propagated blast

propagated blast

[′präp·ə‚gād·əd ′blast]
(engineering)
A blast of a number of unprimed charges of explosives plus one hole primed, generally for the purpose of ditching, where each charge is detonated by the explosion of the adjacent one, the shock being transmitted through the wet soil.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Figure 7 displays the behaviour of the propagated blast wave for the "open door" case and a "meandering" case (D = 1m; E = 1m) for a plane view at the height of 1.5 meters.