Explosive apparatus has at least two cuboid moldings, which each includes at least one firing hole and explosive, and whose edge lengths have a ratio of substantially 1:2:4, and a container including an internal area having a square outline and at least one aperture hole to the internal area, the internal area having a side length corresponding at least approximately to a longest edge length of the moldings and a height corresponding at least approximately to a shortest edge length of the moldings or to an integer multiple thereof, wherein the moldings are placed in the internal area of the container such that the at least one firing hole in one of the at least two moldings is aligned with the at least one aperture hole in the container, the aperture hole being intended for insertion of an explosive capsule into the firing hole of the corresponding molding.