Advances in blasting practices through the accurate quantification of blast fragmentation

M. A. Lowery, John M Kemeny, K. Girdner

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A strategy for proactive blast planning to improve the postblast fragmentation size has been implemented at the Phelps Dodge Morenci Mine. This strategy was developed in specific phases that include stabilization of blasting practices, systematic changes in blast design and quantification of the size distribution of blasts. Implementing this new strategy would not be possible without an accurate method for quantifying the postblast fragment size distribution. The Split image-processing system is now being used to assess fragmentation size using muck pile digital imaging taken on a daily basis and an online fragmentation analysis system installed at the primary crushers. Drilling and blasting variables and fragmentation size are entered into a database, spatially evaluated in a geographic information system and subsequently utilized for mine planning purposes. Using this strategy, significant improvements have been made in postblast fragmentation and continued improvements are expected in the next several years.

Original languageEnglish (US)
Pages (from-to)55-61
Number of pages7
JournalMining Engineering
Volume53
Issue number10
StatePublished - Oct 2001
Externally publishedYes

Fingerprint

Blasting
blasting
fragmentation
Planning
Crushers
Geographic information systems
Piles
Drilling
Image processing
Stabilization
Imaging techniques
systems analysis
image processing
stabilization
pile
drilling
planning

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

Cite this

Advances in blasting practices through the accurate quantification of blast fragmentation. / Lowery, M. A.; Kemeny, John M; Girdner, K.

In: Mining Engineering, Vol. 53, No. 10, 10.2001, p. 55-61.

Research output: Contribution to journalArticle

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