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Effects of decoupled charge blasting on rock fragmentation efficiency
Citation
Liang, WM and Liu, H and Yang, XL and Williams, DJ, Effects of decoupled charge blasting on rock fragmentation efficiency, Harmonising rock engineering and the environment : proceedings of the 12th ISRM International Congress on Rock Mechanics, 18-21 Oct. 2011, Beijing, China, pp. 1237-1240. ISBN 978-0-415-80444-8 (2011) [Refereed Conference Paper]
Copyright Statement
Copyright 2012 Taylor & Francis
Official URL: https://www.onepetro.org/conference-paper/ISRM-12C...
Abstract
Laboratory experiments and numerical modelling are conducted to investigate the effects of decoupled charge
blasting on rock fragmentation efficiency. It is concluded that the gap between the explosive and the borehole wall in decoupled
charge blasting decreases the peak of the shock wave, extends the action time, and weakens the loading strain rate, which
correspondingly reduces the crushed zone and improves the explosive energy utilisation ratio.A method is proposed to quantify
the optimal decoupled coefficient range for optimal rock fragmentation in decoupled charge blasting.
Item Details
| Item Type: | Refereed Conference Paper |
|---|---|
| Keywords: | blasting, dynamics, lab testing, numerical modelling, rock failure |
| Research Division: | Engineering |
| Research Group: | Civil Engineering |
| Research Field: | Civil Geotechnical Engineering |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding Knowledge |
| Objective Field: | Expanding Knowledge in Engineering |
| UTAS Author: | Liu, H (Dr Hong Liu) |
| ID Code: | 76196 |
| Year Published: | 2011 |
| Deposited By: | Engineering |
| Deposited On: | 2012-03-01 |
| Last Modified: | 2014-08-06 |
| Downloads: | 21 View Download Statistics |
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