Abstract
Ouchterlony (The Case for the Median Fragment Size as a Better Fragment Size Descriptor than the Mean, Rock Mech Rock Eng, 2015. doi:10.1007/s00603-015-0722-1) argues that the median is preferred over the mean as a measure of central tendency of the rock fragmentation size distribution produced by blasting. This discussion suggests that neither is favoured over the other. Indeed, for distributions where both exist, they may be found in terms of each other, either by an analytical expression or by numerical calculation.
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References
Cunningham C (1983) The Kuz-Ram model for prediction of fragmentation from blasting. In: Holmberg R, Rustan A (eds) Fragblast 1, 1st international symposium on rock fragmentation by blasting. Lulea University of Technology, Sweden, pp 439–453
Cunningham C (1987) Fragmentation estimations and the Kuz-Ram model—four years on. In: Fourney W, Dick R (eds) Fragblast 2, 2nd international symposium on rock fragmentation by blasting, Society of experimental mechanics. Society of experimental mechanics, Bethel, pp 475–487
Cunningham C (2005) The Kuz-Ram fragmentation model—20 years on. In: Holmberg R (ed) 3rd EFEE world conference on explosives and blasting. EFEE, UK, pp 201–210
Koshelev E, Kuznetsov V, Sofronov S, Chernikov A (1971) Statistics of the fragments forming with the destruction of solid by explosion. J Appl Mech Tech Phys 12(2):244–256
Kuznetsov V (1973) The mean diameter of the fragments formed by blasting rock. Sov Min Sci 9(2):144–148
Langhaar H (1951) Dimensional analysis and theory of models. Wiley, New York
Ouchterlony F (2009) A common form for fragment size distributions from blasting and a derivation of a generalised Kuznetsov’s x50 equation. In: J. Sanchidrian (ed) Fragblast 9, Proceedings of 9th international symposium on rock fragmentation by blasting, Taylor and Francis Group, London, p 199–219
Ouchterlony F (2015) The case for the median fragment size as a better fragment descriptor than the mean. Rock Mech Rock Eng. doi:10.1007/s00603-015-0722-1
Sanchidrian J, Segarra P, Lopez LM, Ouchterlony F, Moser P (2012) On the performance of truncated distributions to describe rock fragmentation. In: Sanchidrian J, Singh A (eds) Measurement and analysis of blast fragmentation. Taylor and Francis Group, London, pp 87–96
Spathis A (2004) A correction relating to the analysis of the original Kuz-Ram model. Int J Rock Fragm Bl 8(4):201–205
Spathis A (2012) A three parameter rock fragmentation distribution. In: Sanchidrian J, Singh A (eds) Measurement and analysis of blast fragmentation. Taylor and Francis Group, London, pp 73–86
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Spathis, A.T. Discussion of “The Case for the Median Fragment Size as a Better Fragment Size Descriptor than the Mean” by Finn Ouchterlony, Rock Mech Rock Eng, 2015. doi:10.1007/s00603-015-0722-1. Rock Mech Rock Eng 49, 335–337 (2016). https://doi.org/10.1007/s00603-015-0878-8
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DOI: https://doi.org/10.1007/s00603-015-0878-8