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Optimisation of Rock Disintegration Based on Acoustic Background of Drilling Machine
By J Fut=
The rotary drilling of rocks is widespread technology in mining and in tunnelling. The paper describes the results of research by aim to find relationships between optimal drilling and sound signal of
Jan 1, 2003
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Review of the Flotation Circuit at the Laronde Concentrator
By J. Robitaille, P. Cousin
"Agnico-Eagle Mines Ltd, Laronde Division, is a gold operation processing ore containing copper and zinc. Copper is recovered as a concentrate prior to gold cyanidation.Copper concentrate grade was im
Jan 1, 1995
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L?application Du Prri Au Secteur Minier
By Josée Dartois
En 1988, à l?instar de plusieurs états du monde industrialisé, le Québec décidait d?accélérer la cadence de l?assainissement des rejets industriels et lançait un programme intégré de réduction de la p
Nov 1, 2002
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Gîtes de wollastonite, province tectonique de Grenville, Quebec
By G. J. Simandl, H. -L. Jacob, S. Paradis, G. Valiquette
"Nos travaux de terrain dans le Grenville, effectués dans le cadre d'un projet d'inventaire des gîtes de wollastonite, ont démontré qu'il existe un secteur exceptionnellement favorable
Jan 1, 1990
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Early shaft reef removal at Beatrix No. 3 Vertical Shaft
By J. W. Klokow, S. L. Mulder
Early removal of the shaft reef is usually considered necessary on deep level South African gold mines to avoid damaging stress build-up associated with traditional shaft-protection pillars. In the ca
Jan 1, 2003
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Performance and Monitoring of the Louvicourt Mine Tailings Disposal Area
By Michel R. Julien, Michel Lemieux, Jean Cayouette, Daniel Talbot
"The Louvicourt Mine located near Val d’Or, Quebec has been in operation since 1994. It produces copper and zinc concentrates. The tailings generated from the ore processing operations have a strong n
Jan 1, 2004
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Carte d' interprétatlon géochirnique par pondération
By Magella Pelletier
"IntroductionDepuis une vingtaine d'année, les nombreux travaux de géochimie effectués par l'industrie privée et les milieux gouvemementaux ont permis:• de découvrir de nombreuses zones miné
Jan 1, 1987
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Numerical modelling for the design of shortwall powered support units on the 2 seam at Matla Coal
By J. W. Latilla, J. J. van Wijk
In late 1997 a request was received to assist with determining the powered support unit (shield) load capacities for the planned 2 seam short wall. This project had a number of aspects which made it a
Jan 1, 2003
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Projet Niocan d?exploitation de Gisements de Niobium dans la Carbonatite d?Oka
By René Dufour
Jusqu?à son acquisition par MM René Dufour et Alain Robin en 1994, les claims miniers et les droits de surface de la propriété étaient détenus depuis 1953 par la société Québec Columbium, une filiale
May 1, 2003
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A design methodology for mechanised stoping with stable support pillars at depth in the Bushveld Complex
By D. A. Spencer, L. J. Gardner
In light of the apparent productivity benefits provided by mechanised stoping, Impala Platinum Limited commissioned a study to investigate its possible implementation for mining reserves located 1200
Jan 1, 2003
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Shortwall facebreak beneath a dolerite sill—learning points from a recent event at Matla Coal mine
By J. W. Latilla, J. J. van Wijk
A running facebreak ahead of the powered support units occurred on the number 4 seam at Matla Coal’s number 3 shaft (Matla 3) in April and May 2002.Very difficult mining conditions were experienced fo
Jan 1, 2003
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Strength of model rock masses with discontinuous joints
By Van Sint JanM., M. Prudencio
ABSTRACT We report the results of a model-testing program to evaluate the strength characteristics of non-persistent joints. We describe the conditions under which new tensile cracks generate and
Jan 1, 2003
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Corrélation génétique entre les roches granitiques et les dépôts de columbo-tantalite d?Issia, Centre-Ouest de la Côte d?Ivoire
By Benjamin A. Allou
La seule production de columbo-tantalite réalisée en Côte d?Ivoire est effectuée dans les éluvions et alluvions du gisement d?Issia, localisé au Centre- Ouest de la Côte d?Ivoire. Même si un lien dire
May 1, 2003
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Paste Fill Design at the Louvicourt Mine
By Pierre Lacombe
"The operation of the Louvicourt Mine will have to rely on stringent grade control and on the optimization of the amount of blocked ore made available per given development effort. All of the above be
Jan 1, 1995
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Une Corrélation Génétique entre les Roches Granitiques, et les Dépôts Éluvionnaires, Colluvionnaires et Alluvionnaires de Columbo-Tantalite d'Issia, Centre-Ouest de la Côte d'Ivoire
By Robert Yobou, Jacques Naho, Benjamin A. Allou, Jacques Carignan, Huan-Zhang Lu, Jayanta Guha, Koffi Pothin
"Résumé - Les seules productions de columbo-tantalite en Côte d'Ivoire sont effectuées dans les éluvions, colluvions et alluvions d'Issia, au Centre-Ouest de la Côte d'Ivoire. Même si u
Jan 1, 2005
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Study of the effects of shaft pillar extraction on a vertical shaft located in highly stratified and poor quality rock masses
By G. du T. Judeel
An investigation was carried out to determine whether a numerical model could be constructed that would produce results that realistically represent actual ground deformations in and around a vertical
Jan 1, 2003
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Deep Exploration of the "Brunswick Horizon", Bathurst District Northern New Brunswick
By J. J. Hussey
"Abstract-The ""Brunswick Horizon"" an informally named ore-bearing unit near the top of the Nepisiguit Falls Formation in the Ordovician Tetagouche Group, hosts the Brunswick No. 6 and No. 12 base-me
Jan 1, 1992
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Strength, Deformability, and Micromechanics of Brittle Fracture in a Crystalline Rock Under True Triaxial Compressive Stresses
By B. Haimson
A new loading apparatus was fabricated and used to conduct true-triaxial compression tests on KTB amphibolite, a crystalline basement rock. Tests in dry jacketed samples reveal that the intermediate p
Jan 1, 2003
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Agnico-Eagle Division Laronde ? Agrandissement du concentrateur à 4500 T/J
By Jean Robitaille
La découverte du gisement du puits Penna a nécessité une révision complète de tous les circuits du concentrateur Laronde pour permettre, premièrement, l?adaptation du procédé à la nouvelle minéralogie
May 1, 2001
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Le gisement d'uranium de Cigar Lake: Decouverte et caracteristiques générales
By K. Schimann, H. D. Knipping, J. P. Fouques
"RESUMELe gisement d 'uranium de Cigar Lake, dans la région de l'Athabasca au nord du Saskatchewan, fut découvert en mai 1981 par Cogema Canada Ltée, opérant pour Ie compte de la ""Waterbury
Jan 1, 1986