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Information × Registration Number 0221U106171, 0117U004231 , R & D reports Title The development of scientific bases and improvement of methods and means of improving the efficiency and safety of mining operations in the extraction of uranium ore popup.stage_title Head Shevchenko Volodymyr H., Доктор технічних наук Registration Date 01-11-2021 Organization Institute of Geotechnical Mechanics named after MS Polyakova of the National Academy of Sciences of Ukraine popup.description2  The object of research is the processes of mining operations at enterprises with targeted and associated uranium mining. The purpose of the study is to develop scientific bases and improve methods and means to increase the efficiency and safety of mining operations at enterprises with targeted and associated uranium ore mining. Research methods: mechanics of rock destruction, mathematical physics and mechanics of a continuous medium, nonlinear oscillations of mechanical systems, theories of elasticity and viscoelasticity, thermodynamics, woodworking, decryptography, electron and optical microscopy, X-ray diffraction analysis, chemical analysis methods. For the first time the regularities of structural-mineralogical transformations of uranium-containing rocks by various geological processes have been established; the dissipation characteristics of deformation and electromagnetic absorption and radiation at stationary and dynamic loading of rock are determined; regularities of influence of anisotropy of strong rocks on change of specific surface energy of destruction of models under different conditions of their dynamic loading are established; the method of calculation of parameters of the sectioned feeders taking into account nonlinearity of their elastic links is developed; the regularities of destruction of a crystal lattice of model objects are received; established patterns of propagation of elastic waves in a complex geomechanical system "array-workings-fastenings and protective structures"; the parameters of safe storage and transportation of radioactive waste of uranium ores are substantiated. The practical value of the work lies in the substantiation of the parameters of safe storage and transportation of radioactive waste, prevention of possible accidents and increase of safety of underground development of uranium ores without disturbance of the earth's surface. Product Description popup.authors Efremov Ernest I. Baranov Volodymyr A Bulat Anatoliy Fedorovich Dyrda Vitaliy Illationovich Skipochka Sergii I. Shevchenko Volodymyr H. popup.nrat_date 2021-11-01 Close