Results of numerical investigation of rock fragmentation by charges of different designs

Numerical Simulation of the Failure Localization for Rock Massive Under Rock Pressure Conditions During Explosive Mining with Charges of Industrial Explosives

“…As the experience of calculations has shown, the method of smoothed particles is the most suitable for solving problems of mesomechanics, in which the processes of explosive destruction on the scale of the structure of the geomedium are considered [3][4][5][6][7][8][9][10][11]. The absence of a computational grid makes it possible to naturally calculate arbitrary rotational and shear displacements of the material, the decay of simply connected and the merging of multiply connected computational domains.…”

“…The advantages of the Lagrange, gridless ideology of the smoothed particle method make it possible, when using it, to reveal the features of wave processes and the nature of the destruction and fragmentation of the geo-environment. Peculiarities of the influence of energy saturation of charges on the kinetics of fragmentation of destroyed rocks were revealed [3].…”

“…The research methodology is based on the combined use of computer modeling and experiments on compositional simulation models for calibrating numerical calculations. Simulation compositional models contain color-coded zones of explosion action at three levels by distance from the center of the charge and include inclusions of rock samples and crystalline raw materials [1][2][3][4][5].…”