Strategies for minimising and predicting dilution in narrow-vein mines – NVD Method

Stewart, P. C. and Trueman, R. (2008). Strategies for minimising and predicting dilution in narrow-vein mines – NVD Method. In: Narrow Vein Mining Conference 2008 Proceedings. Narrow Vein Mining Conference 2008, Ballarat, Vic, Australia, (153-164). 14-15 October 2008.

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Author Stewart, P. C.
Trueman, R.
Title of paper Strategies for minimising and predicting dilution in narrow-vein mines – NVD Method
Conference name Narrow Vein Mining Conference 2008
Conference location Ballarat, Vic, Australia
Conference dates 14-15 October 2008
Proceedings title Narrow Vein Mining Conference 2008 Proceedings
Place of Publication Carlton, Victoria
Publisher Australasian Institute of Mining and Metallurgy
Publication Year 2008
Sub-type Fully published paper
ISBN 9781920806897
Start page 153
End page 164
Total pages 12
Language eng
Abstract/Summary An improved ability to predict dilution for narrow vein deposits enables more accurate economic comparisons between mechanised longhole stoping and other narrow vein mining methods, as well as reducing uncertainty surrounding dilution estimates for deposits at the prefeasibility/ feasibility stage. This paper proposes narrow vein dilution prediction and minimisation strategies for both greenfield sites and operating mines, respectively. The narrow vein dilution method (NVD method) is a tool for more accurately predicting longhole narrow vein dilution. The method is based on a new concept called benchmark stoping width. Benchmark stoping width is based on probabilistic analysis of overbreak distributions from a typical longhole narrow vein mine. The premise for the NVD method is that dilution associated with longhole stoping can be predicted using the benchmark stoping width. In addition to dilution prediction, the NVD method also includes strategies for narrow vein dilution minimisation generally, including; filling, cablebolting, stress relaxation, extraction sequencing and blast overbreak.
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Conference Paper
Collection: W.H. Bryan Mining Geology Research Centre
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Created: Tue, 08 Mar 2011, 14:04:08 EST by Diep Tran on behalf of WH Bryan Mining and Geology Centre