A three dimensional model of muckpile formation and grade boundary movement in open pit blasting

Yang R.L. and Kavetsky A. (1990) A three dimensional model of muckpile formation and grade boundary movement in open pit blasting. International Journal of Mining and Geological Engineering, 8 1: 13-34. doi:10.1007/BF00881125


Author Yang R.L.
Kavetsky A.
Title A three dimensional model of muckpile formation and grade boundary movement in open pit blasting
Journal name International Journal of Mining and Geological Engineering
ISSN 0269-0136
Publication date 1990
Sub-type Article (original research)
DOI 10.1007/BF00881125
Volume 8
Issue 1
Start page 13
End page 34
Total pages 22
Publisher Kluwer Academic Publishers
Subject 2216 Architecture
1907 Geology
1111 Nutrition and Dietetics
Abstract Formulation and case studies of a three dimensional kinematic model are presented. The in situ overburden geometry can be simulated accurately and various initiation patterns of blasts can be modelled. The overburden geometry, hole patterns and explosive distribution are all explicit model inputs. Because the effect of explosive properties, rock mass condition and inter-row delay are very difficult to measure in terms of blast performance, these are represented in the model by control parameters which are left for calibration using field data. The output of the model is a three dimensional muckpile shape of any cross section and a contour map of grade distribution within the muckpile. Two case studies are presented which have shown that the model is a valuable tool for optimizing production blasting as well as for controlling grade dilution during blasting.
Keyword Blasting
explosive performance
grade control
muckpile shape
three dimensional model
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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Created: Tue, 28 Jun 2016, 07:01:02 EST by System User