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pre-splitting


'pre-splitting' can also refer to...

 

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A method of blasting in which a planar crack is propagated by blasting to determine the final shape of a rock face before holes are drilled for the final blast pattern; firing with a minimum time scatter can then be used. The crack helps to screen the surroundings from ground vibrations during the firing of the main round.

Subjects: Earth Sciences and Geography.


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