Authors: Di Ciolli, M; Campbell, R; Taylor, K; Primadiansyah, A; Kaiser, PK

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DOI https://doi.org/10.36487/ACG_repo/2205_13

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Di Ciolli, M, Campbell, R, Taylor, K, Primadiansyah, A & Kaiser, PK 2022, 'Practical application of deformation-based support design', in Y Potvin (ed.), Caving 2022: Fifth International Conference on Block and Sublevel Caving, Australian Centre for Geomechanics, Perth, pp. 213-226, https://doi.org/10.36487/ACG_repo/2205_13

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Abstract:
Panel cave mines at PT Freeport Indonesia experience damaging strainburst events due to high cavinginduced stress and brittle rock mass conditions. Traditional energy-based support design principles did not provide an appropriate ground support design to manage the strainburst hazard in the mining environment. While field fitting of gabion-based support systems was successfully developed, a clear design basis was lacking. To address this gap, a deformation-based support design methodology was defined, which has proven more effective at informing support strategy under these challenging conditions. This operational change in methodology necessitated an update of the ground support design basis and supporting tools. Three significant updates to the existing load-based and energy-based design philosophy were required: 1) determine a support system capacity from individual support elements, 2) include displacement-based demand calculations in the strainburst support assessment, and 3) estimate the service life of the support system based on the anticipated loading path. Experience around the development and validation of a deformation-based support design workflow as well as challenges of implementing deformation-based support design at scale are described.

Keywords: ground support, deformation-based support design, strainburst

References:
Cai, M & Kaiser, PK, 2018, Rockburst phenomena and support characteristics. Rockburst Support Reference Book, I. Laurentian University, Sudbury, p. 128.
Diederichs, MS & Martin, CD 2010, ‘Measurement of spalling parameters from laboratory testing’, Proceedings at European Rock Mechanics Symposium, CRC Press, London, pp. 323–326.
Kaiser, PK, McCreath, DR, & Tannant, DD 1996, Canadian Rockburst Support Handbook, Geomechanics Research Centre/MIRARCO Publishing, Sudbury.
Kaiser, PK, Diederichs, MS, Martin, CD, Sharp, J & Steiner, W 2000, ‘Underground works in Hard Rock Tunneling and Mining’, Proceedings from GeoEng an International Conference on Geotechnical and Geological Engineering, Melbourne, Australia, Volume 1, pp. 841–926.
Kaiser, PK & Moss, A 2021, ‘Deformation-based support design for highly stressed ground with a focus on rockburst damage mitigation’, Journal of Rock Mechanics and Geotechnical Engineering.
Laubscher, D 1990, Geomechanics Classification System for the Rating of Rock Mass in Mine Design. J. S. Afr. Inst. Min. Metall, vol. 90, no. 10, pp. 257–273.
Morissette, P, Hadjigeorgiou, J, Thibodeau, D, & Potvin, Y 2012, ‘Validating a support performance database based on passive monitoring data’, Proceedings of the 6th International Seminar on Deep and High Stress Mining, pp. 41–55.
Moss, A, & Kaiser, PK, 2021, ‘An operational approach to ground control in deep mines’, Journal of Rock Mechanics and Geotechnical Engineering, .
Napitupulu, N, Ali, M, Satriawan, E & Munandar, A 2022, ‘Preventive Support Maintenance (PSM) as a mitigation of rockburst hazard: a case study for the Deep Mill Level Zone mine’, Proceedings from RaSiM10 2022, Tucson.
Simanjuntak, K, Teweng, W, Primadiansyah, A & Soumillena, N 2020, ‘Driving and managing stress in the Deep Mill Level Zone caving mine’, Proceedings from Massmin 2020, Santiago, pp. 394–405.
Villaescusa, E, Thompson, A, Player, J & Morton, E 2010, ‘Dynamic testing of ground control systems’, Results of Research Carried out as MERIWA Project No. M349A at the WA School of Mines, Curtin University of Technology, Perth.




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