Inconvenient truths about ground support in deep and high-stress mines

Authors: Hadjigeorgiou, J

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DOI https://doi.org/10.36487/ACG_repo/2465_0.02

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Hadjigeorgiou, J 2024, 'Inconvenient truths about ground support in deep and high-stress 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. 23-60, https://doi.org/10.36487/ACG_repo/2465_0.02

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Abstract:
Ground support is an integral part of geomechanical risk management in deep and high-stress mines. Maintaining the integrity of underground excavations under extreme ground conditions has been the driving force for significant innovations in ground support technology. In addition, access to powerful analytical and numerical tools and monitoring technology have illustrated opportunities for significant improvement in the design process. This paper employs field observations, performance data from controlled laboratory experiments, and forensic investigations to challenge common assumptions in the design and implementation of ground support systems in deep and high stress mines.

Keywords: ground support, material properties, rockbolt configuration, quasi-static and impact testing, field observations, forensic investigations

References:
ASTM International, A29 Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought, West Conshohocken.
ASTM International, A416 Standard Specification for Steel Strand, Uncoated Seven-Wire for Prestressed Concrete, West Conshohocken.
ASTM International A572 Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel, West Conshohocken.
ASTM International, A615 Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement, West Conshohocken.
ASTM International, A706 Standard Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement, West Conshohocken.
ASTM International, A1011 Standard Specification for Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High Strength, West Conshohocken.
ASTM International, A1018 Standard Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled, Carbon, Commercial, Drawing, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High Strength, West Conshohocken.
ASTM International, E1019 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt Alloys by Various Combustion and Fusion Techniques, West Conshohocken.
ASTM International, E1479 Standard Practice for Describing and Specifying Inductively Coupled Plasma Atomic Emission Spectrometers, West Conshohocken.
ASTM International, F432 Standard Specification for Roof and Rock Bolts and Accessories, West Conshohocken.
Baek, B, Karampinos, E & Hadjigeorgiou J, 2020, ‘Understanding the impact of test configuration on welded wire mesh laboratory test results’, Rock Mechanics and Rock Engineering, vol. 53, pp. 4873–4892.
Barton, N, Lien, R & Lunde, J 1974, ‘Engineering classification of rock masses for design of tunnel support’, Rock Mechanics and Rock Engineering, vol. 6, no. 4, pp. 189–236.
Bieniawski, ZT 1989, Engineering Rock Mass Classifications, John Wiley & Sons, New York.
Brändle, R & Luis Fonseca, R 2019, ‘Dynamic testing of surface support systems’, in J Hadjigeorgiou & M Hudyma (eds), Ground Support 2019: Proceedings of the Ninth International Symposium on Ground Support in Mining and Underground Construction, Australian Centre for Geomechanics, Perth, pp. 243–250,
Brändle, R, Luis Fonseca, R, von Rickenbach, G, Fischer, G, Vallejos, JA, Marambio, E, Burgos, L & Cuello, D 2022, ‘Large-scale dynamic testing of ground support systems at the Walenstadt testing facility’, in Y Potvin (ed.), Caving 2022: Proceedings of the Fifth International Conference on Block and Sublevel Caving, Australian Centre for Geomechanics, Perth, pp. 177–190,
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,
ACG_rep/1704_48_Charette
Chen, H, Ramandi, HL, Walker, J, Crosky, A & Saydam, S 2018, ‘Failure of the threaded region of rockbolts in underground coal mines’, Mining Technology, vol. 127, no. 3, pp. 146–154.
Chen, Y & Li, CC 2015, ‘Influences of loading condition and rock strength to the performance of rock bolts’, Geotechnical Testing Journal, vol. 38, no. 2, pp. 1–11.
Counter, DB 2014, ‘Kidd Mine – dealing with the issues of deep and high stress mining – past, present and future’, 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. 3–22,
Darlington, B, Rataj, M, Balog, G & Barnett, D 2018, ‘Development of the MDX Bolt and In-Situ Dynamic Testing at Telfer Gold Mine’, Rock Dynamics and Applications, CRC Press, Boca Raton.
Dieter, GE 1986, Mechanical Metallurgy, McGraw Hill, New York.
Drover, C & Villaescusa, E 2016, ‘Field performance of fully encapsulated reinforcement during violent failure events’, Seventh International Conference & Exhibition on Mass Mining, Australasian Institute of Mining and Metallurgy, Melbourne.
