Ground Control Methods in High-Stress Ground Conditions in Civil and Mining Tunnels- Case Studies, and Benchmarking

Document Type : Research Article

Authors

1 Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran

2 Department of Mining & Metallurgical Engineering, Curtin University, Western Australian School of Mines (WASM-MECE), Australia

Abstract

Extreme ground behavior in high-stress rock masses such as rockburst prone and squeezing ground conditions are encountered in a range of underground projects both in civil and mining applications. Determining the most appropriate support system in such grounds is one of the major challenges for ground control engineers because there are many contributing factors to be considered, such as the rock mass parameters, the stress condition, the type and performance of the support systems, the condition of major geological structures and the size and geometry of the underground excavation. The main characteristics and support requirements of rockburst-prone and squeezing ground conditions are critically reviewed and characteristics of support functions are discussed. Different types of energy-absorbing rock bolts and other internal and external support elements applicable for ground support in rockburst-prone and squeezing grounds are introduced. Important differences in the choice and economics of ground support strategies in high-stress ground conditions between civil tunnels and mining excavations are discussed. Ground support benchmarking data and mitigation measures for mines and civil tunnels in burst-prone and squeezing grounds conditions are briefly presented by some examples in practice. The importance of the application of shotcrete shells with yielding elements in squeezing ground conditions has been presented in detail by a simplified Convergence Confinement Method (CCM) example.

