ABSTRACT
Blasting technology using extended cylindrical charges has found widespread application in open-cast mines as well as in hydro-reclamation installations. In studying the effect of blasting cylindrical charges, scaled and deep-seated blasts were conducted. The former was carried out by placing charges of different weights at the same scaled depth and the latter with charges of the same weight placed at different depths. In order to understand the characteristic features (qualitative and quantitative) of seismic effects due to the blasting of a cylindrical charge, comparative studies were conducted with the already established seismic effects due to the blasting of a spherical charge. Prof. V. N. Mosinets developed a methodology for seismic-safe conduction of very large blasts in mines. The longitudinal wave is the dominant component according to intensity of vibrations in the near-field zone of blast effects and the surface wave in the far-field elastic zone.
