The using of the shaped charges for destruction of ice cover

The possibility of using cumulative charges for the destruction of the ice cover is considered. On the basis of experimental researches and numerical calculations, the features of the penetration of a cumulative jet into an ice obstacle, as well as the nature of the destruction of ice in the zone of the through hole formed, are analysed. In this case, the existence in the neighborhood of the penetration whole the zones of strength weakened has been established and quantitatively described: zones of fine-dispersed compacted snow-ice, zones of fine-crystalline crushed ice particles and cracking zones. This feature can be used in the development of an appropriate combined explosive device for the destruction of the ice cover