Grenon, M, Boudreau, C, Bruneau, G & Caumartin, R 2015, 'Statistical characterisation of intact rock properties at a Canadian underground mining project', in Y Potvin (ed.), Proceedings of the International Seminar on Design Methods in Underground Mining
, Australian Centre for Geomechanics, Perth, pp. 351-366, https://doi.org/10.36487/ACG_rep/1511_21_Grenon
At the early stages of an underground mining project in the Canadian arctic, two successive field and laboratory campaigns were undertaken to evaluate intact rock properties (tensile strength and uniaxial compressive strength (UCS). All tests were performed according to the International Society for Rock Mechanics (ISRM) suggested methods. Intact rock properties were evaluated for several rock types. The obtained results were compared to target levels of confidence associated with different stages of a mining project. This was done using various statistical analysis methods. The results obtained for the different rock types are presented and discussed. A discussion is also provided on the level of confidence required for permanent versus temporary openings at underground mines. The approach can also be used as a tool to identify geotechnical drilling targets for subsequent characterisation campaigns.
Bewick, RP, Amann, F & Kaiser, PK 2015, ‘Interpretation of UCS test results for engineering design’, Proceedings of the 13th International Congress of Rock Mechanics Montreal, Canada.
Brown, ET (ed.) 1981, Rock characterization, testing & monitoring — ISRM suggested methods, Pergamon Press, Oxford.
Gill, DE, Corthésy, R & Leite, MH 2003, Les valeurs pratiques des propriétés mécaniques des roches, report, no. EPM-RT-2003-05, École Polytechnique de montréal, Montreal, QC. [In French]
Gill, DE, Corthésy, R & Leite, MH 2005, ‘Determining the minimal number of specimens for laboratory testing of rock properties’, Engineering Geology, vol. 78, no. 1-2, pp. 29-51.
Joint Ore Reserves Committee 2004, JORC Code: Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves, Joint Ore Reserves Committee, South Carlton.
Montgomery, DC & Runger, GC 2011, Applied Statistics and Probability for Engineers, 5th edn, John Wiley & Sons, Inc., Hoboken, NJ.
Read, J & Stacey, P 2009, Guidelines for open pit slope design, CRC Press, Boca Raton, FL.