Predicting rock fragmentation based on drill monitoring: A case study from Malmberget mine, Sweden
Fragmentation analysis is an essential part of the optimization process in any mining operation. The costs of loading, hauling, and crushing the rock are strongly influenced by the size distribution of the blasted rock. Several direct and indirect methods are used to analyse or predict fragmentation...
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Luleå tekniska universitet, Geoteknologi
2022
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ftluleatu:oai:DiVA.org:ltu-80805 2023-05-15T17:09:15+02:00 Predicting rock fragmentation based on drill monitoring: A case study from Malmberget mine, Sweden Manzoor, Sohail Danielsson, M. Söderström, E. Schunnesson, Håkan Gustafson, Anna Fredriksson, H. Johansson, Daniel 2022 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80805 https://doi.org/10.17159/2411-9717/1587/2022 eng eng Luleå tekniska universitet, Geoteknologi Ramböll, Sweden AFRY, Sweden The Southern African Institute of Minning and Metallurgy Journal of the Southern African Institute of Mining and Metallurgy, 2225-6253, 2022, 122:3, s. 155-165 orcid:0000-0003-3791-4431 orcid:0000-0002-5347-0853 orcid:0000-0002-5165-4229 http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80805 doi:10.17159/2411-9717/1587/2022 ISI:000785742700007 Scopus 2-s2.0-85131238807 info:eu-repo/semantics/openAccess rock fragmentation measurement while drilling quick rating system partial least squares regression sublevel caving Geotechnical Engineering Geoteknik Article in journal info:eu-repo/semantics/article text 2022 ftluleatu https://doi.org/10.17159/2411-9717/1587/2022 2022-10-25T20:58:42Z Fragmentation analysis is an essential part of the optimization process in any mining operation. The costs of loading, hauling, and crushing the rock are strongly influenced by the size distribution of the blasted rock. Several direct and indirect methods are used to analyse or predict fragmentation, but none is entirely applicable to fragmentation assessment in sublevel caving mines, mainly because of the limitations imposed by the underground environment and the lack of all the required data to adequately describe the rock mass. Over the past few years, measurement while drilling (MWD) data has emerged as a potential tool to provide more information about the in-situ rock mass. This research investigated if MWD can be used to predict rock fragmentation in sublevel caving. The MWD data obtained from a sublevel caving mine in northern Sweden were used to find the relationship between rock fragmentation and the nature of the rock mass. The loading operation of the mine was filmed for more than 12 months to capture images of loaded load-haul-dump (LHD) buckets. The blasted material in those buckets was classified into four categories based on the median particle size (X50). The results showed a strongercorrelation for fine and medium fragmented material with rock type (MWD data) than coarser material. The paper presents a model for prediction of fragmentation, which concludes that it is possible to use MWD data for fragmentation predict ion. Validerad;2022;Nivå 2;2022-04-07 (hanlid); Funder: Centre for Advanced Mining and Metallurgy (CAMM 2 ), Luleå University of Technology Article in Journal/Newspaper Luleå Luleå Luleå Malmberget Northern Sweden Luleå University of Technology Publications (DiVA) Journal of the Southern African Institute of Mining and Metallurgy 122 3 1 11 |
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English |
topic |
rock fragmentation measurement while drilling quick rating system partial least squares regression sublevel caving Geotechnical Engineering Geoteknik |
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rock fragmentation measurement while drilling quick rating system partial least squares regression sublevel caving Geotechnical Engineering Geoteknik Manzoor, Sohail Danielsson, M. Söderström, E. Schunnesson, Håkan Gustafson, Anna Fredriksson, H. Johansson, Daniel Predicting rock fragmentation based on drill monitoring: A case study from Malmberget mine, Sweden |
topic_facet |
rock fragmentation measurement while drilling quick rating system partial least squares regression sublevel caving Geotechnical Engineering Geoteknik |
description |
Fragmentation analysis is an essential part of the optimization process in any mining operation. The costs of loading, hauling, and crushing the rock are strongly influenced by the size distribution of the blasted rock. Several direct and indirect methods are used to analyse or predict fragmentation, but none is entirely applicable to fragmentation assessment in sublevel caving mines, mainly because of the limitations imposed by the underground environment and the lack of all the required data to adequately describe the rock mass. Over the past few years, measurement while drilling (MWD) data has emerged as a potential tool to provide more information about the in-situ rock mass. This research investigated if MWD can be used to predict rock fragmentation in sublevel caving. The MWD data obtained from a sublevel caving mine in northern Sweden were used to find the relationship between rock fragmentation and the nature of the rock mass. The loading operation of the mine was filmed for more than 12 months to capture images of loaded load-haul-dump (LHD) buckets. The blasted material in those buckets was classified into four categories based on the median particle size (X50). The results showed a strongercorrelation for fine and medium fragmented material with rock type (MWD data) than coarser material. The paper presents a model for prediction of fragmentation, which concludes that it is possible to use MWD data for fragmentation predict ion. Validerad;2022;Nivå 2;2022-04-07 (hanlid); Funder: Centre for Advanced Mining and Metallurgy (CAMM 2 ), Luleå University of Technology |
format |
Article in Journal/Newspaper |
author |
Manzoor, Sohail Danielsson, M. Söderström, E. Schunnesson, Håkan Gustafson, Anna Fredriksson, H. Johansson, Daniel |
author_facet |
Manzoor, Sohail Danielsson, M. Söderström, E. Schunnesson, Håkan Gustafson, Anna Fredriksson, H. Johansson, Daniel |
author_sort |
Manzoor, Sohail |
title |
Predicting rock fragmentation based on drill monitoring: A case study from Malmberget mine, Sweden |
title_short |
Predicting rock fragmentation based on drill monitoring: A case study from Malmberget mine, Sweden |
title_full |
Predicting rock fragmentation based on drill monitoring: A case study from Malmberget mine, Sweden |
title_fullStr |
Predicting rock fragmentation based on drill monitoring: A case study from Malmberget mine, Sweden |
title_full_unstemmed |
Predicting rock fragmentation based on drill monitoring: A case study from Malmberget mine, Sweden |
title_sort |
predicting rock fragmentation based on drill monitoring: a case study from malmberget mine, sweden |
publisher |
Luleå tekniska universitet, Geoteknologi |
publishDate |
2022 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80805 https://doi.org/10.17159/2411-9717/1587/2022 |
genre |
Luleå Luleå Luleå Malmberget Northern Sweden |
genre_facet |
Luleå Luleå Luleå Malmberget Northern Sweden |
op_relation |
Journal of the Southern African Institute of Mining and Metallurgy, 2225-6253, 2022, 122:3, s. 155-165 orcid:0000-0003-3791-4431 orcid:0000-0002-5347-0853 orcid:0000-0002-5165-4229 http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80805 doi:10.17159/2411-9717/1587/2022 ISI:000785742700007 Scopus 2-s2.0-85131238807 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.17159/2411-9717/1587/2022 |
container_title |
Journal of the Southern African Institute of Mining and Metallurgy |
container_volume |
122 |
container_issue |
3 |
container_start_page |
1 |
op_container_end_page |
11 |
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1766065251659284480 |