Keywords

Main Subjects

References

[1] E. Hoek, E.T. Brown, Underground Excavations in Rock, Institution of Mining and Metallurgy, London, 1980, 527 p.
[2] A. Palmstrom, H. Stille, Ground behavior and rock engineering tools for underground excavations, Tunnelling and Underground Space Technology, 22 (7) (2007) 363–376.
[3] M. Sharifzadeh, X.T. Feng, X. Zhang, L. Qiao, Y. Zhang, Challenges in multi-scale hard rock behavior evaluation at deep underground excavations, 12th Iranian and 3rd regional tunneling conference, Tehran, Iran, 2017.
[4] E. Hoek, P.K. Kaiser, W.F. Bawden, Support of underground excavation in hard rock. Rotterdam, Balkema, 1995.
[5] C.C. Li, Principles of rockbolting design, Journal of Rock Mechanics and Geotechnical Engineering, 9 (2017) 396-414.
[6] P.K. Kaiser, D.R. McCreath, D.D. Tannant, Canadian Rockburst Support Handbook, Geomechanics Research Centre, Laurentian University, Sudbury, 1996.
[7] P.K. Kaiser, M. Cai, Design of rock support system under rockburst condition, Journal of Rock Mechanics and Geotechnical Engineering, 4 (3) (2012) 215–227.
[8] M.J. Dunn, Dynamic ground support- design methodologies and uncertainties, Deep Mining 2017: Eighth International Conference on Deep and High Stress Mining–J Wesseloo (ed.), Australian Centre for Geomechanics, 2017, pp. 637-650.
[9] Y. Potvin, J. Wesseloo, D.P. Heal, An interpretation of ground support capacity submitted to dynamic loading, Deep Mining 2010- M. Van Sint Jan and Y. Potvin (eds), Perth, Australia, Australian Centre for Geomechanics, 2010, pp. 251-272.
[10] H. Wagner, Support requirements for rockburst conditions, in: Proceedings of the 1st International Congress on Rockbursts and Seismicity in Mines, Southern African Institute of Mining and Metallurgy, Johannesburg, 1984, pp. 209–218.
[11] A. Anon, An Industry Guide to Methods of Ameliorating the Hazards of Rockfalls and Rockbursts, Chamber of Mines Research Organization, Johannesburg, 1988.
[12] M.K.C. Roberts, R.K. Brummer, Support requirements in rockburst conditions, The Journal of The Southern African Institute of Mining and Metallurgy, 88 (1988) 97–104.
[13] D.P. Heal, Ground support for rockbursting conditions – Theory and Practice. Advanced Ground Support in Underground Mining Course, presented by Australian Centre for Geomechanics, Perth, Western Australia, Course No. 0703, 2007.
[14] W.D. Ortlepp, A.H. Swart, Extended use of the Savuka dynamic test facility to improve material and analytical technology in deep-level stope support, SIMRAC Report GAP 818, 2002.
[15] M. Plouffe, T. Anderson, K. Judge, Rock bolts testing under dynamic conditions at CANMET-MMSL, Sixth International Symposium on Ground Support in Mining and Civil Engineering Construction, Cape Town, South Africa, 2008, pp. 581–596.
[16] M.W. Hildyard, A.M. Milev, Simulated rockburst experiment: Numerical back-analysis of seismic wave interaction with the tunnel, The Journal of The South African Institute of Mining and Metallurgy, 2001, pp. 223–234.
[17] J.F. Archibald, J.P. Baidoe, P.T. Katsabanis, Rockburst damage mitigation benefits deriving from use of spray-on rock linings, in: Proceeding of Third International Seminar on Surface Support Liners: Thin Spray-on Liners, Shotcrete and Mesh, Quebec, Canada, 2003.
[18] D.P. Heal, Y. Potvin, In-situ dynamic testing of ground support using simulated rockbursts, in: Proceedings Fourth International Seminar on Deep and High Stress Mining (Deep Mining 07), Y. Potvin (ed), Perth, Australia, 2007, pp. 373–394.
[19] D.P. Heal, Observations and analysis of incidences of rockburst damage in underground mines, Ph.D. thesis, University of Western Australia, 2010, 357 p.
[20] M. Cai, Principles of rock support in burst-prone ground, Int. J. Tunn. Undergr, Space Technol, 36 (2013) 46-56.
[21] P.K. Kaiser, M. Cai, Critical review of design principles for rock support in burst-prone ground – time to rethink! Ground Support 2013- Potvin and Brady (eds), Perth, Australia, 2013, pp. 3-39.
[22] M. Cai, P.K. Kaiser, A Guide to Rockburst Support Selection, unpublished, 2013.
[23] W.D. Ortlepp, T.R. Stacey, Testing of tunnel support: dynamic load testing for rock support containment systems, SIMRAC GAP Project, 1997, 221 p.
[24] B. Simser, Design of rockburst support systems for deep hard rock mines. Volume 4: Excavation, Support and Monitoring. CRC Press, 2016, pp. 279-309.
