Shoring of mine tunnels Abstract Numerous accidents occur every year in Quebec’s underground mines, often due to an inadequate support structure, based on a faulty characterization of the bedrock. Three researchers from Laval University have developed a computer model that makes it possible to produce a three-dimensional simulation of the discontinuity lattice of the bedrock, using discontinuity readings through crevices made in the ground. More versatile than traditional geomechanical indicators, the new model provides a better characterization of the bedrock. Based on this model, the authors propose a support design method that takes into account the size of the boulders along the excavation walls. This tool should help mining engineers design a support structure that can prevent unstable boulders from falling, thereby providing miners with a safer working environment. Produced Under this Project Scientific Reports Support of underground mining excavations Research Report: R-268 Scientific Publications Rational reinforcement design for jointed rockHadjigeorgiou J., Grenon M.Source : Canadian Institute of Mining, Metallurgy and Petroleum Annual General Meeting (104th : 29 April-3 May, 2001 : Québec, Canada), 2002Développements récents portant sur la caractérisation géomécanique des massifs rocheuxGrenon M., Hadjigeorgiou J.Source : Colloque en contrôle de terrain de l'Association Minière du Québec (15e : juin, 2000 : Val d'Or, Québec), 2000Drift Reinforcement Design Based on Discontinuity Network ModellingGrenon M., Hadjigeorgiou J.Source : International Journal of Rock Mechanics and Mining Sciences vol. 40, no 6, p. 833-845Open Stope Stability Using 3D Joint NetworksGrenon M., Hadjigeorgiou J.Source : Rock Mechanics & Rock Engineering, vol. 36, no 3, pp.183-208Rational Design Methodology For Thin Sprayed On LinersHadjigeorgiou J., Grenon M.Source : in 2nd International Seminar on Surface Support Liners: Thin Sprayed Liners, Shotcrete & Mesh (2nd : July 29-31, 2002 : Sandton, South Africa). (s.l), South African Institute of Mining and Metallurgy, 2002, Section 12, pp. 16Drift Stability in Moderately Jointed RockGrenon M., Hadjigeorgiou J., Harrison J. P.Source : CIM Bulletin, vol. 94, no 1050, p. 245-302Stope Design Based on Realistic Joint NetworksGrenon M., Hadjigeorgiou J.Source : in MassMin2000. (s.l.), Australian Institute of Mining and Metallurgy, 2000, Publublication Series 7/2000, pp. 765-771Geomechanical analysis using simulated 3D natural joint networksHadjigeorgiou J., Grenon M.Source : in 9th International Symposium on Mine Planning and Equipment Selection (9th : November 6-9, 2000 : Athens, Greece), 2000, p. 303-307Conception du Soutènement à l’aide de la modélisation des réseaux de discontinuitésGrenon M., Hadjigeorgiou J.Source : in 16th Annual Conference of the Tunnelling Association of Canada (16th : 2000), 2000, p. 147-154Evaluation of deterministic ground support design for underground excavationsHadjigeorgiou J., Lessard J. F., Bruneau G., Grenon M.Source : in 16th Annual Conference of the Tunnelling Association of Canada (16th : 2000), 2000, p. 195-202An Investigation of Drift Stability in Moderately Jointed Rock MassGrenon M., Hadjigeorgiou J., Harrison J. P., Banas R.Source : in 4th North American Rock Mechanics Symposium (4th : July 31-August 1, 2000 : Seattle, Washington), 2000, p. 967-973Conception des excavations souterraines à l’aide de la modélisation des réseaux de discontinuitésGrenon M.Source : Thèse de Ph.D. Ste-Foy, Université Laval, 2000 Additional Information Type: Project Number: 0095-0060 Status: Completed Year of completion: 2001 Research Field: Mechanical and Physical Risk Prevention Team: John Hadjigeorgiou (Université Laval)