An overview of R&D in narrow-vein mining at Universite Laval

Abstract
The limited development and application of new technologies to narrow-vein mining is currently impeding progress in the industry to a point where productivity, working conditions and operating costs have reached a critical stage in many Canadian mines.
 
 
In an effort to foster the emergence and application of new technologies, Universite Laval, together with other organizations, has carried out a R&D project focussed on the need of identifying new development possibilities and of facilitating the transfer of technology in matters related to underground mining methods and machinery.
The first phase of the study consisted of an in-depth assessment of current practices and problems in narrow-vein mining. The second phase was a state-of-the-art survey of mining methods and equipment, together with proposed modifications and innovations. The third phase of the project concerns the experimental development as well as the principal application of various proposed technologies.
This paper presents an overview of the organizational, technical and strategic considerations which guided the University group and it serves as well to introduce a newly-published brochure, entitled "Underground Mining Techniques of Vein Deposits", which summarizes such work to date. More specifically, a perspective of technological developments applicable to narrow-vein mining is presented.
Keywords: Underground mining, Narrow-vein mining, Research and Development, Mining methods, Equipment.
Full Access to Technical Paper
PDF version for $20.00
Search
Sort By:  Relevance
Showing results 1 - 7
Text
Summary: Finance Minister Paul Martin's first budget disappointed almost everyone. The business sector was disappointed at the somewhat feeble attempt to grapple with the country's deficit. The mining industry was disappointed by tax proposals regarding mine reclamation that fall short of the industry's needs. Has anybody ever been happy with a federal budget?
Publication: CIM Bulletin
Author(s): Robert B. Parsons
Issue: 980
Volume: 87
Year: 1994
Text
Summary: This paper reports the results of a finite element study of the geothermal heatflow into dry mine airways. For isotropic and unsteady state conditions the heatflow into mine airways is studied for a range of surface heat transfer coefficients between rock and air, and age of the airway. Dimensionless temperature gradient values are presented in tables for different values ofBoit and Fourier numbers and the results are compared with Starfleld tables and Gibson algorithm. It is found that...
Publication: CIM Bulletin
Author(s): Kollu S. Rao, B.S. Sastry, B. Misra
Keywords: Geothermal heatflow, Underground mining.
Issue: 980
Volume: 87
Year: 1994
Text
Summary: Polynuclear aromatic hydrocarbon (PAH) levels were measured in underground mines in the vicinity ofdiesel vehicles equipped with several types of emission control hardware. In general, the emission control devices appeared to reduce PAH levels, but the companion mutagen study suggested that the reduction might not always be beneficial. All underground PAH concentrations were below the threshold at which a significant impact on health might be expected, but recent animal exposure studies have...
Publication: CIM Bulletin
Author(s): J.P. Mogan, E.D. Dainty
Keywords: Diesels, Underground mining, Polynuclear aromatic hydrocarbons, Emission control, Health, Safety.
Issue: 980
Volume: 87
Year: 1994
Text
Summary: Blasting in high sulphide content ores presents at least two major safety considerations: (1) compatibility of the explosives with the ore while resident in the borehole; and (2) introduction of a flame and shock producing explosive into this environment, while minimizing the risk of reactive ignition in the chemical reaction products/sulphide dust cloud resulting from the detonation. This paper will discuss only the second consideration, i.e. post detonation reactivity.
The ETI (Explosives...
Publication: CIM Bulletin
Author(s): M. Rispin, J.R. Dalton
Keywords: Safety, Sulphide dust explosions, Underground mining.
Issue: 980
Volume: 87
Year: 1994
Text
Summary: Une methodologie de prevision des couts de forage en galeries est proposee. Cette methodologie a ete elaboree pour les perfora-trices pneumatiques manuelles. Elle est composes de quatre modeles: (1) un modele de penetration conduisant a la prevision du temps de forage; (2) un modele d'estimation de la duree de vie desfour-nitures; (3) un modele d'estimation de la quantite d'energie con-sommee; et (4) un modele de calcul de couts. Elle fait intervenir la resistance en compression uniaxiale de...
Publication: CIM Bulletin
Author(s): D.E. Gill, , A. Piche, S. Dufresne
Keywords: Forage en galeries, Exploitation souterraine.
Issue: 980
Volume: 87
Year: 1994
Text
Summary: Within the next few years, underground mobile equipment will be partially automated. Mining methods will integrate more and more automation. Such an evolution will be possible only if adequate underground communication systems are developed. This is expected due to the available competence in Canadian telecommunication, to the economic pressure on the Canadian mining industries for international competitiveness and to the social changes where a better working environment (i.e. less accidents)...
Publication: CIM Bulletin
Author(s): Marcel St-Amant, Pierre Montrueil
Issue: 980
Volume: 87
Year: 1994
Text
Summary: An underground mine fire can seriously threaten the lives of all personnel in the mine. This fact makes fire emergency planning a high priority in the mining industry. A fire emergency plan includes a means of warning miners of the existence of a fire, and the need to evacuate or retreat to a place of refuge. The warning alarm must be fast and must reach all miners, regardless of their location or work activity. Means of fire warning are varied, and include such methods as stench, flashing...
Publication: CIM Bulletin
Author(s): Kenneth E. Hjelmstad, William H. Pomroy
Keywords: Underground mining, Safety, Mine fires, Fire emergency, Electromagnetic transmission.
Issue: 980
Volume: 87
Year: 1994
Powered by Coveo Enterprise Search