Development of benchmark stoping widths for longhole narrow-vein stoping

Stewart, P., Trueman, R. and Lyman, G. (2007) Development of benchmark stoping widths for longhole narrow-vein stoping. Institute of Materials, Minerals and Mining. Transactions. Section A: Mining Technology, 116 4: 167-175. doi:10.1179/174328608X318270


Author Stewart, P.
Trueman, R.
Lyman, G.
Title Development of benchmark stoping widths for longhole narrow-vein stoping
Journal name Institute of Materials, Minerals and Mining. Transactions. Section A: Mining Technology   Check publisher's open access policy
ISSN 1474-9009
1743-2863
Publication date 2007
Sub-type Article (original research)
DOI 10.1179/174328608X318270
Volume 116
Issue 4
Start page 167
End page 175
Total pages 9
Place of publication Yorks, United Kingdom
Publisher Maney
Language eng
Abstract In narrow vein mining it is often not possible to limit stope width to the vein width when utilising blasting for rock breakage. A probabilistic benchmarking method is used to estimate benchmark stability stoping widths and benchmark average stoping width for three commonly used narrow vein longhole blast patterns. Average stoping widths for inline, staggered and dice-5 blast patterns have been estimated at 1˙3, 1˙5 and 1˙7 m respectively. Average stoping width can be used to assess planned and unplanned dilution. Additionally, a concept termed the benchmark stability stoping width has been defined and quantified for the three blasting patterns. Stability stoping widths for inline, staggered and dice-5 have been estimated at 1˙6, 2˙0 and 2˙1 m respectively. Narrow vein stopes within these limits after blasting can be regarded as stable.
Keyword Overbreak
Benchmarking
Dilution
Stoping
Narrow vein
Q-Index Code C1
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
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Created: Tue, 26 Jul 2011, 10:20:08 EST by Ms May Balagaize on behalf of Julius Kruttschnitt Mineral Research Centre