Suorineni, FT & Malek, F 2014, 'The Sudbury Basin stress tensor – myth or reality?', in M Hudyma & Y Potvin (eds), Proceedings of the Seventh International Conference on Deep and High Stress Mining
, Australian Centre for Geomechanics, Perth, pp. 615-625.
Sudbury Basin is host to many underground mines, most of which are seismically active. Some of these mines, e.g. Creighton Mine, have been in operation for over a century and can be said to be matured. Others, e.g. Glencore Xstrata Nickel Rim South Mine, have just been opened and can be classified as young. Several in situ stress measurements have been performed in these mines over the years. Mine seismicity and rockburst research has been very active in the Sudbury Basin since 1984 following the then Falconbridge Mine disaster. Stress tensor is one of the critical inputs in numerical models for the assessment of excavation performance, support demand and rockbursts and seismicity potential. It is also an important input in closed-form solutions for similar purposes. Over the years, several technical reports have referred to a Sudbury Basin stress tensor. In a recent review study of stress measurements in the Sudbury Basin as a means of validating the so called Sudbury Basin stress tensor, the supposed stress tensor source could be hardly identified. It is important to recognise that in situ stress measurement errors remain significantly high and would be unacceptable in any other branch of engineering (Hoek 1994). To improve confidence in these measurements several carefully measured data are required. For this reason the Sudbury Basin stress tensor if it existed would have had to be updated with the addition of the several stress measurements in the Basin in recent times following its development. Strangely, this is hardly the case. The paper draws the attention of rock engineers to the myth of the Sudbury Basin stress tensor. Based on review of available Vale stress measurement database and interviews of past prominent ground control engineers who have worked in the Basin, including Phil Oliver (pers. comm.) and Dr G Swan (pers. comm.) suggests a plausible, generic, Sudbury Basin stress tensor. The developed stress tensor compares very favourably with what is known from experience in the Basin. The authors give credit to Vale for its continuing effort in stress measurements within the Basin.
Arjang, B & Herget, G 1997, ‘In situ ground stresses in the Canadian hardrock mines: an update’, International Journal Rock Mechanics and Mining Sciences, vol. 34, no. 3/4, pp. 1-16.
Canadian Mining Industry Research Organization 1995, Canadian Rockburst Handbook, Canadian Mining Industry Research Organization, Sudbury.
Clayton, C 2002, ‘Managing geotechnical risk’, IGT Seminar, Zurich, webinar.
Grabinsky, MW, Curran, JH & Bawden, WF 1997, ‘Interaction between stress, mine geometry and rock mass behaviour at a Canadian Shield mine’, CIM Bulletin, vol. 90, no. 1013, pp. 45-51.
Henning, JG & Suorineni, FT 2001, Numerical modelling of the 120 orebody mining sequence, Report submitted to Dunn Harding, INCO Ltd., Mines Technical Services.
Herget, G 1988, Stresses in rock, A.A. Balkema, Rotterdam.
Hoek, E 1994, ‘The challenge of input data for rock engineering’, Letter to the editor, ISRM News Journal, vol. 2, no. 2 pp. 23-24.
Malek, F, Suorineni, FT & Larsen, J 2005, ‘Orepass performance monitoring – North Mine 1600 OP case study’, Proceedings of the Maintenance Engineering/Mine Operators Conference, Canadian Institute of Mining and Metallurgy, Westmount,on CD-ROM.
Malek, F, Suorineni, FT, & Vasak, P 2009, ‘Geomechanics Strategies for rockburst management at Vale Inco Creighton Mine’, in M Diederichs & G Grasselli (eds), Proceedings of the 3rd CANUS Rock Mechanics Symposium, Canadian Institute of Mining and Metallurgy, Westmount.
Malek, F, Trifu, C, Suorineni, FT, Espley, S & Yao, M 2008, ‘Management of high stress and seismicity at Vale Inco Creighton Mine’, Proceedings of the 42nd US Rock Mechanics Symposium and 2nd US–Canada Rock Mechanics Symposium, American Rock Mechanics Association, Alexandria, pp. 1069-1076.
Maloney, SM, Kaiser, PK & Vorauer, A 2006, ‘A re-assessment of in situ stresses in the Canadian Shield’, Proceedings of the 41st US Symposium on Rock mechanics: 50 Years of Rock Mechanics – landmarks and Future Challenges, American Rock Mechanics Association, Alexandria.
Martin, CD 1993, ‘Strength of massive Lac du bonnet granite around underground openings, PhD thesis, University of Manitoba, Winnipeg.
Morrison, DM 1993, ‘Seismicity in the Sudbury area mines’, in PR Young (ed.), Proceedings of the 3rd International Symposium on Rockbursts and Seismicity in Mines, A.A. Balkema, Rotterdam, pp. 379-382.
Morrison, DM & Galbraith, JE 1990, ‘A case history of Inco’s Cooper Cliff North Mine’, Proceedings of the 31st US Symposium on Rock Mechanics, A.A. Balkema, Rotterdam, pp. 51-58.
Morrison, RBK 1942, ‘Report on the rockburst situation in Ontario mines’, Canadian Institute of Mining and Metallurgy, vol. 45.
Natural Resources Canada 2014, Map of the Sudbury Structure, Natural Resources Canada, viewed 18 August 2014,
Oliver, PH, Wiles, T, MacDonald, P & O’Donnell, D 1987, ‘Rockburst Control Measures at Inco’s Creighton Mine’, Proceedings of the 6th Conference on Ground Control in Mining, University of West Virginia, West Virginia, pp. 79-90.
Rocscience inc. 2012, Dips: Graphical and Statistical Analysis of Orientation Data, Rocscience inc., Toronto,
Suorineni, FT 2012, Copper Cliff Mine (CCM) Stress Tensor Development, reported submitted to Stantec Consulting Ltd.
Suorineni, FT & Thibodeau, D 2013, ‘Support selection for rapid drift development with drill and blast – Methodology and a case study’, Rapid Drift Development Conference, International Mining, Sydney.
Suorineni, FT, Kaiser, PK, Mgumbwa, JJ & Thibodeau, D 2011, ‘Mining of orebodies under shear loading – Part 1: Case histories’, Transactions of the Institution of Mining and Metallurgy (Section A): Mining Technology, vol. 120, no. 3, pp. 137-147.
Vasak, P & Suorineni, FT 2010, Mining-induced seismic periodicity and major rockburst occurrences, report submitted to D Thibodeau, Manager of Strategic Rock Mechanics, Canada Operations, Vale Ltd.
Vasak, P, Giovanni, G, Cai, M & Suorineni, F 2006, Creighton Hazard Assessment Techniques Calibration, report submitted to Inco Creighton Mine, 48 pp.
Vasak, V, Suorineni, FT, & Verma, A 2004, Identification of seismically active structures for hazard assessment at Creighton Mine, report prepared by MIRARCO Geomechanics Research Centre, Sudbury, for INCO Technology Centre.
Villaescusa, E, Machuca, L, Windsor, C, Simser, B & Carlisle, S 2009, ‘Stress measurements at great depth at Craig-Onaping Mines’, Proceedings of the 6th International Conference & Exhibition on Mass Mining: MassMin2012, Canadian Institute of Mining, Metallurgy and Petroleum, Westmount.
Wiles, T 2013, Map3D, Mine Modelling Pty Ltd, Mt Eliza,