• Risk assessment of radionuclide contamination spreading while flooding coal mined-out rocks 

  Sadovenko, Ivan; Ulytsky, Oleg; Zahrytsenko, Аlina; Boiko, Kateryna (National Mining University, 2020-12-30)

  Purpose. To investigate pathways and concentrations of the most dangerous radionuclides entering the surface and groundwater in terms of hydrodynamic situation re-establishment in the zone of radiation-hazardous mine field ...

• Probabilistic calculation in terms of deformations of the formations consisting of compacted overburden of Quarternary rocks 

  Vynnykov, Yurii; Kharchenko, Maksym; Dmytrenko, Viktoriia; Manhura, Andrii (National Mining University, 2020-12-30)

  Purpose is to study the effect of a stress-strain state (SSS) of rock mass on statistical dispersion of deformability characteristics of the compacted overburden; to develop modeling methods of dispersion of random values ...

• Review of unconventional hydrocarbon resources: production technologies and opportunities for development 

  Tolmachev, Oleg; Urunov, Asror; Muminova, Shоhzodahon; Dvoichenkova, Galina; Davydov, Ilya (National Mining University, 2020-12-30)

  Purpose. Study the state of modern technologies for the extraction of unconventional hydrocarbon resources and determine the prospects for their development. Methods. The method of qualitative and quantitative analysis ...

• Development of the landslide risk classification for natural and man-made slopes based on soil watering and deformation extent 

  Kovrov, Oleksandr; Kolesnyk, Valerii; Buchavyi, Yurii (National Mining University, 2020-12-30)

  Purpose. To summarize and formalize the estimates of landslide risk levels based on the proposed classification of relevant environmental or man-made risks in the regions of Ukraine and local territories, including a ...

• Research into leaching of uranium from core samples in tubes using surfactants 

  Rakishev, Bayan; Mataev, Mukhametkali; Kenzhetaev, Zhiger; Altaybayev, Bagdat; Shampikova, Assel (National Mining University, 2020-12-30)

  Purpose. Improving the efficiency of borehole uranium recovery in difficult mining-and-geological conditions through the development of a new technology based on the intensification of geotechnological processes of in-situ ...

• Substantiating velocity of amber buoying to the surface of sludge-like rock mass 

  Korniienko, Valerii; Nadutyi, Volodymyr; Malanchuk, Yevhenii; Soroka, Valerii; Yeluzakh, Mukhtar (National Mining University, 2020-12-30)

  Purpose is to substantiate the parameters and factors in terms of which amber can be mined efficiently from sand deposits using hydromechanical method. Methods. Laboratory studies and full-scale experiments of amber-bearing ...

• Dynamic analysis of well equipment to produce oil 

  Grudz, Volodymyr; Grudz, Yaroslav; Bevz, Volodymyr; Chernetsky, Mykhailo (National Mining University, 2020-12-30)

  Purpose is to study dynamics of a technological cycle of well oil production equipment to evaluate the forces acting on its structural components while operating. It is required to improve their reliability and durability ...

• Research into balance of rocks and underground cavities formation in the coal mine flowsheet when mining thin seams 

  Petlovanyi, Mykhailo; Malashkevych, Dmytro; Sai, Kateryna; Zubko, Serhii (National Mining University, 2020-12-30)

  Purpose. Study the movement of waste rock flows in the coal mine technological system and determine the balance of rocks and underground cavities formation from the perspective of the current mining operations development ...

• Substantiation of the methodology for modeling and calculating the optimal operating modes of a tandem pumping installation when mining uranium 

  Myrzakhmetov, Beibit; Sultabayev, Arkhat; Toktamissova, Saltanat (National Mining University, 2020-12-30)

  Purpose. The purpose of the research is to develop a mathematical model of the jet pump (JP) working process and a calculation methodology for modeling, as well as to determine the optimal operating modes of a combined ...

• Determining local wetness conditions within the mined lands using GIS 

  Skrypnyk, Oleh; Shapar, Arkadii; Taranenko, Oleh (National Mining University, 2020-12-30)

  Purpose. To provide methodologically determining local wetness conditions within Kryvbas mined lands taking into consideration the surface structure and using geoinformation technologies. Surface structure is the determinative ...

