A review of the interaction between the surface and deep elements of ground support leading to design guidelines of a holistic ground support approach in mining

Authors: Charette, F; Mainville-Beach, L

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DOI https://doi.org/10.36487/ACG_repo/2465_25

Cite As:
Charette, F & Mainville-Beach, L 2024, 'A review of the interaction between the surface and deep elements of ground support leading to design guidelines of a holistic ground support approach in mining', in P Andrieux & D Cumming-Potvin (eds), Deep Mining 2024: Proceedings of the 10th International Conference on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 457-466, https://doi.org/10.36487/ACG_repo/2465_25

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Abstract:
Ground support systems consist of surface support that contacts the excavation boundary and a reinforcement system that is embedded into the rock mass. The demand on the components depends on the expected loading conditions from the ground and the type of excavation, being of construction or civil type or rather of mining extraction. The application of ground support materials and methodology is often adapted to meet technical requirements and economics, but this marriage of reason sometimes leads to lessthan-optimal configurations. A review of the combination of existing bolts and accessories from the industry suggested that some design considerations seemed to be overlooked. This paper presents the results of an investigation into the overall behaviour of combined bolt and bearing plate elements and the design process that can lead to an optimal support system that is able to handle various loading types from quasi-static to dynamic events. Practical engineering considerations, as well as past and new laboratory data, are presented and discussed. Based on several years of laboratory testing and field applications, the data explores the choice of accessories with various bolt types and strengths, offering a simple approach to quantify the parameters to properly design the ground support system.

Keywords: plates, ground support, system, rebars

References:
ASTM International 2019, Standard Specifications for Roof and Rock Bolts and Accessories F432-19, West Conshohocken.
Charette, FC, Hyett, AJ, Voyzelle, B & Anderson, T 2014, ‘Load-deformation behaviour of a deformable rockbolt and accessories under dynamic loading’, in M Hudyma & Y Potvin (eds), Deep Mining 2014: Proceedings of the Seventh International Conference on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 253–262,
Charette, F & Bennett, A 2017, ‘The importance of the face plate as part of an engineered holistic ground support scheme in dynamic conditions’, in J Wesseloo (ed.), Deep Mining 2017: Proceedings of the Eighth International Conference on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 709–722,
Louchnikov, V, Sandy, MP, Watson, O, Orunesu, M & Eremenko, V 2014, ‘An overview of surface rock support for deformable ground conditions’, 12th Underground Operators Conference, Australasian Institute of Mining and Metallurgy, Melbourne.
Ortlepp, WD 2001, ‘Performance testing of dynamic stope support at Savuka test facility’, SIMRAC GAP Report 611.
Ortlepp, WD, Stacey, TR & Kirsten, HAD 2018, ‘Containment support for large static and dynamic deformations in mines’, Rock Support and Reinforcement Practice in Mining, Routledge, Milton Park, pp. 359–364.
Ortlepp, WD & Stacey, TR 1997, 'Testing of tunnel support: dynamic load testing of rock support containment systems’, SIMRAC GAP Project 221.
Ortlepp, WD & Stacey, TR 1997, ‘Testing of tunnel support: dynamic load testing of rockbolt elements to provide data for safer support design’, SIMRAC GAP Project 423.
Thomas, S 2015, ‘Resin bolt projectile failures’, EAGCG Stress and Seismicity Workshop, Launceston.
Thompson, AG & Villaescusa, E 2014, ‘Case studies of rock reinforcement components and systems testing’, Rock Mechanics and Rock Engineering, vol. 47, issue 5.




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