explosive engineering
A company which calculates the force and placement of explosive charges in a structure's demolition.
An explosive engineering company is a firm involved in the demolition of a structure, which is responsible for calculating the force and placement of explosive charges during implosion of the structure. (The term explosion refers to the individual charges, not the effect on the building.)
The engineering assignment concerns explosive charges used for the demolition of the particular structure. Its defining work is calculation for that demolition, rather than general manufacture or supply of explosives.
A demolition company carries out dismantling, while a deconstruction consultant provides broader demolition engineering and logistical expertise. Explosive engineering identifies the specific calculation specialty within such work.