Drover, C & Villaescusa, E 2015, ‘Performance of Shotcrete Surface Support Following Dynamic Loading of Mining Excavations’, in Lu & Sigl (eds), Shotcrete for Underground Support XI, ECI Symposium Series.
Dorion, JF & Hadjigeorgiou, J 2014, ‘Corrosion considerations in design and operation of rock support systems’, Mining Technology, vol. 23, no. 2, pp. 59–68.
Doucet, C & Voyzelle, B 2012, Technical Information Data Sheets, Natural Resources Canada, Ottawa.
European Committee for Standardization 2013, EN 10149 Hot Rolled Flat Products Made of High Yield Strength Steels for Cold Forming General Technical Delivery Conditions, Brussels.
European Committee for Standardization 2004, EN 10025 Hot Rolled Products of Structural Steel, Brussels.
European Committee for Standardization 1998, EN 10267 Ferritic-Perlitic Steels for Precipitation Hardening From Hot Working Temperatures, Brussels.
National Standard of the People’s Republic of China 2008, GB 912 Hot-Rolled Sheets and Strips of Carbon Structural Steels and High Strength Low Alloy Structural Steels, Beijing.
Hadjigeorgiou, J 2012, ‘Where do the data come from?’, Mining Technology, vol. 121, no. 4, pp. 236–247.
Hadjigeorgiou, J, 2016, ‘Rock support: degradation and failure’, in E Nordlund, TH Jones & A Eitzenberger (eds), Ground Support 2016: Eighth International Symposium on Ground Support in Mining and Underground Construction, Luleå University of Technology, Luleå.
Hadjigeorgiou, J 2020, ‘Understanding, managing, and communicating geomechanical mining risk’, Transactions of the Institutions of Mining and Metallurgy: Section A. Mining Technology, vol. 129, pp. 159–173.
Hadjigeorgiou, J, Ghali, E, Charette, F & Krishnadev MR 2002, ‘Fracture analysis of friction rock bolts’, in Hammah et al (eds), NARMS-TAC. University of Toronto, Toronto, pp. 881–887.
Hadjigeorgiou, J & Harrison, JP 2012, ‘Uncertainty and sources of error in rock engineering’, in Q Qian & X Zhou (eds), Proceedings of the 12th ISRM International Congress on Rock Mechanics, Harmonising Rock Engineering and the Environment, CRC Press, Leiden, pp. 2063–2067.
Hadjigeorgiou, J & Potvin, Y 2007, ‘Overview of dynamic testing of ground support’, in Y Potvin (ed.), Deep Mining 2007: Proceedings of the Fourth International Seminar on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 349–371,
Hadjigeorgiou, J & Potvin, Y 2011, ‘A critical assessment of dynamic rock reinforcement and support testing facilities’, Rock Mechanics and Rock Engineering, vol. 44, no. 5, pp. 565–578.
Hadjigeorgiou, J & Potvin, Y 2011, ‘Hard rock ground control with screen and shotcrete’, SME Mining Engineering Handbook, Society of Mining, Metallurgy and Exploration, Engelwood, pp. 573–594.
Hadjigeorgiou, J & Potvin, Y 2023, ‘Ground support guidelines for squeezing ground conditions’, Journal of the Southern African Institute of Mining and Metallurgy, vol. 123, no. 7, pp. 371–380.
Hadjigeorgiou, J & Stacey, TR 2018, ‘Challenges in determining the capacity of mesh’, AusRock 2018: The Fourth Australasian Ground Control in Mining Conference, The Australasian Institute of Mining and Metallurgy, Melbourne, pp. 280–290.
Hadjigeorgiou, J, Savguira, Y & Thorpe, SJ 2020, ‘Impact of steel properties on the corrosion of expandable rock bolts’, Rock Mechanics and Rock Engineering, vol. 53, pp. 705–721.
Hadjigeorgiou, J, Savguira, Y & Thorpe, SJ 2019, ‘Comparative susceptibility to corrosion of coated expandable bolts’, Rock Engineering, Rock Mechanics and Rock Engineering, vol. 52, issue 8, pp. 2665–2680.
Hadjigeorgiou, J & Thorpe SJ 2020, ‘Failure analysis of rock support in hard rock tunnels’, ISRM International Symposium Eurock 2020: Hard Rock Engineering, Trondheim.
