A high-strength explosive composition for the seismic columns containing expanded ammonium nitrate (AN) 67.3%, wood powder 1%, diesel oil 0.3%, wax 0.7%, TNT 25% and aluminum powder 5.7%, was developed by using high energy aluminum powder additive based on the common thermo-plastic expanded AN explosive composition, optimizing the formulations of inner explosive charges, and determining their explosion properties experimentally.
In this paper a valuable method for sealing wax at the both ends of small explosive Charges was presented, and relative problems such as nozzle improvement, spray temporature, flow of wax liquid, Choice of filter system and theoretical design were described.
γ-Ray revolving gauge for measurement of local density homogeneity of explosive charges is introduced, and the main features of the guage and its parts are dis- cussed.
The explosive performances of DAAT were calculated theoretically by VLW equation-of-state (EOS) and the results showed that several explosive formulations based on DAAT have high-energy and insensitive performance.
Secondly, the effect of explosion shock waves, produced by plastic strip-like explosive, on welding residual stress distribution was predicted with coupled Lagrange-ALE algorithm.
The black shales also contain K-bentonites from explosive, felsic-intermediate volcanism, the distribution of which also supports orogeny to the southeast.
The model of a current meander is put forward, which explains the generation of an inductance electric field, current wedge, and other effects of the explosive onset of a substorm.
The convective combustion of porous gunpowder and high explosives is an intermediate stage in the transition from layered combustion to detonation [1, 2].
Previous studies show that both dynamite borehole shots and vertical vibrations from controllable seismic sources at the surface will produce relatively strong pure P-waves and weaker pure S-waves.
Results are presented from two-dimensional numerical simulations of the generation of electric signals during the explosions of chemical explosive charges in air.