Study on the reasonable parameters of the cylinder shaped charge with tapered liner funnel to destroy stone

The theoretical basis of the process of physical explosion of the shaped charge is relatively complete. However, it is no specific theory for calculating and designing destroying stone under different conditions and requirements purposes. Therefore, based on the built relationships between a coefficient of using explosive energy, a coefficient of the power of cylinder shaped charge, a tapered liner funnel with the geometric parameters of this charge, the article is conducted the evaluation, analysis and selection of the reasonable parameters of the shaped charge to destroy stone. In the experimental explosions for destroying the identical concrete samples, the shaped charges with reasonable selected parameters and the concentrated charges having the same masses and conditions have been tested. The results show that the coefficients using useful explosive energy, the size of destructible areas and the degree of destruction samples of the shaped charges are larger than those of the concentrated charges.