[25] J. Player, A. Thompson, E. Villaescusa, Dynamic testing of reinforcement systems, 6th international symposium on ground support in mining and civil engineering construction, Cape Town, South Africa, 2008, pp. 597–622
[26] Y. Potvin, D.P. Heal, Dynamic testing of High Energy Absorption (HEA) mesh, Deep Mining 2010- M. Van Sint Jan and Y. Potvin (eds), Perth, Australian Centre for Geomechanics, Australia, 2010, pp. 251-272.
[27] V. Louchnikov, M.P. Sandy, Selecting an optimal ground support system for rockbursting conditions, Eighth International Conference on Deep and High Stress Mining – J Wesseloo (ed.), Australian Centre for Geomechanics, Perth, Australia, 2017, pp. 613-624.
[28] C.C. Li, Energy-absorbing rock bolts. Rock Mechanics and Engineering, Volume 4: Excavation, Support and Monitoring. CRC Press, 2016, pp. 311-336.
[29] R. Masoudi, M. Sharifzadeh, M. Ghorbani, Partially decoupling and collar bonding of the encapsulated rebar rock bolts to improve their performance in seismic prone deep underground excavations, International Journal of Mining Science and Technology, 29(3) 2019, 409-418.
[30] A.J. Jager, Two new support units for the control of rockburst damage. In: Kaiser PK, McCreath DR (eds) Proceedings of the international symposium rock support. Balkema, Rotterdam, 1992, pp. 621–631.
[31] W.D. Ortlepp, J.J. Bornman, N. Erasmus, The Durabar–a yieldable support tendon– design rationale and laboratory results, In: Rockbursts and Seismicity in Mines- RaSiM5, South African Institute of Mining and Metallurgy, 2001, pp. 263–264.
[32] B. Simser, Modified conebolt static and dynamic tests, Noranta Technology Centre Internal Report, Quebec, Canada, 2002.
[33] F. Charette, M. Plouffe, Roofex: results of laboratory testing of a new concept of yieldable tendon, 4th International Seminar on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, Australia, 2007, pp. 395–404.
[34] R. Galler, G.G. Gschwandtner, C. Doucet, Roofex bolt and its application in tunnelling by dealing with high stress ground conditions, In: ITA-AITES World Tunnel Congress, Helsinki, Finland, 2011.
[35] R. Varden, R. Lachenicht, J. Player, A. Thompson, E. Villaescusa, Development and implementation of the Garford Dynamic Bolt at the Kanowna Belle Mine, In: 10th Underground Operators’ Conference, Launceston, Australia, 2008.
[36] R. Wu, J. Oldsen, Development of a new yielding rock bolt- Yield-Lok bolt, In: The 44th US rock mechanics symposium, Salt Lake City, USA, 2010, pp. 10–197
[37] C.C. Li, A new energy-absorbing bolt for rock support in high stress rock masses, International Journal of Rock Mechanics and Mining Sciences, 47(3) (2010) 396-404.
[38] M. He, W. Gong, J. Wang, P. Qi, Z. Tao, S. Du, Y. Peng, Development of a novel energy-absorbing bolt with extraordinarily large elongation and constant resistance, International Journal of Rock Mechanics & Mining Sciences, 67 (2014) 29–42.
[39] https://www.dsiunderground.com.au 
[40] G. Wijk, B. Skogberg, The inflatable rock bolting system, 14th Canadian rock mechanics symposium, Canadian Institute of Mining and Metallurgy, 1982, pp. 106–115.
[41] R. Masoudi, M. Sharifzadeh, Reinforcement selection for deep and high-stress tunnels at preliminary design stages using ground demand and support capacity approach, International Journal of Mining Science and Technology, 28(4) (2018) 573-582.
 [42] K. Terzaghi, Rock defects and loads on tunnel supports. Introduction to tunnel geology, in: Rock tunneling with steel Supports, (eds. R. V. Proctor and T. L. White), 1946, pp. 5- 153.
[43] Ö. Aydan, T. Akagi, T. Kawamoto, The squeezing potential of rock around tunnels: theory and prediction, Rock Mechanics and Rock Engineering, 2 (1993) l37-163.
[44] R.M. Stephenson, M.P. Sandy, Ground control methods in squeezing and rockburst-prone ground in mining- case studies and benchmarking, Eighth International Conference on Deep and High Stress Mining – J Wesseloo (ed.), 2017.
[45] R. Amberg, Der Furka Basistunnel, Projekt und Bauausführung, SIA 24, 1982.
[46] F. Amberg, Vereina Tunnel - Konzept und Baurealisierung, ITA Congress 1997, A.A. Balkema, Rotterdam, Holland, 1997.
[47] F. Anadón, Hard rock bursting phenomena in Maule tunnel (Chile), Proc. I.S.R.M. Workshop "Underground Works under Special Conditions", Madrid, Spain, 2007.
[48] G. Russo, A simplified rational approach for the preliminary assessment of the excavation behavior in rock tunnelling. Tunnels et Ouvrages Souterraines, N. 207, mai-juin. 2008.
