Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
What does the fragment size distribution of blasted rock look like?
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
2005 (English)In: Brighton Conference Proceedings: Third European Federation of Explosives Engineers (EFEE) World Conference on Explosives and Blasting / [ed] R. Holmberg, European Federation of Explosives Engineers , 2005, 189-199 p.Conference paper, Published paper (Refereed)
Abstract [en]

Rock fragmented by blasting follows a different size distribution than the commonly used Rosin-Rammler distribution, especially in the fines range. Sieving data from many different blasting operations have led to a new distribution function, which can describe the fragmentation over the range 1-500 mm quite accurately. It is called the Swebrec© function and works also for crushed rock. It contains three parameters, the median fragment size x50, the maximum fragment size xmax and an undulation parameter b, which is shown practically to be a function of the other two. The fit to the sieved data is often , which is shown practically to be a function of the other two. The fit to the sieved data is often better than r2 = 0.995 over 2-3 orders of magnitude of fragment size. The Swebrec function could be used to estimate the complete size distribution from a sample in the fines range or the fines tail from coarse range data. It is used to construct a blast fragmentation model, the KCO model, which improves greatly on the Kuz-Ram model. In a first application it is shown how, in a given production situation, it is possible to predict the change in average fragmentation that is required to increase (or decrease), for example, the road base fraction 0-32 mm in the muckpile by a desired amount.

Place, publisher, year, edition, pages
European Federation of Explosives Engineers , 2005. 189-199 p.
Keyword [en]
Civil engineering and architecture - Geoengineering and mining engineering
Keyword [sv]
Samhällsbyggnadsteknik och arkitektur - Geoteknik och gruvteknik
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-37653Local ID: bbc13dd0-8abc-11db-8975-000ea68e967bISBN: 0-9550290-0-7 (print)OAI: oai:DiVA.org:ltu-37653DiVA: diva2:1011151
Conference
EFEE World Conference on Explosives and Blasting : 14/09/2005 - 16/09/2005
Note
Godkänd; 2005; 20061208 (ysko)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved

Open Access in DiVA

fulltext(597 kB)45 downloads
File information
File name FULLTEXT01.pdfFile size 597 kBChecksum SHA-512
2ef8d86e20dedd66c88266c28bcfa32c243150459312d8bc3595efd9779c1e371102599d5555f550f70cd16ac5f917093d50a6ad05b4ab4bf601524cd7ad8883
Type fulltextMimetype application/pdf

Authority records BETA

Ouchterlony, Finn

Search in DiVA

By author/editor
Ouchterlony, Finn
By organisation
Mining and Geotechnical Engineering
Other Civil Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 45 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 44 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf