Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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
Referenced 3D images from inside cavities and behind rings in sublevel caving
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
Montanuniversität Leoben.
LKAB.
Show others and affiliations
2009 (English)In: Rock Fragmentation by Blasting: Proceedings of the 9th Int. Symp. on Rock Fragmentation by Blasting - Fragblast 9, Sept. 2009, Granada Spain / [ed] José A. Sanchidrián Blanco, Boca raton, Fla.: CRC Press, 2009, p. 91-100Conference paper, Published paper (Refereed)
Abstract [en]

Disturbance free fragmentation and flow in sublevel caving (SLC) are desirable as they could lead to an increase in ore recovery and a decrease in waste rock loading and nitrates leakage. This requires a reasonable understanding of the actual rock breakage in semi-confined ring blasting situations, where both the blasted geometry and the breakage itself are hidden. Sometimes there is a chance to inspect the actual conditions, such as in the opening of a new drawpoint and in hang-ups in which cavities exist. For these situations a lightweight mobile camera crane has been constructed for use in the LKAB Kiruna mine. A 3D photogrammetry system has been constructed, which enables the reconstruction of the ring front/cavity as a geo-referenced mesh model with color information. It is remotely operated from a safe distance behind in the drift. The paper first reviews the current drill and blast practice. Then it presents the design, construction and application of the 3D image acquisition system. A case study shows the measurement application and also the evaluation possibilities. So far the system promises to be a valuable tool in increasing the understanding of SLC breakage and flow.

Place, publisher, year, edition, pages
Boca raton, Fla.: CRC Press, 2009. p. 91-100
Keywords [en]
Civil engineering and architecture - Geoengineering and mining engineering
Keywords [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-32881Local ID: 78571280-ab71-11de-8293-000ea68e967bISBN: 978-0-415-48296-7 (print)OAI: oai:DiVA.org:ltu-32881DiVA, id: diva2:1006115
Conference
International Symposium on Rock Fragmentation by Blasting : 13/09/2009 - 17/09/2009
Note
Godkänd; 2009; 20090927 (finn)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

Open Access in DiVA

No full text in DiVA

Authority records BETA

Wimmer, MatthiasOuchterlony, Finn

Search in DiVA

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

Search outside of DiVA

GoogleGoogle Scholar

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 23 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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