Hadjigeorgiou, J, Thorpe, SJ & Cole, KM 2023, ‘Quality assurance considerations for friction rock stabilizers’, Mining Technology (TIMM A), vol. 132, no. 1, pp. 17–29.
Hadjigeorgiou, J & Tomasone, P 2018, ‘Characterising the behaviour of rockbolts based on in situ pull tests’, in Y Potvin & J Jakubec (eds), Caving 2018: Proceedings of the Fourth International Symposium on Block and Sublevel Caving, Australian Centre for Geomechanics, Perth, pp. 727–734,
He, M, Gong, W, Wang, J, Qi, P, Tao, Z, Du, S, Peng, Y, 2014, ‘Development of a novel energy-absorbing bolt with extraordinarily large elongation and constant resistance’, International Journal of Rock Mechanics and Mining Sciences, vol. 67, pp. 29–42.
Heal, D 2010, Observations and Analysis of Incidences of Rockburst Damage in Underground Mines, PhD thesis, The University of Western Australia, Perth.
Hoek, E, Kaiser, PK & Bawden, WF 1995, Support in Underground Excavations in Hard Rock, A.A. Balkema, Rotterdam.
Hudson, JA, Crouch, SL & Fairhurst, C 1972, ‘Soft, stiff, and servo-controlled testing machines: a review with reference to rock failure’, Engineering Geology, vol. 6, no. 3, pp. 155–89.
International Organization for Standardization 2015, Quality Management Systems – Requirements (ISO 90011:2015), Geneva.
International Organization for Standardization 2019, Metallic Materials — Tensile Testing (ISO 6892-1:2019), Geneva.
Jager, AJ 1992, ‘Two new support units for the control of rockburst damage’, in PK Kaiser & DR McCreath (eds), Proceedings of the International Symposium on Rock Support, A.A. Balkema, Rotterdam, pp. 621–631.
Jones, T, Nordlund, E & Wettainen, T 2019, ‘Mining-induced deformation in the Malmberget Mine’, Rock Mechanics and Rock Engineering, vol. 52, pp. 1903–1916.
Kaiser, PK & Cai, M 2013, ‘Critical review of design principles for rock support in burst-prone ground – time to rethink!’, in Y Potvin & B Brady (eds), Ground Support 2013: Proceedings of the Seventh International Symposium on Ground Support in Mining and Underground Construction, Australian Centre for Geomechanics, Perth, pp. 3–37,
ACG_rep/1304_01_Kaiser
Kaiser, PK & Malovichko, DA 2022, ‘Energy and Displacement Demands Imposed on Rock Support by Strainburst Damage Mechanisms’, RaSim 10: Rockbursts and Seismicity in Mines, Society for Mining, Metallurgy & Exploration, Engelwood.
Kaiser, PK, McCreath, DR & Tannant, DD 1996, Canadian Rockburst Support Handbook, Canadian Mining Industry Research Organization, Sudbury.
Kaiser, PK & Moss, A 2022, ‘Deformation-based support design for highly stressed ground with a focus on rockburst damage mitigation’, Journal of Rock Mechanics and Geotechnical Engineering, vol. 14, pp. 50–66.
Knox, G 2023, ‘Laboratory-based drop testing of rock reinforcement’, in J Wesseloo (ed.), Ground Support 2023: Proceedings of the 10th International Conference on Ground Support in Mining, Australian Centre for Geomechanics, Perth, pp. 23–38,
Knox, G & Hadjigeorgiou, J 2023a, ‘Performance of conventional and energy‑absorbing self‑drilling hollow core rockbolts under controlled laboratory conditions’, Rock Mechanics and Rock Engineering, vol. 56, pp. 4363–4378.
Knox, G & Hadjigeorgiou, J 2023b, ‘Performance in shear of mechanical hybrid rockbolts’, in J Wesseloo (ed.), Ground Support 2023: Proceedings of the 10th International Conference on Ground Support in Mining, Australian Centre for Geomechanics, Perth, pp. 495–506,
Knox, G & Hadjigeorgiou, J 2022, ‘Influence of testing configuration on the performance of paddled energy-absorbing rockbolts under impact loading’, Rock Mechanics and Rock Engineering, vol. 55, pp. 5705–5721.
