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- W2621000596 abstract "Abstract The flow behavior of the ore and waste significantly affect the dilution in sublevel caving (SLC) mines. Drill and blast issues are identified as having a substantial impact upon SLC material flow. In the paper, blast-induced fragmentation in SLC was numerically investigated using the LS-DYNA code. A method was presented to evaluate fragmentation based on the damage description and a fragment identification routine implemented in the LS-PREPOST (a pre- and post-processing tool of LS-DYNA). The effects of the delay time and the primer position on fragmentation were investigated. The results indicated that a long delay time gives a finer fragmentation for the cases discussed in the paper. The results also showed that the middle primer and the top primer in SLC can give a fine fragmentation. The limitations of numerical modelling were also discussed." @default.
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- W2621000596 date "2017-09-01" @default.
- W2621000596 modified "2023-09-29" @default.
- W2621000596 title "Numerical modelling for blast-induced fragmentation in sublevel caving mines" @default.
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- W2621000596 doi "https://doi.org/10.1016/j.tust.2017.05.030" @default.
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