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Conference Proceedings

Third International Symposium on Rock Fragmentation by Blasting, Brisbane, August 1990

Conference Proceedings

Third International Symposium on Rock Fragmentation by Blasting, Brisbane, August 1990

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A Proposed Standard for the Objective Measurement of Muck Pile Profiles

Blast Engineers frequently use the terminology "the blast showed good heave", or even "the heave was better this time". It is reasonably obvious that "good" and "better" are not the best terms to use. It is also noted that any variation in the data can be misleading. The author proposes a more precisely defined and objective set of measures as tried and tested in a project in 1988. Simple objective measurements of a muck pile profile can measure 1. distance thrown 2. spread of material 3. heaping of material 4. skewness, or bias in the heaping 5. rotation of the mass This technique enables one to compare the profiles from different blasts without relying on subjective experience or judgement. Simple, artificial profiles will be presented to illustrate the problems of description; and then application of the measurement techniques to these profies will be discussed with physical interpretations. The mathematical techniques will be presented, and results of the application of the techniques to real data collected during research carried out at Baimsdale in Victoria, will be presented as illustration. The use of these techniques in mathematical modelling will be discussed.
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  • A Proposed Standard for the Objective Measurement of Muck Pile Profiles
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  • Published: 1990
  • PDF Size: 0.32 Mb.
  • Unique ID: P199005003

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