Knox, G & Berghorst, A 2019, ‘Dynamic testing: determining the residual dynamic capacity of an axially strained tendon’, in J Hadjigeorgiou & M Hudyma (eds), Ground Support 2019: Proceedings of the Ninth International Symposium on Ground Support in Mining and Underground Construction, Australian Centre for Geomechanics, Perth, pp. 231-242,
Li, CC 2010a, ‘A new energy-absorbing bolt for rock support in high stress rock masses’, International Journal of Rock Mechanics and Mining Sciences, vol. 47, no. 3, pp. 396–404.
Li, CC 2010b, ‘Field observations of rock bolts in high stress rock masses’, Rock Mechanics & Rock Engineering, vol. 43, pp. 491–496.
Li, CC, Hadjigeorgiou, J, Mikula, P, Knox, G, Darlington, B, Royer, R … & Hosp M, 2021, ‘Performance of Identical rockbolts tested on four dynamic testing rigs employing the direct impact method’, Journal of Rock Mechanics and Geotechnical Engineering, vol. 13, issue 4, pp. 745–754.
Li, CC, Mikula, P, Hadjigeorgiou, J, Simser, B, He, M, Canbulat, I & Joughin, W 2024, ‘ISRM Suggested Method for determining the properties of rock bolt assemblies by mass freefall impact testing in the laboratory’, submitted to Rock Mechanics and Rock Engineering.
Li, CC, Stjern, G & Myrvang, A 2014, ‘A review on the performance of conventional and energy-absorbing rockbolts’, Journal of Rock Mechanics and Geotechnical Engineering, vol. 6, issue 4, pp. 315–327.
Louchnikov, V, Sandy, Watson, O, Orunesu, M & Eremenko, V 2014, ‘An Overview of Surface Rock Support for Deformable Ground Conditions’, Proceedings of the 12th AUSIMM Underground Operators’ Conference, The Australasian Institute of Mining and Metallurgy, Melbourne, pp. 57–65.
Marinos, V, Marinos, P & Hoek, E 2005, ‘The geological strength index: applications and limitations’, Bulletin of Engineering Geology and the Environment, vol. 64, pp. 55–65.
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.
Mercier-Langevin, F 2019, ‘Ground support: a mine manager’s perspective’, in J Hadjigeorgiou & M Hudyma (eds), Ground Support 2019: Proceedings of the Ninth International Symposium on Ground Support in Mining and Underground Construction, Australian Centre for Geomechanics, Perth, pp. 29–40,
Mercier-Langevin, F & Hadjigeorgiou, J 2011, ‘Towards a better understanding of squeezing potential in hard rock mines’, Transactions of the Institutions of Mining and Metallurgy: Section A – Mining Technology, vol. 120, no. 1, pp. 36–44.
Mercier-Langevin, F & Turcotte, P 2007, ‘Evolution of ground support practices at Agnico Eagle’s LaRonde Division: innovative solutions to high stress ground’, in E Eberhardt, D Stead & T Morrison (eds), Rock Mechanics: Meeting Society’s Challenges and Demands, pp. 1497–1504.
Mikula, PA 2012, ‘Progress with empirical performance charting for confident selection of ground support in seismic conditions’. in Y Potvin (ed.), Proceedings of the Sixth International Seminar on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 71–90.
Mikula, P & Gebremedhin, B 2017, ‘Empirical selection of ground support for dynamic conditions using charting of support performance at Hamlet min’, 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. 625–636,
Morissette, P & Hadjigeorgiou J, 2019, ‘Ground support design for dynamic-loading conditions: a quantitative data-driven approach based on rockburst case studies’, Journal of Rock Mechanics and Geotechnical Engineering, vol. 11, pp. 909–919.
Morissette, P & Hadjigeorgiou, J 2017, ‘The development of a ground support design strategy for deep mines subjected to dynamic-loading 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. 651–665,
ACG_rep/1704_44_Morissette
Morissette, P, Hadjigeorgiou, J, Punkkinen, AR, Chinnasane, DR & Sampson-Forsythe, A 2017, ‘The influence of mining sequence and ground support practice on the frequency and severity of rockbursts in seismically-active mines’, The Journal of the Southern African Institute of Mining and Metallurgy, vol. 117, pp. 47–58.
