Room-and-Pillar Mining At Devco's Prince Mine

CIM Bulletin, Vol. 71, No. 794, 1978
A. R. MacLean, Director of Mineral Resource Planning, and D. R. Merrier, Manager, Prince Mine, Cape Breton Development Corporation (Coal Division), Sydney, Nova Scotia
Abstract This mine is situated at Point Aconi, Cape Breton, Nova Scotia, and is a replacement for the 100-year-old Princess Colliery. It is a slope mine which is the continuation of a strip mine operation. There are five slopes from the surface driven with Dosco Dintheaders — this marks the first time these machines were used in North America.
There are four room-and-pillar sections, each equipped with a Lee Norse HH106 continuous miner, a "Top Dog" roof bolter and two Wagner diesel Teletrams. There are also two Eimco 913 diesel LHD's, which are used for clean-up in the mines.
This paper describes the mining operations of this 800,000-tpy mine which, in less than a year and a half, has been developed to the stage where four sections are producing coal at the desired rate.
Keywords: Coal mining, Room-and-pillar mining, Underground mining, Devco, Prince Mine, Dosco Dintheaders, Continuous miners, Roof bolters.
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