Hadjigeorgiou, J 2019, 'Understanding, managing and communicating geomechanical mining risk', in J Wesseloo (ed.), MGR 2019: Proceedings of the First International Conference on Mining Geomechanical Risk
, Australian Centre for Geomechanics, Perth, pp. 3-20, https://doi.org/10.36487/ACG_rep/1905_0.1_Hadjigeorgiou
This paper addresses issues related to understanding, managing and communicating geomechanical mining risk at all decision levels of a mining company. The focus is on how different risk analysis tools and procedures can be used effectively, while also highlighting limitations of some of the most popular tools. A strong case is made for a critical assessment of the effectiveness of risk-management tools. Finally, the paper discusses the challenges of understanding and communicating geomechanical mining risk, given the asymmetry of knowledge and information by decision-makers in mining companies.
Keywords: geomechanical mining risk, underground and surface mining, risk tools, asymmetry of knowledge
Baecher, GB & Christian, JT 2003, Reliability and Statistics in Geotechnical Engineering, John Wiley & Sons Ltd, Chichester.
Bahrani, N & Hadjigeorgiou, J 2018, ‘Influence of stope excavation on drift convergence and support behavior: insights from 3D continuum and discontinuum models’, Rock Mechanics and Rock Engineering, vol. 51, pp. 2395–2413.
Brown, ET 2012, ‘Risk assessment and management in underground rock engineering—an overview’, Journal of Rock Mechanics and Geotechnical Engineering, vol. 4, no. 3, pp. 193–204.
Carter, TG 2014, ‘Guidelines for use of the scaled span method for surface crown pillar stability assessment’, Proceedings of the 1st International Conference on Applied Empirical Design Methods in Mining, Sociedad Peruana de Geoingenieria.
Dershowitz, WS & Einstein, HH 1988, ‘Characterizing rock joint geometry with joint system models’, Rock Mechanics and Rock Engineering, vol. 21, pp. 21–51.
Einstein, HH 1996, ‘Risk and risk analysis in rock engineering’, Tunnelling and Underground Space Technology, vol. 11, no. 2, pp. 141–155.
Einstein, HH 2003, ‘Uncertainty in rock mechanics and rock engineering - then and now’, Proceedings of the 10th ISRM Congress, International Society for Rock Mechanics and Rock Engineering, Lisbon, pp. 281–293.
Fillion, MH & Hadjigeorgiou, J 2016, ‘Implications of collecting additional data for slope design in an open pit operation’, The Journal of the Southern African Institute of Mining and Metallurgy, vol. 116, pp. 357–366.
Fillion, MH & Hadjigeorgiou, J 2017, ‘Quantifying the impact of additional laboratory tests on the quality of a geomechanical model’. Rock Mechanics and Rock Engineering, vol. 50, issue 5, pp. 1097–1121.
Fillion, MH & Hadjigeorgiou, J 2018, ‘Recommendations for a quantitative description of joint orientation data’, Geotechnical and Geological Engineering,
Gill, DE, Corthésy, R & Leite, MH 2005, ‘Determining the minimal number of specimens for laboratory testing of rock properties’, Engineering Geology, vol. 78, issue 1–2, pp. 29–51.
Gritziotis, G 2015, Final Report Vol. 1: Mining Health, Safety and Prevention Review, Ministry of Labour, Toronto.
Grenon, M & Hadjigeorgiou, J 2003, ‘Drift reinforcement design based on discontinuity network modelling’, International Journal Rock Mechanics and Mining Sciences, vol. 40, issue 6, pp. 833–845.
Hadjigeorgiou, J & Harrison, JP 2011, ‘Uncertainty and sources of error in rock engineering, in Q Qian and X Zhou (eds), ISRM Congress of Rock Mechanics, Harmonising Rock Engineering and the Environment, CRC Press, London, pp. 2063–2067.
Hadjigeorgiou, J & Grenon, M 2017, ‘Drift reinforcement design based on Discrete Fracture Network (DFN) modelling, in XT Feng (ed), Rock Mechanics and Engineering, vol. 4, Taylor & Francis Group, Milton Park, pp. 123–146.
Health and Safety Executive 2001, Reducing Risks, Protecting People: HSE’s Decision-making Process, Health and Safety Executive.
ISO 2018, 31000:2018, Risk Management – Guidelines, International Organization for Standardization, Geneva.
Joughin, WC, Muaka, JJM, Mpunzi, P, Sewnun, D & Wesseloo J 2016, ‘A risk-based approach to ground support design’,
in E Nordlund, TH Jones & A Eitzenberger (eds.), Proceedings of the Eighth International Symposium on Ground Support in Mining and Underground Construction, Luleå University of Technology, Luleå.
Kiureghian, AD & Ditlevsen, O 2009, ‘Aleatory or epistemic? Does it matter?’, Structural Safety, vol. 31, pp. 105–112.
Ontario Ministry of Labour 2017, Risk Assessment and Management for Mines and Mining Plants, Ontario Ministry of Labour, Toronto.
Priest, DS & Brown, ET 1983, ‘Probabilistic stability analysis of variable rock slopes’, Transactions of the Institute of Mining and Metallurgy, vol. 92, pp. A1–A12.
Quail, R 2012, ‘Defining your taste for risk’, Corporate Risk Canada, Spring 2012, pp. 25–30.
Reagan, RT, Mosteller, F & Youtz, C 1989, ‘Quantitative meanings of verbal probability expressions’, Journal of Applied Psychology, vol. 74, no. 3, pp. 433–442.
Rogers, S, Elmo, D, Beddoes, R &Dershowitz, W 2009, ‘Mine scale DFN modelling and rapid upscaling in geomechanical simulations of large open pits’, Proceedings of the International Conference on Large Open Pits.
Stacey TR, Terbrugge PJ & Wesseloo J 2007, ‘Risk as a rock engineering design criterion’, Challenges in Deep and High Stress Mining, Y Potvin, TR Stacey & J Hadjigeorgiou (eds), Australian Centre for Geomechanics, Perth, pp. 19–25.
Standards Australia 2009, AS/NZS ISO 31000:2009: Risk Management–Principles and Guidelines, Standards Australia, Sydney.
Steffen, OKH 1997, ‘Planning of open pit mines on a risk basis’, The Journal of the South African Institute of Mining and Metallurgy, vol. 2, pp. 47–56.
Steffen, OKH, Contreras, LF, Terbrugge, PJ & Venter, J 2008, ‘A risk evaluation approach for pit slope design’, Proceedings of the 42nd US Rock Mechanics Symposium and 2nd US-Canada Rock Mechanics Symposium, American Rock Mechanics Association, Alexandria.
Terbrugge, PJ, Wesseloo, J, Venter, J & Steffen, OKH, 2006, ‘A risk consequence approach to open pit slope design’, The Journal of the South African Institute of Mining and Metallurgy, vol. 106, no. 7, pp. 503–511.
Tversky, A & Kahneman, D 1986, ‘Rational choice and the framing of decisions’, The Journal of Business, vol. 59, no. 4, Part 2: The Behavioral Foundations of Economic Theory (Oct., 1986), pp. S251–S278.
Ulusay, R & Hudson, JA 2007, The Complete ISRM Suggested Methods for Rock Characterization, Testing and Monitoring: 1974-2006, International Society for Rock Mechanics, Lisbon.
Wiles, TD 2006, ‘Reliability of numerical modelling predictions’, International Journal of Rock Mechanics and Mining Sciences, vol. 43, pp. 454–472.