Averkyn D. Validation of Parameters for the Method of Gate Road Supporting by Concrete Packed Wall

The purpose of work is to justify the parameters of the method of protecting the drifting drifts with a striped strip to increase their stability. The object of research - the processes of deformation of the contour of the drift and of the enclosing rocks with different rigidity of security structures. Subject of research - is the regularity of the deformation of the massif and the parameters of the method for protecting the excavating drifts with a banded strip. Research methods - a comprehensive research method was used in the work, including analysis and generalization of scientific and practical experience in maintaining excavated drifts; The establishment of the effect of the technology of constructing concrete near-shaded strips on their strength and deformation parameters by the method of physical modeling in laboratory conditions; Mine investigation of the deformation of the contour of the gangway and the surrounding rocks, depending on the stiffness of the near-streak strips. Scientific results: the mechanism has been specified and the regularities of deformation of the cast strip in the process of loading have been established, which are distinguished by taking into account the influence of its structure, as well as irregularities in the relief of the worked and worked rocks; for the first time, the mechanism and regularities of deformation of a banded strip in the process of loading, taking into account its relative shrinkage, as well as the ultimate and residual strength at various stages of solidification of the mixture and ambient temperature are disclosed; the mechanism is improved and the regularities of displacement of the contour of the excavating drift and deformation of its enclosing rocks are established, differing by differentiation of the roofing and soil coverings, depending on the distance to the bottom of the lava at various rigidity of the near-stellar structures. Practical significance of the results obtained: a program and methods for experimental studies of the influence of the parameters of the guard belt on the stability of mine workings have been developed; the parameters of the method of guarding the excavation driveways providing for the construction of a banded strip providing effective cutting of the subterranean rocks of the roof of the coal seam and, thereby, reducing the load on the support of the drift and its deformation are substantiated; elements of the technology for protection of excavating drifts have been developed, which ensures the lagging of the packaged strip from the slaughtering site to not more than 4 m and the creation of a rift between the worked and worked rock of the roof-soil of the coal seam; the nomogram of calculation of rational parameters of guarding the drift with a concrete striped strip is constructed, which allows to determine the maximum admissible speed of lava moving in the various mining and geological conditions with the parameters of guarding the gates, calculated in accordance with the Standard for anchorage and with the "Technological Regulations ..." IGTM NASU; Or determine the load on the security structure to adjust its parameters at a given speed of moving the lava. The expected economic effect was 1261.7 thousand UAH. On one drift.