Engineering Physics Annotation << Back SCIENTIFIC SUPPORT OF THE TECHNOLOGY OF USING THE DEVELOPED SPACE OF THE CHAMBERS FOR THE PLACEMENT OF SOLID WASTE OF VARIOUS DISPERSITIES YU.P. GALCHENKO One of the promising directions of the development of geotechnology for underground mining is the solution of the problem of a closed cycle of solid matter circulation, through the use of the developed space for storing waste of processing processing. One of the cheapest ways to solve these problems is to use the broken rock mass remaining on the bottoms of the chambers after the ore is released from them as filtering and enclosing systems. To study these processes, two models of the camera were built at a scale of 1: 25 and 1:50 and a research methodology was prepared. The phase composition of the pulp used in the simulation at its first stage was assumed to be T:W=70: 30, which corresponds to the phase composition of the pulp after the first stage of hydrocycloning. The process of colmatation is well traced by the volume ratio at the first two stages of the experiment. The solid layer remaining after the first filling (4.7 kg) lost its stability during the second serving and was moved along with part of its solid fraction into the voids between the pieces of crushed material. This process had a pronounced two-stage character. First, a part of the solid pulp material accumulates on the surface of the crushed material, and then it is transferred to its voids together with the solid component of the second portion of the pulp. The colmated ore mass has good filtration properties and high hydraulic resistance, which is sufficient for setting up studies in the future to justify the technology of laying chambers with tailings of enrichment while preserving the preparatory workings, which may be necessary in the future for partial development of inter-chamber pillars. Keywords: underground mining; developed space; solid waste; rocks; tailings of enrichment; colmatation; filtration; placement. DOI: 10.25791/infizik.8.2021.1223 Pp. 44-48.