Engineering Physics Annotation << Back ADAPTATION OF THE ELEMENTS OF THE THEORY OF PHASE TRANSITIONS TO THE CONDITIONS OF CREATION AND APPLICATION OF CRYOGENIC MINING TECHNOLOGIES WITH A CLOSED CIRCULATION OF SUBSTANCE YU.P. GALCHENKO, G.V. KALABIN, K.S. HACHATRYAN The results of studies of the possibilities of applying the provisions of the theory of phase transitions describing the mechanisms of formation of a filling mass from fine-dispersed mining waste due to the cryogeological resource of territories are presented. It was found that the modifi cation of J. Stephen can be used to describe the dynamics of heat transfer at the initial stage of the technological process. The conditions of this modifi cation are determined and a solution to the problem of heat transfer is given, associated with freezing briquettes from wet enrichment wastes due to the use of a climatic temperature resource – negative outside air temperature. Technologically, this solution allows, this solution allows developing additional measures to ensure the stability of the enclosing rocks and create new opportunities based on the use of frozen water as a binder, while relaxing the worked-out space of the lithosphere by recreating in it an artificial ice-rock mass from mining and processing waste redistribution. Keywords: cryolithozone, convergent mining technologies, closed cycle of waste circulation, briquettes, Stefan’s problem, heat transfer, temperature fields, phase transition boundaries. DOI: 10.25791/infizik.6.2021.1214 Pp. 41-47.