DOI https://doi.org/10.36487/ACG_repo/2465_06
Cite As:
Bewick, R & Roy, J 2024, 'What I wish I knew earlier about rock engineering for deep mines ', 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. 185-194,
https://doi.org/10.36487/ACG_repo/2465_06
Abstract:
This paper presents some valuable lessons learned about rock engineering in deep mines: namely the misapplication of jointed rock mass models and classification systems, the relevant brittle rock mass damage mechanisms, the importance of understanding the intact rock strength, and management of stress and deformation.
Keywords: rock engineering, brittle rock masses, spalling, deep mining
References:
Barton, N, Lien, R & Lunde, J 1974, ‘Engineering classification of rock masses for the design of tunnel support’, Rock Mechanics, vol. 6, pp. 189–236.
Bewick, RP, Amann, F, Kaiser, PK & Martin, CD 2015, ‘Interpretation of UCS test results for engineering design’, Proceedings of the 13th International Congress on Rock Mechanics: ISRM Congress 2015 – Advances in Applied & Theoretical Rock Mechanics, International Society for Rock Mechanics and Rock Engineering, Lisbon, paper 521.
Bewick, RP, Kaiser, PK & Amann, F 2019, ‘Strength of massive to moderately jointed hard rock masses’, Journal of Rock Mechanics and Geotechnical Engineering,
Bewick, RP 2021, ‘The strength of massive to moderately jointed rock and its application to cave mining’, Rock Mechanics and Rock Engineering, vol. 54,
Bewick, R, Brzovic, A, Rogers, S, Griffiths, C & Otto, SA 2022, ‘Benchmarking framework for porphyry copper-gold rock masses for caveability and fragmentation decision-making’, in Y Potvin (ed.), Caving 2022: Proceedings of the Fifth International Conference on Block and Sublevel Caving, Australian Centre for Geomechanics, Perth, pp. 1303–1318,
Bieniawski, ZT 1976, ‘Rock mass classification in rock engineering’, in ZT Bieniawski (ed.), Exploration for Rock Engineering, vol 1, pp. 97–106, A.A. Balkema, Rotterdam.
Board, MP & Brummer, RK 1997, Kidd Creek Risk Assessment - Summary of Phase 6, unpublished report to Falconbridge Limited, Kidd Creek Mine, July 1997.
Brummer, RK 1998, Design of Orepasses: Methods for Determining the Useful Life of Orepasses Based on Previous Experience and Case Studies, CAMIRO Mining Division Limited.
Cai, M & Kaiser, PK 2018, Rockburst Support Reference Book: Volume 1 Rockburst Phenomenon and Support Characteristics, MIRARCO Mining Innovation, Sudbury.
Castro, L 1996, Analysis of Stress-Induced Damage Initiation around Deep Openings Excavated in a Moderately Jointed Brittle Rockmass, PhD thesis, University of Toronto, Toronto.
Diederichs, MS 1999, Instability of Hard Rock Masses: The Role of Tensile Damage and Relaxation, PhD thesis, University of Waterloo, Waterloo.
Goodman, R 1989, Introduction to Rock Mechanics, 2nd edn., Wiley, New York.
Grimstad, E & Bhasin, R 1997, Rock Support in Hard Rock Tunnels Under High Stress, Norwegian Geotechnical Institute, Oslo.
Hepworth, N 1985, Correlations Between Deformation Observations and Support Performance in a Tunnel in a High Stress Hard Rock Mining Environment, MSc thesis, University of the Witwatersrand, Johannesburg.
Hoek, E & Brown, ET 1980, ‘Empirical strength criterion for rock masses’, Journal of Geotechnical and Geoenvironmental Engineering, 106(GT9), pp. 1013–1035.
Hoek, E & Brown, ET 2019, ‘The Hoek-Brown failure criterion and GSI – 2018 edition’, Journal of Rock Mechanics and Geotechnical Engineering, vol. 11, no. 3, pp. 445–463.
Jager, AJ, Wojno, LZ & Henderson, NB 1990, ‘New developments in the design and support of tunnels under high stress conditions’, Technical Challenges in Deep Level Mining, Southern African Institute of Mining and Metallurgy, Johannesburg.
Kaiser, PK, McCreath, D & Tannant, D 1996, Canadian Rockburst Support Handbook, Geomechanics Research Centre, Sudbury.
Kaiser, PK, Diederichs, MS, Martin, CD, Sharp, J & Steiner, W 2000, ‘Underground works in hard rock tunneling and mining’, GeoEng 2000: An International Conference on Geotechnical and Geological Engineering, Volume 1: Invited Papers, Technomic Publishing Co., Lancaster, pp. 841–926.
Martin, CD & Chandler, NA 1994, ‘The progressive fracture of Lac du Bonnet granite’, International Journal of Rock Mechanics and Mining Sciences, vol. 31, no. 6, pp. 643–659.
Martin, CD 1997, ‘The 17th Canadian Geotechnical Colloquium: the effect of cohesion loss and stress path on brittle rock strength, Canadian Geotechnical Journal, vol. 34, no. 5, pp. 698–725.
Martin, CD, Kaiser, PK & McCreath, DR 1999, ‘Hoek-Brown parameters for predicting the depth of brittle failure around tunnels’, Canadian Geotechnical Journal, vol. 36, no. 1, pp. 136–151.
Pelli, F, Kaiser, PK & Morgenstern, NR 1991, ‘An interpretation of ground movements recorded during construction of the DonkinMorien tunnel’, Canadian Geotechnical Journal, vol. 28, no. 2, pp. 239–254.
Stacey, TR & Page, C 1984, Practical Handbook of Underground Rock Mechanics, Trans Tech Publishers, London.
Wagner, H 1987, ‘Design and support of underground excavations in highly stressed rock’, Proceedings of the 6th ISRM International Congress on Rock Mechanics, vol. 3, A.A. Balkema, Rotterdam, pp. 1443–1456.
Wiles, TD, Marisett, SD & Martin, CD 1998, Correlation Between Local Energy Release Density and Observed Bursting Conditions at Creighton Mine, mine modelling report, Sudbury.
Wilson, JW 1971, The Design and Support of Underground Excavations in Deep Level Hard Rock Mines, PhD thesis, University of the Witwatersrand, Johannesburg.
Wiseman, N 1978, A Study of the Factors Affecting the Design and Support of Gold Mine Tunnels, COM Research Report No.50/78, Chamber of Mines South Africa.
Wiseman, N 1979, ‘Factors affecting the design and condition of mine tunnels’, COM Research Report No.45/79, Chamber of Mines South Africa.
Xiao, P, Li, D, Zhao, G & Zhu, Q 2023, ‘Characteristics and mechanism of rockburst at five deep gold mines in Jiaodong Peninsula of China’, International Journal of Rock Mechanics and Mining Sciences,