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Conference Proceedings

Third Large Open Pit Mining Conference, Mackay, August 1992

Conference Proceedings

Third Large Open Pit Mining Conference, Mackay, August 1992

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Designer - A Spreadsheet for Determining the Most Cost-Effective Explosive for an Open Cut Blast

Blast design involves many engineering constraints and objectives. Some of the more important include the implementation costs, the desired fragmentation and shape of the muckpile. A spreadsheet has been developed to allow blast design options such as burden, spacing, blast hole diameter, decking and explosive type to be varied. As any option is varied the spreadsheet recalculates and graphs the expected implementation costs, fragmentation and muckpile shape in seconds. The spreadsheet extends the philosophy of simple robust fragmentation prediction (Cunningham, 1983) to include similar models for explosive detonation (with respect to explosive type, age, blast hole diameter and density) and muckpile shape (with respect to burden, spacing, charge location and weight). The new empirical models for explosive detonation and muckpile shape prediction have been calibrated successfully for one situation and are now undergoing further field trials.
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  • Designer - A Spreadsheet for Determining the Most Cost-Effective Explosive for an Open Cut Blast
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  • Designer - A Spreadsheet for Determining the Most Cost-Effective Explosive for an Open Cut Blast
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  • Published: 1992
  • PDF Size: 0.952 Mb.
  • Unique ID: P199208013

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