Morissette, P, Hadjigeorgiou, J, Punkkinen, AR & Chinnasane, DR 2014, ‘The influence of change in mining and ground support practice on the frequency and severity of rockbursts’, 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. 165–177,
Morkel, IG, Mikula, PA & Whiting, RK 2023, ‘A review of ground support mesh testing around the world’, in J Wesseloo (ed.), Ground Support 2023: Proceedings of the 10th International Conference on Ground Support in Mining, Australian Centre for Geomechanics, Perth, pp. 373–398,
Morton, E, Thompson, A, Villaescusa, E & Roth, A 2007, ‘Testing and analysis of steel wire mesh for mining applications of rock surface support’, in Ribeiro e Sousa, Olalla and Grossman (eds), 11th Congress of the International Society for Rock Mechanics, vol. 2, pp. 1061–1064.
Ortlepp, WD 1969, ‘An Empirical determination of the effectiveness of rockbolt support under impulse loading’, in TL Brekke & FA Jorstad (eds.), Proceedings of the International Symposium on Large Permanent Underground Openings, Universitatsforlaget, Oslo, pp. 197–205.
Ortlepp, WD & Stacey, TR 1994, ‘Rockburst mechanisms in tunnels and shafts’, Tunnelling and Underground Space Technology, vol. 9, no. 1, pp. 59–65.
Ortlepp, WD & Stacey, TR 1998, ‘Performance of tunnel support under large deformation static and dynamic loading’, Tunnelling and Underground Space Technology, vol. 13, no. 1, pp. 15–21.
Potvin, Y & Hadjigeorgiou, J 2016, ‘Selection of ground support for mining drives based on the Q-System’, in E Nordlund, T Jones & A Eitzenberger (eds), Proceedings of the Eighth International Symposium on Ground Support in Mining and Underground Construction, Luleå University of Technology, Luleå.
Potvin, Y & Hadjigeorgiou, J 2020, Ground Support for Underground Mines, Australian Centre for Geomechanics, Perth.
Potvin, Y & Wesseloo, J 2013, ‘Towards an understanding of dynamic demand on ground support’, in Y Potvin & B Brady (eds), Ground Support 2013: Proceedings of the Seventh International Symposium on Ground Support in Mining and Underground Construction, Australian Centre for Geomechanics, Perth, pp. 287–304,
Potvin, Y, Wesseloo, J & Heal, D 2010, ‘An interpretation of ground support capacity submitted to dynamic loading’, in M Van Sint Jan & Y Potvin (eds), Deep Mining 2010: Proceedings of the Fifth International Seminar on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 251–272,
Potvin, Y, Wesseloo, J, Morkel, G, Tierney, S & Woodward, K 2018, Seismic Risk Management Practices in Underground Mines, Australian Centre for Geomechanics, Perth.
Player, JR, Thompson, AG & Villaescusa, E 2008, ‘Dynamic testing of reinforcement system’, in TR Stacey and D Malan (eds), Proceedings of the 6th International Symposium on Ground Support in Mining and Civil Engineering Construction, The South African Institute of Mining and Metallurgy, Johannesburg, pp. 581–595.
Punkkinen, AR & Yao, M 2007, ‘Change of ground support system and mining practice in the deep at Creighton Mine’, CIM AGM Montreal.
Roth, A, Cala, M, Brändle, R & Rorem, E 2014, ‘Analysis and numerical modelling of dynamic ground support based on instrumented full-scale tests’, 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. 151–163,
Scott, J 1980, ‘A new innovation in rock support – friction rock stabilizers’, CIM Bulletin, February issue, pp. 65–69.
Simser, BP 2007, ‘The Weakest Link - Ground support observations at some Canadian shield hard rock mines’, in Y Potvin (ed.), Deep Mining 2007: Proceedings of the Fourth International Seminar on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 335–348,
Simser, BP 2018, ‘Rock burst observations from hard rock mines: failures, successes, lessons learned’, in CC Li, X Li & Z-X Zhang (eds), Rock Dynamics - Experiments, Theories and Applications, Taylor & Francis Group, London, pp. 3–12.
Simser, BP 2019, ‘Rockburst management in Canadian hard rock mines’, Journal of Rock Mechanics and Geotechnical Engineering, vol. 11, pp. 1036–1043.
