Coal destruction by impact

Abstract

Significant value of the forces arising at impact, exceeding the weight of the striking body in hundreds and thousands of times, opens wide opportunities for simplification of modern mining machines by increasing their speed and accumulation of energy by impact elements. On the other hand, the study of the impact phenomenon can facilitate the study of regularities occurring during the destruction of rocks by high-pressure water jet. All this indicates the relevance of studying the regularities of rock destruction and, in particular, of coal by impact.