. Hartman (editor) SME Mining Engineering Handbook. Littentlon, Society for Mining Metallurgy and Exploration, pp. 1815–1836.
Latham, S., Abe, S. and Davies, M. (2004) Scaling Evaluation of the Latticle Solid Model on the SGI Altix 3700. 7th International Conference on High Performance Computing and Grid in the Asia Pacific Region (HPCAsia2004), Tokyo, pp. 226–233.
Latham, S., Abe, S. and Mora, P. (2005) Macroscopic Friction Response of Rotational and Non-Rotational Lattice Solid Gouge Models in 2D and 3D. Powders and Grains Stuttgart, Germany.
Lorig, L. and Cundall, P. (2000) A rapid gravity flow simulator, Final Report, International Caving Study, E.T. Brown (editor), Brisbane, JKMRC and Itasca Consulting Group, Inc.
Mora, P. and Place, D. (1994) Simulation of the stick-slip instability. Pure Appl. Geophys, Vol. 143, pp. 61–87.
Pierce, M., Cundall, P., Van Hout, G. and Lorig, L. (2003) PFC3D Modeling of Caved Rock Under Draw. Numerical Modeling in Micromechanics via Particle Methods, H. Konietzky (editor), Proceedings 1st International PFC Symposium, November 2002, Gelsenkirchen, Germany, Balkema.
Power, G. (2004) Modelling Granular Flow in Caving Mines: Large Scale Physical Models and Full Scale Experiments. Brisbane, University of Queensland.
Wang, Y., Abe, S., Latham, S. and Mora, P. (2006) Implementation of Particle-scale Rotation in the 3-D Lattice Solid Model. Pure and Applied Geophysics, Vol. 163, pp. 1769–1785.
Wang, Y. and Mora, P. (2007) A new algorithm to model particle rotation and parameter calibration in a 3D bonded DEM model. International Conference of Discrete Element Methods. Brisbane.




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