Mine ventilation: Waste heat recovery

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Mots clés : Underground mining;Ventilation;Heating costs;Energy savings;Heat exchangers;Variable frequency drives;Heat recovery;Propane burners
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Texte
Sommaire: The Geomechanics Research Centre at Laurentian University in Sudbury, Canada, has undertaken a five-year research program into the design of support appropriate for controlling damage caused by rockbursts. Rockburst damage mechanisms in Canadian hardrock mines are reviewed and a support design approach is presented. Each element in a support system performs a reinforcing, holding, or retaining function. The desirable load-displacement characteristics for elements in burst-resistant support...
Publication: CIM Bulletin
Auteur(s): Rock mechanics, Research and development, Support designs.
Mots clés: Paper reviewed and approved for publication by the Rock Mechanics and Strata Control Committee of CIM.
Numéro: 998
Volume: 89
Année: 1996
Texte
Sommaire: The feasibility assessment of a mineral deposit requires the construction of a geomechanical model of rock mass properties, for the purpose of preliminary mine design. The Noranda Technology Centre has been involved in the development of geomechanical models for several mineral deposits at the feasibility stage. Each model is constructed through intact rock testing, geotechnical core logging,
geotechnical mapping and rock mass classification. Rock mechanics principles are used to develop...
Publication: CIM Bulletin
Auteur(s): Simon Nickson, Dave Ecobichon, Michel Leclerc, Éric Côté
Mots clés: Rock mechanics, Feasibility studies, Geomechanical modelling.
Numéro: 998
Volume: 89
Année: 1996
Texte
Sommaire: A set of new blast damage criteria has been developed, with special reference to blasthole mining operations, for assessing damage by incorporating the vibration level, rock properties, site characteristics and the effects of ground support systems. The main objective of this work was to provide a database with reasonable accuracy for use in optimizing blast design, numerical analysis and ground control expert system module development.
The new damage criteria allow one to estimate the degree...
Publication: CIM Bulletin
Auteur(s): T.R. Yu, S. Vongpaisal
Mots clés: Blast damage criteria, Blast damage index, Underground blasting, Blasthole mining, Dynamic tensile strength, Blast design.
Numéro: 998
Volume: 89
Année: 1996
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