Abstract: A blast modeling system may generate a site model based on blast input data. The blast input data may include blasthole data, bench information, and geology input data. The site model may comprise a plurality of distinct elements representing rock masses. The blast modeling system may simulate a blast by determine initial pressures in each blasthole caused by a detonation of an explosive. The blast modeling system may determine a heave of the blast based in part on the initial pressures, and display a simulation that is based in part on the heave.

Abstract: Disclosed is a geophysical or seismic exploration system. The system comprises a set of explosive device magazines configured for carrying a plurality of explosive device components, wherein the explosive device components are configurable to form individual explosive devices, and wherein each explosive device carries a set of explosive compositions and is configured for collimating an explosive shock wave produced thereby into a quasi-planar shock wave output from a distal end of the explosive device to produce a geophysical or seismic exploration wave. The system also includes a set of unmanned explosive device deployment support vehicles, wherein each unmanned explosive device deployment support vehicle comprises an aerial or land-based unmanned vehicle configured for carrying an explosive device magazine and delivering the explosive device magazine to a first in-field location at which each explosive device is deployable for carrying out a geophysical or seismic exploration operation.

Abstract: A blast modeling system may generate a site model based on blast input data. The blast input data may include blasthole data, bench information, and geology input data. The site model may comprise a plurality of distinct elements representing rock masses. Each element may have a geometric outline formed by connecting endpoints of one or more lines with arcs such that the endpoints of the one or more lines are indirectly coupled via the arcs. The blast modeling system may simulate a blast using the plurality of elements.

Abstract: An explosive device configured for outputting a quasi-planar shock wave includes: a body structure having a proximal end and an opposing distal end, and within which (a) an initiation device chamber; (b) a donor charge having a geometric shape correlated with first cone having an internal void exhibiting a geometric shape correlated with a second cone, wherein a first base of the first cone and a second base of the second cone reside in a common plane and have a common center point; (c) a non-explosive wave shaper filling the void; and (d) an acceptor charge are sequentially disposed adjacent to each other in a direction toward the distal end. Perpendicular to the central axis, a maximum lateral span of each of the wave shaper, the donor charge, and the acceptor charge coincide. The acceptor explosive charge mass does not laterally extend to a set of body structure outer walls.

Abstract: A lightweight, armored protective garment for protecting an arm or leg from blast superheated gases, blast overpressure shock, shrapnel, and spall from a explosive device, such as a Rocket Propelled Grenade (RPG) or a roadside Improvised Explosive Device (IED). The garment has a ballistic sleeve made of a ballistic fabric, such as an aramid fiber (e.g., KEVLAR®) cloth, that prevents thermal burns from the blast superheated gases, while providing some protection from fragments. Additionally, the garment has two or more rigid armor inserts that cover the upper and lower arm and protect against high-velocity projectiles, shrapnel and spall. The rigid inserts can be made of multiple plies of a carbon/epoxy composite laminate. The combination of 6 layers of KEVLAR® fabric and 28 plies of carbon/epoxy laminate inserts (with the inserts being sandwiched in-between the KEVLAR® layers), can meet the level IIIA fragmentation minimum V50 requirements for the US Interceptor Outer Tactical Vest.