Line charge

In demolitions, a line charge is a preformed explosive intended to produce a linear detonation pattern, generally that is narrow. They often resemble rope or cable.

Line charges may be deployed by hand, by a towing rocket, or by traction on a nonexplosive line used as a guide. Military applications include clearing minefields or areas containing improvised explosive devices, usually by triggering sympathetic detonation of the emplaced explosives. Other applications include breaking ice packs or log jams.