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ROCK FRAGMENTATION ASSESSMENT USING THE IMAGE ANALYSIS METHOD: QUALITY OF A BLAST IN SURFACE MINING

A. Sami, M. A. - Pour, S. Khoshrou

First published: 2007DOI pendingView metrics

Abstract

Checking the quality of blasting is considered an essential matter in surface mining, and requires measuring objective parameters. One of these parameters is the results of the blasted product. Numerous fragmentation “measuring” systems have been developed and marketed, based on image-processing. In this study, the GoldSize system was used to determine the size distribution of rock fragments in Sarcheshmeh Copper complex mine, Iran. The effects of size of rock samples and imaging method on image analysis are investigated. Then, results of image analysis compared with screen analysis for calibrating the Mass and Sieve Shift factors in software for different rock types in the case study to being able to measure the size distribution with high preciseness without the need of screen analysis for future uses. Investigation indicated that by increasing the size of rock samples and using the expanded imaging method rather than massive one, the results of image analysis will be close to the screen analysis. The Mass factor obtained 1.9 and 1.8 for ore and waste rocks and the Sieve Shift factor obtained 0.7 and 1 for ore and waste rocks respectively.

Publication details

Title
ROCK FRAGMENTATION ASSESSMENT USING THE IMAGE ANALYSIS METHOD: QUALITY OF A BLAST IN SURFACE MINING
Authors
A. Sami, M. A. - Pour, S. Khoshrou
Proceedings
7th International Scientific Conference - SGEM2007
Publisher
SGEM Scientific GeoConference
Year
2007
Pages
Not available yet
SWS Citekey
Sami200711
ISSN
1314-2704
ISBN
954-918181-2
Language
en
Publication type
Conference Paper
Keywords
GeologyRock fragmentationimage analysissize distributionsurface mining
References7

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