Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Referenced 3D images from inside cavities and behind rings in sublevel caving
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
Montanuniversität Leoben.
LKAB.
Visa övriga samt affilieringar
2009 (Engelska)Ingår i: 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, s. 91-100Konferensbidrag, Publicerat paper (Refereegranskat)
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.

Ort, förlag, år, upplaga, sidor
Boca raton, Fla.: CRC Press, 2009. s. 91-100
Nationell ämneskategori
Annan samhällsbyggnadsteknik
Forskningsämne
Gruv- och berganläggningsteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-32881Lokalt ID: 78571280-ab71-11de-8293-000ea68e967bISBN: 978-0-415-48296-7 (tryckt)OAI: oai:DiVA.org:ltu-32881DiVA, id: diva2:1006115
Konferens
International Symposium on Rock Fragmentation by Blasting : 13/09/2009 - 17/09/2009
Anmärkning

Godkänd; 2009; 20090927 (finn)

Tillgänglig från: 2016-09-30 Skapad: 2016-09-30 Senast uppdaterad: 2022-10-20Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Person

Wimmer, MatthiasOuchterlony, Finn

Sök vidare i DiVA

Av författaren/redaktören
Wimmer, MatthiasOuchterlony, Finn
Av organisationen
Geoteknologi
Annan samhällsbyggnadsteknik

Sök vidare utanför DiVA

GoogleGoogle Scholar

isbn
urn-nbn

Altmetricpoäng

isbn
urn-nbn
Totalt: 77 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf