Mercier-Langevin, F & Hudyma, MR 2007, 'The Development and Implementation of a Comprehensive Seismic Risk Management Plan at Agnico-Eagle's LaRonde Mine', in Y Potvin (ed.), Proceedings of the Fourth International Seminar on Deep and High Stress Mining
, Australian Centre for Geomechanics, Perth, pp. 221-232.
The LaRonde mine is characterised by a foliated, highly deformable rock mass. Previous work has
documented the influence of foliation on rock mass behaviour and the resulting deformation observed in the
vicinity of excavations. However, as the spacing of the foliation planes increases within the mine there is an
observed transition in behaviour, from high deformation to seismogenic. Consequently, significant levels of
seismicity are recorded in areas of competent rock. These can occasionally be accompanied by rockburst
Since the introduction of a mine-wide seismic system in 2003, seismic data have been employed along with
field observations in order to develop site-specific strategies to address seismic risk as it evolves in the mine.
The resulting mitigation measures have been refined on a continuous basis in order to minimise workforce
exposure to seismic risk. Currently, seismic risk management is an integral part of mining at LaRonde.
Recently the mine went a step beyond “traditional” seismic risk management methods by developing a
formal “Seismic Risk Management Plan”. This document serves as a compilation of rockbursting and
seismicity issues at LaRonde and how these issues are being addressed by mine management. The resulting
plan has been constructed in such a way that its key components and their application can be verified by
quantifiable internal and external audits.
ACG (2000) Working Safely in Active Ground Conditions. Australian Centre for Geomechanics, Mine Seismicity and
Rockburst Risk Management Project Training Presentation.
Agnico-Eagle (2007) Agnico-Eagle Reports Strong Quarterly Earnings and Record Cash Flows; 19% Increase in Gold
Reserves to Record Level., Press Release, Available from <www.agnico-eagle.com>, February 21, 2007.
Andrieux, P. and Hadjigeorgiou, J. (2006) External Review of the 1 April 2006 Rockburst in the 164-20-W at LaRonde
Mine. Technical memorandum, Itasca Consulting Canada Inc. and Georock Inc., 17 p.
Heal, D., Potvin, Y. and Hudyma, M. (2006) Evaluating Rockburst Damage Potential in Underground Mining,
Proceedings 41st Symp. On Rock Mechanics, June 17-21 2006, Golden, Colorado.
Hudyma, M. and Brummer, R.K. (2006) Mining Induced Seismicity Review – Agnico-Eagle Mines Limited. Technical
memorandum (Itasca Consulting Canada Inc.), 196 p.
Hudyma, M. (2007) Review of Seismic Events of December 11th, 2006 and January 11th, 2007 on 224L at LaRonde
Mine, Technical memorandum (Itasca Consulting Canada Inc.), 61 p.
Mercier-Langevin, F. and Turcotte, P. (2007) Evolution of Ground Support Practices at Agnico-Eagle’s LaRonde
Division – Innovative Solutions to High Stress Yielding Ground,. Proceedings 1st Canada-US Rock Mechanics
Symposium., May 27-31 2007, Vancouver, Canada.
Mercier-Langevin, F. (2006) Événement sismique avec projection 164-20-W. Internal technical memorandum,
Engineering Department, LaRonde Division, 19 p.
Simser, B., Andrieux, P., Mercier-Langevin, F., Parrott, T. and Turcotte, P. (2006) Field behaviour and Failure Modes
of Modified Conebolts at the Craig, LaRonde and Brunswick Mines in Canada. Proceedings 3rd International
Seminar on Deep and High Stress Mining, October 2-4 2006, Quebec City, Canada.
The Development and Implementation of a Comprehensive Seismic
Risk Management Plan at Agnico-Eagle’s LaRonde Mine F. Mercier-Langevin, M.R. Hudyma
232 Deep Mining 07, Perth, Australia