Maintaining a successful loss prevention program

Keywords: Safety, Underground mines
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Publication: CIM Bulletin
Author(s): B. Morrison
Keywords: Underground mining, Haulage systems, Electric haulage systems, Kiruna Electric System
Issue: 921
Volume: 82
Year: 1989
Text
Publication: CIM Bulletin
Author(s): M.E. Sirkka
Keywords: Underground mining, Bulk mining methods, Mining methods, LHD, Electric LHD, Technical development, Electrical mobile equipment
Issue: 921
Volume: 82
Year: 1989
Text
Summary: This paper presents an overview of Alberta Oil Sands Technology Research Authority's in situ oil sands recovery project at its underground test facility near Fort McMurray. It covers the rationale for horizontal wells drilled from tunnels below the oil sands, the tunnel layout, the drilling program, and the recovery process and facilities.
Publication: CIM Bulletin
Author(s): J.C. O'Rourke, J.A. Hasten
Keywords: Underground testing, Tunnelling, Drilling, Oil sands
Issue: 921
Volume: 82
Year: 1989
Text
Summary: An investigation into the problem of atmospheric fog in Canadian mines is described. Fog occurs in several mines and the reduced visibility can result in the closure of workings for safety reasons. Information on the mechanisms of fog formation are discussed and the methods for improving conditions are reviewed with their relative costs.
Publication: CIM Bulletin
Author(s): A.E. Hall, S.B.V. Stewart
Keywords: Underground mining, Fog, Underground environment, Mine ventilation, Air quality control, Environmental control
Issue: 921
Volume: 82
Year: 1989
Text
Summary: High narrow backfills of significant strike length approach the stress conditions associated with a free standing wall but this lower bound design approach is not considered efficient for earth structures. This paper considers the design of high narrow backfills using upper bound limit analysis, retaining wall theory with backfill arching and centrifuge model tests. Complex toe support situations pertaining to operational factors at Falconbridge's Lockerby Mine are investigated. It is shown...
Publication: CIM Bulletin
Author(s): R.J. Mitchell
Keywords: Rock mechanics, Underground mining, Modelling, Centrifuge modelling, Backfills
Issue: 921
Volume: 82
Year: 1989
Text
Summary: This paper considers four aspects of autogenous grinding. Part 1 discusses statements on power efficiency of autogenous grinding compared to conventional crushing and grinding systems. It also demonstrates how high-power efficiency can be obtained from autogenous grinding systems. Part 2 considers a simple method of testing ores to determine the type of autogenous plant which can treat these ores on a commercial basis. A comparison of testing for simple small plants vs large plants or complex...
Publication: CIM Bulletin
Author(s): A.R. MacPherson
Keywords: Autogenous grinding, Grinding systems, Power efficiency, Processing plants, Systems design
Issue: 921
Volume: 82
Year: 1989
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Summary: The most cost-effective method of placement of the high-strength fill used in the Cannon Mine's overhand cut-and-fill bench slopes was determined to be truck haulage. Constraints imposed by the mine layout dictated the use of a truck which could dump its load in a fifteen-foot high drift. The Dux Teledumper truck was selected as the most suitable unit for this application based upon operational and maintenance parameters which included a telescoping, tilting dump box; large load capacity; and...
Publication: CIM Bulletin
Author(s): J. Baz-Dresch
Keywords: Underground mining, Haulage systems, Maintenance, Equipment, Truck haulage, Backfill
Issue: 921
Volume: 82
Year: 1989
Text
Summary: The composition and the possible utilization of a slag sample from a nickel smelter operation in the Sudbury district were investigated. The sample containing 0.136% Ni, 0.10% Co and 0.29% Cu could be characterized as afayalite slag with a sulphide bearing glass matrix. While thefayalite contains most of the Co, Ni is enriched within both sulphides and fayalite. Cu is only present in higher amounts in sulphides or metallic droplets. This, as well as the small grain sizes of the mineral...
Publication: CIM Bulletin
Author(s): Gerhard Heinrich
Keywords: Metallurgy, Nickel smelter slags, Metal distribution, Benefic-iation, Pressure leaching, Construction materials
Issue: 921
Volume: 82
Year: 1989
Text
Summary: Atomic Energy of Canada Limited is constructing an Underground Research Laboratory (URL) as part of a comprehensive program to evaluate the concept of nuclear fuel waste disposal deep in crystalline rock formations. Careful blasting methods have been used to minimize damage to the excavation surfaces. Good wall quality is desirable in any excavation. In excavations required for nuclear waste disposal, the objective will be to minimize blast-induced fractures which may complicate the sealing...
Publication: CIM Bulletin
Author(s): R.F. Favreau
Keywords: Blast design, Controlled blasting, Blast simultation, Nuclear waste disposal, Smooth wall blasting, Engineered excavation, Blast damage, Burst-out velocity, Tension wave, Brisance, Crack front, Permeability, Fragmentation, Half barrels
Issue: 921
Volume: 82
Year: 1989
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