Canada Department of Mines and Technical Surveys, 1988
CANMET has undertaken, since 1985, a major research thrust into the subject of surface crown pillars. In order to respond to the void of knowledge existing, a...
Canada Department of Mines and Technical Surveys, 1988
The efficiency of access boring machines must be scientifically described. Until now, even though some of these machines have been used in hard rock settings,...
Canada Department of Mines and Technical Surveys, 1988
Sheared terrains with weak schists, are common in Canadian mine settings and around near surface openings. This presentation describes typical ground control...
Canada Department of Mines and Technical Surveys, 1989
In 1985, a joint project between the Niobec mine, CANMET and the CRM was undertaken to study the following aspects: mine stability to date, evaluation of the...
Canada Department of Mines and Technical Surveys, 1989
In 1985, a joint project between the Niobec mine, CANMET and the CRM was undertaken to study the following aspects: mine stability to date, evaluation of the...
Canada Department of Mines and Technical Surveys, 1987
This report outlines observations based on a short visit to the Eldrich mine. Although the site has been generally characterized as a result of this tour, more...
Canada Department of Mines and Technical Surveys, 1987
The Canadian mining industry is familiar with the complete recovery of surface crown pillars/rock masses. Pillar removal has been made from surface and from...
Canada Department of Mines and Technical Surveys, 1987
Diamond drilling techniques have not been useful in providing representative, undisturbed samples of geotechnical material. Often, core recovery is very low...
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