INVESTIGATION OF GRANITE BORING USING HIGH SPEED LIQUID PROJECTILES

摘要

An experimental study of granite boring by high speed water projectiles (impulsive jets) was carried out. The projectiles used as a boring tool were generated by a launcher where the chemical energy of a gunpowder was converted into the kinetic energy of a projectile. Various patterns of the distribution of sites of the projectiles impact on the samples surfaces were examined. As a result of the study process feasibility has been estimated.