Authors: Esterhuizen, HCJ; Slade, N; Sloane, JL


Cite As:
Esterhuizen, HCJ, Slade, N & Sloane, JL 2008, 'Rock Mechanics Practices and Experiences at Xstrata Mount Isa Copper Operations', 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. 201-218.

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Abstract:
The underground mining environment at Mount Isa Copper Operations (MICO) has over the years presented interesting and challenging rock mechanics related issues. Within the same orebody there can be vast differences in how the rock mass behaves. Factors such as rock type, composition, geological structures, support quality and induced stress changes from past and current mining can have a significant influence on how the overall rock mass will behave. Recently there have been several examples highlighting the influence of these on the rock mass. In order to control rock mass behaviour, good quality support is important. Over the years there have been numerous examples of support testing and support improvements at Mount Isa Mines. More recently additional work was done on cable bolts and corrosion of ground support.

References:
Foster, D.R.W., Rubenach, M.J. and Oliver, N.H.S. (2007) Distribution, Formation, and effective measurement of Talc in the N3500 Mount Isa Orebody.
Mosse-Robinson, S. (2007) Laboratory experiments to quantify the pull out strength of cable bolts, Thesis, The University of New South Wales, 2007.
Tarrant, G. and Lee, M. (1984) Mount Isa Rock Properties.
Tyler, D. (1999) Cause and rates of corrosion in ground reinforcement elements – Mount Isa and Hilton mine leases.
Villaescusa, E., Hassel, R. and Thompson, A. (2007) Corrosion of Rock Reinforcement in Underground Excavations, MERIWA Report No. 263, Project No. M333.




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