The strength of hard-rock pillars
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Martin, C.D ;Maybee, W.G
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Article
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2000
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Elsevier Science
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English
โ 506 KB
Observations of pillar failures in Canadian hard-rock mines indicate that the dominant mode of failure is progressive slabbing and spalling. Empirical formulas developed for the stability of hard-rock pillars suggest that the pillar strength is directly related to the pillar width-to-height ratio an