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Information × Registration Number 0221U107263, 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 30-12-2021 Organization Institute of Geotechnical Mechanics named after MS Polyakova of the National Academy of Sciences of Ukraine popup.description2  The research object 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. The uranium ore hypergenesis influence on mining operations is determined; implementationof the information system of safety of conducting underground mining works is executed; the optimization of the composition of the embedded material was carried out and the regularities of its influence on the change of the stress amplitude in the solid medium were established; the generalizing algorithm of a parameters definition of protective coverings is developed; the influence of impurities with different component composition on the corrosion resistance of the leaching equipment material is optimized; methods and means of diagnostics of the state of the rock massif and control of fastening of mine workings on uranium deposits are improved; substantiated parameters, improved means and methods of release from the ducts of reflected and fine classification by size and dehydration of crushed uranium ores; the most effective criteria of comparison are established and processes of physicochemical transformations of composite materials are defined. 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 Anatolii F. Dyrda Vitaliy Illationovich Skipochka Sergii I. Shevchenko Volodymyr H. popup.nrat_date 2022-03-09 Close