SciELO - Scientific Electronic Library Online

vol.109 issue3Modelling financial risk in open pit mine projects: Implications for strategic decision-makingConsolidation, fragmentation and the structure of the mining industry author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Journal of the Southern African Institute of Mining and Metallurgy

On-line version ISSN 2411-9717
Print version ISSN 0038-223X

J. S. Afr. Inst. Min. Metall. vol.109 n.3 Johannesburg Mar. 2009




Strategies and tactics to control seismic risks in mines



Y. Potvin

Australian Centre for Geomechanics, Australia




The risk associated with mining induced seismicity is one of the major threats to the safety and sustainability of deep underground mines. This paper describes techniques that allow site practitioners to efficiently control such risks in mines. The proposed approaches rely on ground support to strategically control seismic risk nd reentry time to tactically control this risk. The strategic approach is based on the detailed understanding of past seismicity to ascertain the seismic hazard of individual sources throughout the mine. This approach also relies on assessing the potential damage that these sources can induce on nearby excavations using the xcavation vulnerability potential (EVP) and rockburst damage potential (RDP) concepts proposed by Heal et al. (2006). It is then possible to investigate how to reduce the risk of experiencing damaging seismicity in mine drives by locally enhancing the ground support system. The tactical approach relies on a proposed ethodology to estimate reliable re-entry times or exclusion periods based on the seismic decay following blasting. Some examples of how these techniques have been applied in Australian mines are given.



“Full text available only in PDF format”




HUDYMA, M.R. PhD thesis in preparation, The University of Western Australia, Perth, Australia. 2008.         [ Links ]

HUDYMA, M. and POTVIN, Y. Seismic Hazard in Western Australian Mines, Journal of the South African Institute of Mining and Metallurgy, vol. 104, no. 5, Johannesburg, South Africa. 2006.         [ Links ]

HUDYMA, M.R., HEAL, D., and MIKULA, P. Seismic monitoring in mines-old technology-new applications, Proceedings 1st Australasian Ground Control in Mining Conference, The University of NSW, Sydney, 10-13 November 2003, pp. 201-218.         [ Links ]

HEAL, D. KCGM Mount Charlotte mine-analysis of recent seismic activity, ACG internal research report, Mine Seismicity and Rockburst Risk Management Project Phase 3. 2007.         [ Links ]

HEAL, D., POTVIN, Y., and HUDYMA, M. Evaluating rockburst damage potential in underground mining, Proceedings 41st U.S. Symposium on Rock Mechanics (USRMS): 50 Years of Rock Mechanics-Landmarks and Future Challenges, Golden, Colorado, June 17-21. 2006.         [ Links ]

KAISER, P.K., MCCREATH, D.R., and TANNANT, D.D. Rockburst Support Handbook, Geomechanics Research Centre, Laurentian University, Canada. 1996.         [ Links ]

KAISER, P.K., TANNANT, D.D., MCCREATH, D.R., and JESENAK, P. Rockburst damage assessment procedure, Rock Support in Mining and Underground Construction, P.K. Kaiser and D.R. McCreath (eds.), Balkema, Rotterdam, 1992. pp. 639-647.         [ Links ]

MIKULA, P. The practice of seismic management in mines-How to love your seismic monitoring system, Proceedings Sixth International Symposium on Rockburst and Seismcity in Mines (RASIM6), Australian Centre for Geomechanics, ISBN 0-9756756-1-3, Y. Potvin and M. Hudyma (eds.), 2005. pp. 21-31.         [ Links ]

POTVIN, Y., HADJIGEORGIOU, J., and STACEY T.R. Challenges in Deep and High Stress Mining, Australian Centre for Geomechanics, ISBN 978-0-9804185-1-4, Perth, Australia. 2007.         [ Links ]

POTVIN, Y., HUDYMA, M., and JEWELL, R.J. Rockburst and seismic activity in underground Australian mines-an introduction to a research project. GeoENG 2000, Melbourne, Australia. 2000.         [ Links ]

SAMRASS Codebook, 20 August 2008.         [ Links ]

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License