Mining in Manitoba


Cut & Fill Mining


Engineering Considerations


Opening a New Cut

Regular Mining Advance

Special Procedures



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  The purpose of mechanized cut and fill mining is to safely extract relatively high grade ore from an irregular orebody with minimum dilution.

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In cut and fill mining, the ore is excavated in horizontal in horizontal slices, starting at the bottom (sill) of a stope and advancing upwards (crown).

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The ore is removed from the stope with mechanized mobile equipment. When a slice of ore has been mined, hydraulically placed sandfill is poured into the mined out area and serves both as a floor when the next slice is mined out and as support for the walls.

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Each horizontal slice (or cut) is mined 8 - 9 feet thick, by downbreak blasting, with about 10 feet advance each blast. This downbreaking is commonly called breasting.