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- W2000471109 abstract "Mining with backfill has been the subject of several international meetings in recent years and a considerable research effort is being applied to improve both mining economics and ore recovery by using backfill for ground support. Classified mill tailings sands are the most commonly used backfill material but these fine sands must be stabilized before full ore pillar recovery can be achieved. Normal portland cement is generally used for stabilization but the high cost of cement prohibits high cement usage. This paper considers the use of reinforcements in cemented fill to reduce the cement usage. It is concluded that strong cemented layers at typical spacings of about 3 m in a low cement content bulk fill can reinforce the fill and reduce the overall cement usage. Fibre reinforcements introduced into strong layers or into bulk fills are also known to be effective in reducing cement usage. Some development work is needed to produce the ideal type of anchored fibre in order to realize economic gains from fibre-reinforced fills. Key words: mining, backfilling, ground support, soil–cement, fibre reinforcement." @default.
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- W2000471109 date "1987-05-01" @default.
- W2000471109 modified "2023-10-01" @default.
- W2000471109 title "Stability of reinforced cemented backfills" @default.
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- W2000471109 doi "https://doi.org/10.1139/t87-024" @default.
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