Abstract
ABSTRACT There is a need for cast biasing in open pit mining. Although this type of blasting requires higher explosive consumption, the 30 to 40% saving on handling broken muck justifies application of this technique. Based on the HEAVE module built in SABREX, a computer blast simulation program developed by ICI, effective cast blasting for different site conditions can be designed and confirmed by means of high speed photography. Case studies given in the paper confirm the model's ability to make realistic predictions
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