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As with any blasts the afore mentioned items in slide 3 need to be taken in to consideration before starting. 

Because the holes will not be charged and not all rock types or face heights are suitable to this method, consideration should be made to the following

  • Can a trial blast be carried out in the same orientation as the planned final face
  • If so try different spacings on sections of the drilled line, also try different burdens between the line and the charged holes in front
  • Trial different charge weights on the blast holes in front of the line

Stitch or Line Drilled Final Face Blast

 

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