Resource-saving Technology of Building of Vertical Mine Working in Soil

Abstract It shows the distribution of the estimated cost for the construction of vertical underground constructions in soils with the use of temporary support and their comparison with the cost of transmission using the screen of the grout-injected piles, allowing to increase the stability of the rock outcrops. The proposed solutions allow the construction of vertical underground structures in the ground by the combined technological scheme. For justification of the proposed solutions technique of determination of critical normal and shear stresses based on the condition of the equilibrium state of the soil of Prandtl – Reissner and limiting soil shear strength by the condition of the strength Coulomb-Moh. It is allowed to make an equation to determine the maximum possible use of the depth of penetration of the combined scheme, depending on the soil mechanical properties. According to the results of analytical studies the mathematical model is developed of the “press-fitted body” piles, allows you to manage its load-bearing capacity. The result of research was the development of design methodology that allows, based on selected characteristics of mine working to determine the optimal parameters of the formation of the protective screen.