Ripple-Firing, Delay-Firing, Millisecond Delay Initiation
Ripple-Firing, Delay-Firing, Millisecond Delay Initiation : These are all terms used to characterize quarry or mine-blasting activity, in which a particular shot is carried out as a series of separate charges, fired in a sequence instead of all together. Ripple-firing is the term commonly used, but experts usually refer to delay-firing and in some cases to millisecond delay initiation (where a specifically timed pattern of charges is executed that may entail delays that are designed for a particular blasting objective, such as fragmenting rock to a pre-determined size and moving the fragments a pre-specified distance). See Richards (2002)
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