The evolution of mining methods at Brunswick Mining and Smelting
CIM Bulletin, Vol. 74, No. 825, 1981
N. DUFRESNE Mine Captain, Brunswick Mining and Smelting Corporation Limited Bathurst, New Brunswick
The evolution of mining methods at Brunswick Mining and Smelting shows that, in the case of a large deposit, technology must adapt itself to changing conditions. As problems are encountered, management must modify their approach if they hope to meet production quotas. This search for new and better ways started with the opening of the No. 12 orebody and is still going on today.From large-scale open sloping, the Brunswick Mining and Smelting operation went to transversal cut-and-flll, then to longitudinal cut-and-flll, which is the main mining method now employed. However, to solve certain problems experimenting with Avoca methods was initiated. Rebar grouting and prepinning have also made significant contributions toward securing relatively poor ground in the hanging wall and holding badly fractured backs in wide sloping areas.
Brunswick Mining and Smelting, Underground mining, Sloping, Cut-and-fill mining, Avoca method, Rebars, Grouting, Prepinning, Mechanization.