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info on gold mining pillars

info on gold mining pillars

Room and pillar mining is commonly done in flat or gently dipping bedded ore bodies Pillars are left in place in a regular pattern while the rooms are mined out In many room and pillar mines the pillars are taken out starting at the farthest point from the stope access allowing the roof to collapse and fill in the allows a greater recovery as less ore is left behind in pillars

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