• Underground mining method assessment using decision-making techniques in a fuzzy environment: case study, Trepça mine, Kosovo 

  Ibishi, Gzim; Yavuz, Mahmut; Genis, Melih (National Mining University, 2020-09-30)

  Purpose. The purpose of this paper is to reevaluate the currently used underground mining method with the intention to verify if cut-and-fill stoping method is appropriate for deep future excavation mining levels > 800 m ...

• Design of bottom hole assemblies with two rock cutting tools for drilling wells of large diameter 

  Moisyshyn, Vasyl; Voyevidko, Igor; Tokaruk, Vasyl (National Mining University, 2020-09-30)

  Purpose. A methodology development for calculating the bottom hole assemblies (BHA) with two rock cutting tools for drilling the wells of large-diameter with an ability to manage the trajectory. Methods. A mathematical ...

• Experimental characteristics for deformation properties of backfill mass 

  Iordanov, Ihor; Novikova, Yuliia; Simonova, Yuliia; Yefremov, Oleh; Podkopayev, Yevgen; Korol, Anton (National Mining University, 2020-09-30)

  Purpose. Determining the deformation properties of backfill mass used to preserve the continuity of the coal-rock stratum enclosing mine workings. Methods. To achieve the purpose set, laboratory studies have been performed ...

• Improving the technology of uranium mining under the conditions of high groundwater pressure 

  Omarbekov, Yernur; Yussupov, Khalidilla (National Mining University, 2020-09-30)

  Purpose. Substantiation of technological solutions for uranium mining by the method of In-Situ Leach Mining (ISL) under the conditions of the high groundwater pressure. Methods. Analysis of mining-and-geological conditions ...

• Certain aspects concerning the development of a functioning scheme of the auto-mated system to control energy flows of underground iron-ore enterprises 

  Sinchuk, Oleh; Kupin, Andrii; Sinchuk, Ihor; Rohoza, Mykhailo; Plіeshkov, Petro (National Mining University, 2020-09-30)

  Purpose is to develop a functioning scheme of ACS for energy flows in terms of invariability of electric power consumption as well as inversion of energy flows of mining enterprises in the current time of day to decrease ...

• Studying a correlation between characteristics of rock and their conditions 

  Abdiev, Arstanbek; Mambetova, Rakhat; Abdiev, Aziz; Abdiev, Sher (National Mining University, 2020-09-30)

  Purpose is to determine dependences of velocities of elastic waves in isotropic rocks and anisotropic waves with orthotropic and transverse-isotropic symmetry upon pressure and depth to develop evaluation criteria and ...

• Studying the heavy metals concentration in discharged water from the Trepça Mine and flotation, Kosovo 

  Kadriu, Sadija; Sadiku, Milaim; Kelmendi, Mensur; Sadriu, Edona (National Mining University, 2020-12-30)

  Purpose. The purpose of this study is to assess the concentration of heavy metals in industrial discharge water from the Trepça Mine in Stantërg and flotation, and their impact in polluting the urban environment. Methods. ...

• Analysis of current and voltage harmonics introduced by the drive systems of a bucket wheel excavator 

  Popescu, Florin Gabriel; Pasculescu, Dragos; Marcu, Marius Daniel; Pasculescu, Vlad Mihai (National Mining University, 2020-12-30)

  Purpose. The quality of electricity is a problem of major interest, making it necessary to analyze the factors and causes that result in the worsening of the electric energy quality. An important aspect of electricity ...

• Choosing a camera for mine surveying of mining enterprise facilities using unmanned aerial vehicles 

  Kalinichenko, Vsevolod; Dolgikh, Oleksandr; Dolgikh, Lubov; Pysmennyi, Serhii (National Mining University, 2020-12-30)

  Purpose. Choosing an effective method for performing the mine surveying of the objects at mining enterprise based on the implementation of practical and analytical work. Particular attention is focused on the use of modern ...

• On the methodology for considering scale effect of rock strength 

  Skipochka, Serhii; Krukovskyi, Oleksandr; Palamarchuk, Tatiana; Prokhorets, Liliia (National Mining University, 2020-12-30)

  Purpose is to improve a methodology for considering the influence of scale effect by transferring to the evaluation of rock strength immediately within the rock mass. Methods. The research involves methods of critical ...

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