Rachkovskiy V. Ground geotechnology parameters of mined of diamondiferouses field of Ukraine

Dissertation is devoted the questions of ground of rational geotechnological parameters of development of native diamondiferouses deposits. A synthesis of flowsheets and equipment of booty in an aggregate with the mathematical model of process of stability of walls of hollow chambers of large diameter is new scientific achievements in area of realization of the strategic mastering of raw mineral-material complex of Ukraine. Suggests the system of increase of availability of supplies of kimberlite owns the method of geotechnological preparation of deposit to development. The purpose of geo-technological preparation of deposits is assumed by purposeful and structural transformation of supplies useful minerals and arrays of containing breeds, increases of availability of supplies and subsequent possibility them efficient development the combined method - traditionally - underground, and geotechnological, without being of auxiliary personnel in cleansing space with placing of equipment of booty on an earthly surface. Calculation of deformation of circular cylinder shell of hollow chamber at a monaxonic compression, deformations of circular cylinder shell at vnesh-it pressure, and also deformations of circular cylinder shell at an axial compression and external pressure are set, that critical tension of loss of stability of walls of by a booty chamber arcwise grows with the increase of absolute size of area of destruction. At small area of destruction of h = 0,2 m the loss of stability of hollow chamber is possible on a depth 1000 m from an earthly surface. For support of walls of hollow chambers, since a depth 900 m a to 1000 m it is recommended to pass from the systems of development with working open-space to the systems with stackings.