[49] B. Rothlisberger, D. Sporri, M. Rehbock, Unexpected difficult ground conditions in the multi-function Station Faido (Gotthard Base Tunnel), Geomechanics and Tunnelling 9(2) (2016).
[50] J. Hadjigeorgiou, E. Karampinos, Design tools for squeezing ground conditions in hard rock mines. Eighth International Conference on Deep and High Stress Mining–J Wesseloo (ed.). Australian Centre for Geomechanics, Australia, 2017, pp. 693-706.
[51] K. Kovari, Tunnelling in squeezing rock, Tunnel 5, 1998, pp. 12–31.
[52] D.F. Malan, F.R.P. Basson, Ultra-deep mining; the increased potential for squeezing conditions, Journal of The South African Institute of Mining and Metallurgy, 98(7) (1998) 353-363.
[53] M.A. Struthers, M.H. Turner, K. Mcnabb, P.A. Jenkins, Rock mechanics design and practice for squeezing ground and high stress conditions at Perseverance Mine, Proceedings of MassMin 2000, Brisbane, Australia, 2000, pp. 755–764.
[54] Y. Potvin, J. Hadjigeorgiou, Ground support strategies to control large deformations in mining excavations, Journal of the South African Institute of Mining & Metallurgy, 108(7) (2008) 397–404.
[55] P. Ferland, H.D. Smith, E. Strom, Ground Support Practices at Peak Gold Mines, Eastern Australia Ground Control Group (EAGCG), 2008.
[56] C. Groccia, M. Cai, A. Punkkinen, Quantifying rock mass bulking at a deep underground nickel mine. International Journal of Rock Mechanics and Mining Sciences, 81(2016) 1-11.
[57] E. Karampinos, Management of Squeezing Ground Conditions in Hard Rock Mines, Ph.D. thesis, University of Toronto, Canada, 2016.
[58] B. Roache, Mining in extreme squeezing conditions at the Henty mine. Ground Support 2016- E. Nordlund, T.H. Jones and A. Eitzenberger (eds), 2016.
[59] D. Saiang, E. Nordlund, Ground support modelling involving large ground deformation: Simulation of field observations–Part 1, Ground Support 2016- E. Nordlund, T.H. Jones and A. Eitzenberger (eds), 2016.
[60] G. Anagnostou, L. Cantieni, Design and analysis of yielding support in squeezing ground, 11th ISRM Congress, The Second Half-Century of Rock Mechanics, Lisbon, Portugal, 2007.
[61] E. Hoek, P. Marinos, N. Kazilis, G. Angistalis, N. Rahaniotis, V. Marinos, Greece’s Egnatia Highway Tunnels, Tunnels and Tunnelling Int., 2006, pp. 32-35.
[62] W. Schubert, Dealing with Squeezing Conditions in Alpine Tunnels, Rock Mech. Rock Engng, 29 (3) (1996) 145-153.
[63] K. Kovari, Method and device for stabilizing a cavity excavated in underground construction. US Patent Appl. 20050191138, 2005.
[64] A. Thut, D. Naterop, P. Steiner, M. Stolz, Tunnelling in squeezing rock-yielding elements and face control, 8th International Symposium on Tunnel Construction and Underground Structures, Lubljana, Slovenia, 2006.
[65] M. John, Die geotechnischen Messungen im Arlbergtunnel und deren Auswirkungen auf das Baugeschehen, Rock Mech Suppl, 5 (1976) 157- 177.
[66] W. Schubert, G. Riedmtiller, Geotechnische Nachlese eines Verbruches-Erkenntnisse und Impulse, in: Proc. 10, Christian Veder Kolloquium, Graz, Austria, 1995.
[67] E. Hoek, P. Marinos, Predicting tunnel squeezing problems in weak heterogeneous rock masses, Tunnels and Tunnelling International, 2000, pp. 45-51.
[68] W. Schubert, Tunnelling in Alpine Fault Zones Excavation and Support Strategies, Fifth International Conference on Case Histories in Geotechnical Engineering, New York, USA, 2004.
[69] M. Keller, Die Beherrschung der Hohlraumverformungen in der Karbonzone (Lötschberg Basistunnel), Swiss Tunnel Congress, Luzern, Vol. 4, Swiss Tunnelling Society, 2005.
[70] R. Pöttler, F. Starjakob, D. Spöndlin, Tunnelling through highly squeezing ground - a case history of the Strenger Tunnel, Austria, 2005.
[71] G. Barla, M. Barla, M. Bonini, D. Debernardi, Lessons learned during the excavation of the Saint Martin La Porte access gallery along the Lyon-Turin Base tunnel, Internationales Symposium Brenner Basistunnel uns Zulaufstrecken, Innsbruck University Press, 2007, pp. 45-52.
[72] E. Mathieu, At the mercy of the mountain, Tunnels & Tunnelling, Focus on Europe, 2008, pp. 21-24.
[73] B. Rothlisberger, D. Sporri, M. Rehbock, Unexpected difficult ground conditions in the multi-function Station Faido (Gotthard Base Tunnel), Geomechanics and Tunnelling, 9 (2) 2016.
AUT Journal of Civil Engineering
Volume 4, Issue 4
December 2020
Pages 557-578

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