Authors: Karampinos, E; Hadjigeorgiou, J; Turcotte, P; Drolet, M-M; Mercier-Langevin, F

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Karampinos, E, Hadjigeorgiou, J, Turcotte, P, Drolet, M-M & Mercier-Langevin, F 2014, 'Empirical and numerical investigation on the behaviour of foliated rock masses under high stress conditions', in M Hudyma & Y Potvin (eds), Proceedings of the Seventh International Conference on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 345-361.

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Abstract:
A large number of underground hard rock mines report squeezing ground conditions. The resulting deformation is often associated with the presence of foliation and high stress conditions. In order to maintain the operational integrity of excavations in squeezing ground conditions, it may be necessary to make major investments in support, and extensive rehabilitation work. This paper presents the results of field observations and numerical modelling investigations in understanding the mechanisms and parameters that control squeezing in foliated ground. A methodology for modelling such conditions using the distinct element program 3DEC is presented. The proposed technique reproduced the observed buckling mechanism and has addressed the influence of foliation and fractures within the rock mass. The results of the numerical models are reviewed with reference to the observed squeezing mechanism and deformation levels observed in the LaRonde and Lapa mines of Agnico Eagle in Canada.

References:
Armatys, M 2012, ‘Modification des classifications géomécaniques pour les massifs rocheux schisteux’, Masters thesis, École Polytechnique de Montréal, Montreal.
Aydan, O, Akagi, T & Kawamoto, T 1993, ‘The squeezing potential of rocks around tunnels: Theory and prediction’, Rock Mechanics and Rock Engineering, vol. 26, no. 2, pp. 137-163.
Barla, G, Bonini, M & Debernardi, D 2007, ‘Modelling of tunnels in squeezing rock’, Proceedings of the 3rd Iranian Rock Mechanics Conference, Iranian Society for Rock Mechanics, Tehran, pp. 1267-1285.
Beck, DA & Sandy, MP 2003, ‘Mine Sequencing for high recovery in Western Australian mines’, Proceedings of the 12th International Symposium on Mine Planning and Equipment Selection, Australasian Institute of Mining and Metallurgy, Carlton, pp. 137-144.
Coggan, J, Gao, F, Stead, D & Elmo, D 2012, ‘Numerical modelling of the effects of weak immediate roof lithology on coal mine roadway stability’, International Journal of Coal Geology, vol. 90-91, pp. 100-109.
Dubuc, R, Bédard, N, Mercier-Langevin, F, Cousin, P, Côté, J, & Archambault, M 2011, Technical Report on the Lapa Gold Project.
Hoek, E 2001, ‘Big tunnels in bad rock’, ASCE Journal of Geotechnical and Geoenvironmental Engineering, vol. 127, no. 9, pp. 726-740.
Itasca Consulting Group, Inc. 2000, ‘FLAC3D: Fast Analysis of Continua in 3 Dimensions’, Itasca Consulting Group, Inc., Minneapolis,
Itasca Consulting Group, Inc. 2007, ‘3DEC: Three-Dimensional Distinct Element Code’, version 4.10.135, Itasca Consulting Group, Inc., Minneapolis,
Itasca Consulting Group, Inc. 2011, ‘UDEC: Universal Distinct Element Code’, Itasca Consulting Group, Inc., Minneapolis,
Itasca Consulting Group, Inc. 2013, ‘3DEC: Three-Dimensional Distinct Element Code’, version 5.00.164, Itasca Consulting Group, Inc., Minneapolis,
Kazakidis, VN 2002, ‘Confinement effects and energy balance analyses for buckling failure under eccentric loading conditions’, Rock Mechanics and Rock Engineering, vol. 35, no. 2, pp. 115-126.
Lin, Y, Hong, Y, Zheng, S & Zhang, Y 1984, ‘Failure modes of openings in a steeply bedded rock mass’, Rock Mechanics and Rock Engineering, 17, vol. 113-119.
Mellies, G 2009, ‘Two case studies of excavations in fractured rock’, MASc thesis, Université Laval, Quebec.
Mercier-Langevin, F & Turcotte, P 2007, ‘Expansion at depth at Agnico Eagle’s LaRonde Division – meeting geotechnical challenges without compromising production objectives’, in Y Potvin, J Hadjigeorgiou & D Stacey (eds), Challenges in Deep and High Stress Mining, Perth, Australian Centre for Geomechanics, pp. 189-195.
Mercier-Langevin, F & Hadjigeorgiou, J 2011, ‘Towards a better understanding of squeezing potential in hard rock mines’, Transactions of the Institution of Mining and Metallurgy, Section A: Mining Technology, vol. 120, no. 1, pp. 36-44.
Potvin, Y & Slade, N 2007, ‘Controlling extreme ground deformation – learning from four Australian case studies’, in Y Potvin, J Hadjigeorgiou & D Stacey (eds), Challenges in Deep and High Stress Mining, Perth, Australian Centre for Geomechanics, pp. 355-361.
Potvin, Y & Hadjigeorgiou, J 2008, ‘Ground support strategies to control large deformations in mining excavations’, Journal of the South African Institute of Mining and Metallurgy, vol. 108, no. 7, pp. 393-400.
Rocscience inc. 2005, ‘Phase2: Finite Element Analysis for Excavations and Slopes’, Rocscience inc., Toronto,
Sandy, MP, Gibson, W & Gaudreau, D 2007, ‘Canadian and Australian ground support practices in high deformation environments’, in Y Potvin (ed.), Proceedings of the Fourth International Seminar on Deep and High Stress Mining, Perth, Australian Centre for Geomechanics, pp. 297-311.
Sandy, MP, Sharrock, G & Vakili, A 2010, ‘Managing the Transition from Low Stress to High Stress Conditions’, in PC Hagan & S Saydam (eds), Proceedings of the Second Australasian Ground Control In Mining Conference, Australasian Institute of Mining and Metallurgy, Carlton, on CD-ROM.
Struthers, MA, Turner, MH, McNabb, K & Jenkins, PA 2000, ‘Rock mechanics design and practice for squeezing ground and high stress conditions at Perseverance mine’, in G Chitombo (ed.), Proceedings MassMin 2000, Australasian Institute of Mining and Metallurgy, Carlton, pp. 755–764.
Turcotte, P 2010, ‘Field behaviour of hybrid bolt at LaRonde Mine’, in M Van Sint Jan & Y Potvin (eds), Proceedings of the Fifth International Seminar on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 309-319.
Vakili, A, Sandy, MP & Albrecht, J 2012, ‘Interpretation of non-linear numerical models in geomechanics – a case study in the application of numerical modelling for raise bored shaft design in a highly stressed and foliated rock mass’, Proceedings of the 6th International Conference and Exhibition on Mass Mining: MassMin 2012, Canadian Institute of Mining, Metallurgy and Petroleum, Westmount, on CD-ROM.
Vakili, A, Sandy, MP, Mathews, M & Rodda, B 2013, ‘Ground support design under high stressed conditions’, in Y Potvin & B Brady (eds), Proceedings of the Seventh International Symposium on Ground Support in Mining and Underground Construction, Australian Centre for Geomechanics, Perth, pp. 551-564.




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