Substantiating the method of filling the goaf using the rock jam phenomenon

Research subject, theme, and aim center on detailing jam mechanism of discrete rock in hard rock masses and implementing its residual strength to optimize the processes of goaf filling. Research methodology includes structural mechanics and continuum mechanics provisions application to explain and improve the methods of using the mechanism of discrete rocks residual strength implementation due to rock jam when calculating the host rock state control parameters. Research results and scope. The idea of goaf filling during dislocated deposits underground mining is described. Information is given on the geological structure of the studied rocky ore deposit and the role of tectonic structures in the behavior of the mass during its development. The results of the research carried out on the state of the rock mass are shown and some geotechnical sites are distinguished as part of it on the basis of rock weakness feature. Some variants of host rock behavior depending on the joint blocks jam phenomenon are considered. The possibilities are substantiated of goaf filling by combining the methods of filling with insulation and stowing with hardening mixtures. The scope of the research results is recommended for solid mineral deposits underground development. Summary. For the moment, the use of computational methods at discrete rock residual strength implementation due to rock jam through discrete rock jamming properties is a little-used factor of a goaf filling technology, which makes it possible to obtain an environmental and economic effect while ensuring the safety of mining