Simser, B, Andrieux, P, Mercier-Langevin, F, Parrott, T & Turcotte, 2007, ‘Field behaviour and failure modes of modified conebolts at the Craig, LaRonde and Brunswick Mines in Canada’, in Y Potvin, TR Stacey & J Hadjigeorgiou (eds), Challenges in Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 351–358.
South African Bureau of Standards 2011, Steel Bars for Concrete Reinforcement (SANS 920:2011), Groenkloof.
Stacey, TR 2012 ‘Support of excavations subjected to dynamic (rockburst) loading’, Proceedings of the 12th International Congress on Rock Mechanics, International Society for Rock Mechanics, Lisbon, pp. 137–145.
Stacey, TR 2016, ‘Innovative and controversial support for rockbursting conditions’ in E Nordlund, T Jones & A Eitzenberger (eds), Proceedings of the Eighth International Symposium on Ground Support in Mining and Underground Construction, Luleå University of Technology, Luleå.
Stacey, TR, 2016, ‘Addressing the consequences of dynamic rock failure in underground excavations’, Rock Mechanics & Rock Engineering, vol. 49, pp. 4091–4101.
Stacey, TR & Hadjigeorgiou, J 2022, ‘Quantified value-created process (QVP) – a value-based criterion for mine design and operating decisions’, Journal of the Southern African Institute of Mining and Metallurgy, vol. 122, no. 2, pp. 73–82.
Stacey, TR & Ortlepp, WD 1999, ‘Retainment support for dynamic events in mines’, Proceedings of the International Symposium of Rock Support and Reinforcement Practice in Mining, Balkema, Kalgoorlie, pp. 329–333.
Stacey, TR & Ortlepp, WD 2007, ‘Yielding rock support — the capacities of different types of support, and matching of support type to seismic demand’, in Y Potvin, TR Stacey & J Hadjigeorgiou (eds), Challenges in Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 411–415.
Stacey, TR, Rojas, E 2013, ‘A potential method of containing rockburst damage and enhancing safety using a sacrificial layer’, Journal of the Southern African Institute of Mining and Metallurgy, vol. 113, pp. 565–573.
Stillborg, B 1993, ‘Rockbolt tensile loading across a joint’, Proceedings of The First African Symposium on Mine Drainage and Environment Protection from Mine Waste Water Disposal, International Mine Water Association, Wendelstein,
pp. 587–604.
Stjern, G 1995, Practical Performance of Rock Bolts, PhD thesis, University of Trondheim, Trondheim.
Tomasone, P, Bahrani, N & Hadjigeorgiou J 2020, ‘Practical Considerations in the modelling of resin grouted rock bolts’, The Journal of the Southern African Institute of Mining and Metallurgy, vol. 120, pp. 385–292.
Turcotte, P 2014, ‘Practical applications of a rockburst database to ground support design at LaRonde Mine’, 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. 79–91,
Varden, R, Lachenicht, R, Player, J, Thompson, A & Villaescusa, E 2008, ‘Development and implementation of the Garford dynamic bolt at the Kanowna Belle Mine’, Proceedings of the 10th Underground Operators Conference, Australasian Institute of Mining and Metallurgy, Melbourne, pp. 95–102.
Villaescusa, E, Thompson, AG & Player, JR 2015, Dynamic Testing of Ground Support Systems: Report 312 Project M417, Minerals Research Institute of Western Australia, Perth.
Villaescusa, E, Kusui, A & Drover, C 2016. ‘Ground Support design for sudden and violent failures in hard rock tunnels’, 9th Asian Rock Mechanics Symposium, Bali.
Wijk, G & Skogberg, B 1982, ‘The inflatable rockbolting system’, Proceedings of the 14th Canadian Rock Mechanics Symposium, Canadian Institute of Mining and Metallurgy, Vancouver, pp. 106–115.
Watt, G, Roberts, T & Faulkner, D 2018, ‘Single pass drill, install and inject self-drilling resin bolt applications in poor ground’, Proceedings of The Fourth Australasian Ground Control in Mining Conference, The Australasian Institute of Mining and Metallurgy, Melbourne. pp 323–343.
Wu, YK, Oldsen, J & Lamothe, M 2010, ‘The Yield-Lok Bolt for bursting and squeezing ground support’, in M Van Sint Jan & Y Potvin (eds), Deep Mining 2010: Proceedings of the Fifth International Seminar on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 301–308,




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