Перегляд Mining of Mineral Deposits по назві
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Distant interaction of rock mass clusters around underground opening
(National Mining University, 2017-06-30)Purpose. To experimentally prove the fact of distant interaction between rock clusters during the irreversible displacements of rock mass. Disintegration of the rock mass does not necessarily imply loss in underground ... -
Distribution of mineral extraction revenue: overview of international practice
(National Mining University, 2019-06-30)Purpose. To study basic principles and conditions of the efficiency of the system to redistribute mineral extraction revenue including the countries with lower levels of welfare. Methods. The research applies a method of ... -
Dynamic analysis of well equipment to produce oil
(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 ... -
Early assessment of seismic hazard in terms of Voronezh massif-Moscow Depression contact
(Dnipro University of Technology, 2021-09-30)Purpose is to develop a system approach for early assessment of areas being of high seismic hazard and characterizing by low stability of rock mass relative to external loads. Methods. Well cores have been assessed down ... -
Ecological and technological aspects of iron-ore underground mining
(National Mining University, 2017-06-30)Purpose. To substantiate drilling-and-blasting technologies allowing to reduce the amount of hazardous substances affecting the level of ecological safety during underground ore mining. Methods. The laboratory research ... -
Ecological patterns for vegetation cover formation in the mining waste dumps of the Lviv-Volyn coal basin
(National Mining University, 2020-06-30)Purpose. Determination of ecological patterns for vegetation cover formation in the mining waste dumps of the Lviv-Volyn coal basin based on the ecotopes floristic composition analysis of waste heaps reclaimed and ... -
Economic criteria for optimizing the number and load factor of mining transformers
(National Mining University, 2019-06-30)Purpose. This article discusses how to choose the optimal number and load factor, respectively the economic power in the first year of mining power transformers operation. The analysis is carried out based on technical-economic ... -
Effect of blast induced rock fragmentation and muckpile angle on excavator performance in surface mines
(National Mining University, 2019-09-30)Purpose. A fit excavator in a surface mine gives a trouble free production. To maintain the condition and safety of an excavator, proper sizes of rock fragmentation and muckpile parameters are crucial besides its maintenance. ... -
Effect of fracture pressures on the selection of depths for casing setting in Slovakia
(National Mining University, 2016-12-30)Purpose. The purpose of the article is to describe the method of casing wells for oil and gas in the Slovak Republic. Methods. Apparently there is no general method or procedure that gives the optimal location. This article ... -
Effect of heat shock on graphitization of Donbass anthracite
(National Mining University, 2020-09-30)Purpose. The aim is to conduct experimental research into graphitization process of anthracites from the Donbass basin using shock heating, which is characteristic of furnaces with electrothermal fluidized bed. Methods. ... -
Effect of rocks displacement activation on the formation of the surface trough during anthracite seams extraction
(National Mining University, 2017-06-30)Purpose. To define peculiarities related to the formation of the dynamic and stationary half-troughs under the influence of anthracite seam extraction by adjacent faces. Methods. To establish the parameters of the surface ... -
Effects of elevated temperature on physical and mechanical properties of carbonate rocks in South-Southern Nigeria
(National Mining University, 2018-12-30)Purpose. Limestone and marble are carbonate rocks with several structural and engineering applications. The physical and mechanical properties of the rocks are fundamental as they determine their suitability for various ... -
Efficiency of energy resource production while optimizing parameters of socio-economic balance
(National Mining University, 2016-03-30)Purpose. Definition of the standardized index of energy resource generation efficiency in changing socio-economic conditions considering the development of the technological basis of the modern mining industry. Methods. ... -
Elaborating a scheme for mine methane capturing while developing coal gas seams
(National Mining University, 2020-09-30)Purpose is to substantiate and develop an efficient scheme of coalmine methane capture while preparing and developing gassy coal seams. Methods. Critical analysis of literature sources has been carried out; practice of ... -
Electromechanical transducer for drying and processing of coal concentrates and sludges
(National Mining University, 2016-12-30)Purpose. Determination of the effect of perforations in the hollow ferromagnetic rotor on dynamic characteristics of the electro-mechanical transducer. Methods. Calculation of the dynamic characteristics of the electromechanical ... -
Energy consumption analysis for natural aggregate processing and its results (Atabey, Isparta, Turkey)
(National Mining University, 2018-09-30)Purpose. This study was conducted to determine the amount of energy and water consumption in the production of aggregates for a certain period of time and also calculated the parameters that effect energy consumption in ... -
Energy indicators of the rescue units members
(National Mining University, 2016-09-30)Purpose. To determine energy consumption by rescuers depending on the type and conditions of rescue and emergency response operations. Methods. Analytical and experimental methods have been implemented both for the study ... -
Energy-saving intensification of gas-condensate field production in the east of Ukraine using foaming reagents
(National Mining University, 2019-06-30)Purpose. Development of recommendations on the use of foaming surfactants (FSs) in the overall task of increasing energy and resource conservation of wells at the final stages of the development of gas condensate fields ... -
Engineering characteristics of Egyptian limestone
(National Mining University, 2019-06-30)Purpose. Study of physical properties such as porosity, density and mechanical properties such as compressive strength and tensile strength of Egyptian limestone based on experimental investigations. Methods. In this paper ... -
Ensuring the specified position of multisupport rotating units when dressing mineral resources
(National Mining University, 2019-12-30)Purpose. The solution of the problem for determining a specified vertical displacement of supports in a rotating unit, taking into account the yielding in the crosscut of the supporting node, as well as the peculiarities ...