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Constraints Of Room And Pillar Mining

Mar 01 2020018332The room and pillar method is very old method and applied to horizontal or nearly horizontal deposits that has been adapted and refined over the years Hartman and Mutmansky 2002In room and pillar mining is a selfsupporting method some pillars of ore are left in place to support the rock that encompasses the ore body while the remaining ore is extracted Hamrin 1997.

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