Engineering Physics Annotation << Back JUSTIFICATION OF THE MODEL OF INTERACTION BEATS ORE COMPRESSION ARRAY AND ENVIRONMENT WHEN DEVELOPING A GENTLE LIVED IN THE PERMAFROST ZONE Yu.P. GALCHENKO Flat and inclined deposits are the most difficult to develop geological objects, especially at low power of ore bodies, in the raw material base of rare and precious metals of the Arctic region. Conducting here the treatment dredging by traditional methods requires the constant presence of a person directly in the treatment space under the most uncomfortable conditions and is usually accompanied by high losses of broken ore on the lying side of the block. One of the possible ways to solve these problems is to use the technology of cleaning dredging by cutting along the strike with the ore breaking by wells parallel to the treatment face line on the loose clamping medium in the form of an adjacent directly to the face of the ore shaft. The final state of the subsystem repulsed ore mass-clamping medium, which is characterized by the distribution in the volume of the value of the loosening coefficient, is almost completely determined by the interaction of the repulsed and moved by the explosion ore pieces with the material of the clamping medium. At the time of the explosion, the formed individual pieces of ore acquire kinetic energy, which is further distributed throughout the ore shaft, changing its bulk density. The material of the ore shaft in contact with the face should have such flexibility that when the next layer is broken off, its displacement would ensure the free movement of the pieces of the first beaten off layer. To build an adequate physical model of interaction between the beaten and previously beaten material, a number of simplifications in the description of the state of the ore shaft were adopted. The processes occurring during the breaking of the ore layer on a loose clamping medium are described by a system of differential equations, which is a standard Cauchy problem and is solved by the fourth-order numerical Runge-Kutta method. Key words: shallow veins, blasting, bore, compression medium, the interaction physical model of the process, as crushing, the ore fines, the loss of the ore shaft. DOI: 10.25791/infizik.02.2019.481 Contacts: E-mail: schtrek33@mail.ru Pp. 39-45.