Drilling Best Practices for Top Hammer, DTH and Rotary Drilling
(Room Concorde A)
30 Jan 16
10:30 AM
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11:15 AM
Tracks:
Blasters Training Seminar
Surface hard rock and coal mines devote time and resources to optimizing dig limits. In most operations, these limits are created through statistical and probabilistic methods, complex financial calculations, scheduling and processing needs. These dig lines have been shown to move, often considerable distances, during blasting. If the final location of these polygons is not determined, major losses can occur. Losses can be mitigated by implementing a program of blast movement monitoring, but appropriate blast design is necessary to prevent mixing and create consistent movement in the blast. This presentation will concentrate on understanding blast dynamics and the roles played by blasting engineers, short-term planners, and geologists in controlling movement. Additionally, actual blasts will be examined to dispel myths, identify common mistakes and demonstrate proper blast design and monitoring techniques.