Based on the analysis of rock mass disturbance during blasting operations and their theoretical description, calculation schemes for determining geometric parameters depending on detonation conditions are proposed. The relations linking the parameters of drilling and blasting operations with the geometric dimensions of rock mass disturbance have been obtained, which makes it possible to predict this disturbance for various "know-how" of blasting operations.
It is known that in technological processes of drilling, blasting, crushing and milling, depending on the conditions and nature of the application of the external load, different amounts of energy are spent on the destruction of a unit volume of rocks. The analysis shows that each of the widespread empirical laws of crushing is a part of a more general law of crushing, obtained by the authors of the article on the basis of the universal energy criterion of destruction taking into account the scale effect.
