Solutions to pillar design in plastically behaving rocks

CIM Bulletin, Vol. 77, No. 868, 1984
D. MRAZ, P.Eng. Mraz Project Consultants Saskatoon, Saskatchewan
Abstract In certain instances, rocks around underground excavations behave as a plastic mass. This paper offers several solutions to predicting the mode of plastic flow around cavities and designing mining pillars where plastic conditions exist.
Keywords: Rock mechanics, Strata control, Pillar design, Plastic rocks, Pillars, Salt rocks
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