Rock Mechanics Challenges in Underground Construction and Mining

Authors: Kaiser, PK; Kim, B-H

DOI https://doi.org/10.36487/ACG_repo/808_83

Cite As:
Kaiser, PK & Kim, B-H 2008, 'Rock Mechanics Challenges in Underground Construction and Mining', in Y Potvin, J Carter, A Dyskin & R Jeffrey (eds), SHIRMS 2008: Proceedings of the First Southern Hemisphere International Rock Mechanics Symposium, Australian Centre for Geomechanics, Perth, pp. 23-38, https://doi.org/10.36487/ACG_repo/808_83

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Abstract:
The underground construction and mining industry are facing many geomechanics challenges. This keynote address presents an overview of some practical challenges, recent developments and some new technical opportunities. In mining, going deeper, increasing safety standards, and aiming for high productivity demands engineering to maximise value. In underground construction, geological complexities and mechanisation demand better integration of engineering to ensure ease of construction. Lack of engineering for constructability when tunnelling in weak or brittle rock at depth often leads to unnecessary delays and extra costs. Furthermore, brittle failing rock at depth poses unique problems as stress-driven failure processes often dominate the tunnel behaviour. Such failure processes can lead to shallow unravelling or to strainbursting modes of instability that cause difficult conditions for tunnel constructors. This paper summarises lessons learned during the construction of deep Alpine tunnels and highlights implications that are of practical importance with respect to constructability. Special attention is given to issues of rock behaviour identification and to the selection of appropriate rock properties for underground construction in brittle failing ground.

References:
Bieniawski, Z.T. (1989) Engineering Rock Mass Classification, Wiley, New York.
Cai, M., Kaiser, P.K., Tasaka, Y. and Minami, M. (2006) Determination of residual strength parameters of jointed rock masses using GSI system, International Journal of Rock Mechanics and Mining Sciences, 44(2), pp. 247–265.
Corkum, A.G. and Martin, C.D. (2004) Analysis of a rock slide stabilized with a toe-berm: a case study in British Columbia, Canada, International Journal of Rock Mechanics and Mining Sciences, 41(7), pp. 1109–1121.
Diederichs, M.S., Carvalho, J.L. and Carter, T.G. (2007) A modified approach for prediction of strength and post yield behaviour for high GSI rock masses in strong, brittle ground, 1st Canada–U.S. Rock Mech. Symposium, pp. 249–257.
Diederichs, M.S., Kaiser, P.K. and Eberhard, K.E. (2004) Damage initiation and propagation in hard rock and influence of tunnelling induced stress rotation, International Journal of Rock Mechanics and Mining Sciences. 41, pp. 785–812.
Diederichs, M.S. (2003) Rock fracture and collapse under low confinement conditions, Rocha Medal Recipient, Rock Mechanics and Rock Engineering., 36(5), pp. 339–381.
Einstein, H.H. (1996) Tunnelling in difficult Rock – swelling behaviour and identification of swelling rocks, Rock Mechanics and Rock Engineering, 29(3), pp. 113–124; see also: Einstein, HH.; Bischoff, N. und Hofmann E. (1972). Das Verhalten von Stollensohlen in quellendem Mergel. Untertagbau Symposium, Luzern, pp. 296–312.
Grob, H. (1972) Schwelldruck im Belchentunnel, Internationales Symposium für Untertagbau, Luzern, pp. 99–109.
Hoek, E. (2007) Practical Rock Engineering, 2nd Edition. Rocscience Inc.
Hoek, E. and Bray, J.W. (1981) Rock Slope Engineering, London: Institution of Minerals and Metals.
Hoek, E. (1968) Brittle Failure of Rock, In Rock Mechanics and Engineering Practice, John Wiley and Sons Ltd. London, pp. 99–124.
Martin, C.D. and Maybee, W.G. (2000) The strength of hard-rock pillars. International Journal of Rock Mechanics and Mining Sciences , 37(8), pp. 1239–1246.
Martin, C.D., McCreath, D.R. and Maybee, W.G. (2000) Design approaches for hard-rock pillars, 53rd Canadian Geotechnical Conference, Bitech Publishers Ltd., Richmond 1, pp. 291–298.
Martin, C.D., Kaiser, P.K. and McCreath, D.R. (1999) Hoek–Brown parameters for predicting the depth of brittle failure around tunnels, Canadian Geotechnical Journal, 36(1), pp. 136–151.
Martin, D. (1997) The effect of cohesionloss and stress path on brittle rock strength. Canadian Geotechnical Journal, 34, pp. 698–725.
Morgenstern, N.R. and Price, V.E. (1965) The analysis of the stability of general slip surfaces, Geotechnique 15(1), pp. 79–93.
Kaiser, P.K. (2007) Rock mechanics challenges and opportunities in underground construction and mining, Keynote lecture, 1st Canada–U.S. Rock Mechanics Symposium, on CD, 47 p.
Kaiser, P.K. (2006) Rock mechanics consideration for construction of deep tunnel in brittle ground, Keynote lecture, Asia Rock Mechanics Symposium, Singapore, 12 p., on CD.
Kaiser, P.K., Vasak, P. and Suorineni, F.T. and Thibodeau, D. (2005) New dimensions in seismic data interpretation with 3-D virtual reality visualization in burst-prone grounds. Keynote Address to 6th RaSiM6, Perth, Australia, 33–47.
Kaiser, P.K. (2006) Tunnel stability in highly stressed, brittle ground – Rock mechanics considerations for Alpine tunnelling, Geologie und Geotechnik der Basistunnels, Keynote lecture at GEAT’05 Symposium, Zürich, Switzerland, pp. 183–201.
Kaiser, P.K., Diederichs, M.S., Martin, C.D., Sharp, J. and Steiner, W. (2000) Underground works in hard rock tunnelling and mining, GeoEng 2000, Technomic Publ. Co., pp. 841–926.
Kaiser, P.K., McCreath, D.R. and Tannant, D.D. (1996) Canadian Rockburst Support Handbook, Mining Research Directorate, Sudbury, Canada, 314 p.; see also Drift support in burst-prone ground, CIM Bulletin, 89(998), pp. 131–138.
Sarma, S.K. (1979) Stability analysis of embankments and slopes, ASCE Journal of Geotechnical Engineering Division, 105(GT12), pp. 1511–1524.
Yong, S., Kaiser, P.K., Löw, S. and Corrado, F. (2008) The Role of heterogeneity on the development of excavation-induced fractures in the Opalinus Clay, Canadian Geotechnical Conference, Edmonton, 8 p. (in press).




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