Mining of Mineral Deposits: Recent submissions
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Origin of barite deposits in dolomite-limestone units, Gazipasa, Eastern of Antalya: geology, geochemistry, statistics, sulfur isotope composition
(National Mining University, 2020-03-30)Purpose. Gazipasa region is one of the most important barite mineralization of Turkey. To investigate the main origin properties of Gazipasa barite deposits, conditions of their genesis and occurrence. Methods. To ... -
Parameters determination of hydromechanization technologies for the dumps development as technogenic deposits
(National Mining University, 2020-03-30)Purpose. Determination and substantiation of the hydromechanization technologies parameters and the hydraulic transport operation modes for mining the technogenic deposits formed as a result of the enrichment waste storing ... -
Determining patterns of the geomechanical factors influence on the fastening system loading in the preparatory mine workings
(National Mining University, 2020-03-30)Purpose. Substantiation of calculating the rational parameters of reaction and yielding property of the fastening system in the preparatory mine workings. Methods. The stress-strain state analysis of the “massif – support” ... -
Experimental research into the effect of some operation factors and rock properties on the rate of penetration
(National Mining University, 2020-03-30)Purpose. The purpose of this research is to investigate the effect of weight on bit (WOB), rotary speed (RPM), and some rock properties on the rate of penetration (ROP). Methods. Four types of rock were collected from ... -
Solution of the problem to optimize two-stage allocation of the material flows
(National Mining University, 2020-03-30)Purpose is to elaborate innovative and computationally efficient algorithm to solve a problem of two-stage allocation of the resource occupying continuously the specified area as well as to demonstrate the behaviour of the ... -
Research into limits of gas-fired burners flame stabilization in the flue gas recirculation
(National Mining University, 2020-03-30)Purpose. Determining the flue gas recirculation effect on the verge of the gas-fired burners flame stabilization based on experimental industrial research. Methods. The studies were conducted on a circular heating furnace ... -
Use of the TOPSIS technique to choose the best supplier of quarry natural aggregate
(National Mining University, 2020-03-30)Purpose. All over the world, natural substance – the most consumed after water – is the aggregate. The aim of this paper is to select the best supplier of Quarry Natural Aggregate (QNA). Methods. Selection of the best ... -
Applied scientific and systemic problems of the related ore-dressing plants interaction in the event of decommissioning the massif that separates their quarries
(National Mining University, 2020-03-30)Purpose. Determining the possible and substantiating expedient alternate design and engineering decisions regarding the stage of spacial union of the adjacent quarries belonging to various owners by mining the rock pillar ... -
Analysis of operation parameters of partial backfilling in the context of selective coal mining
(National Mining University, 2019-12-30)Purpose is to determine factors of effect of mechanical parameters and geometry of packs, constructed using the undercut rocks in the process of selective coal mining, on the state of geomechanical system within a mine ... -
Fault tree analysis and prevention strategies for gas explosion in underground coal mines of Pakistan
(National Mining University, 2019-12-30)Purpose. Gas explosion in the underground coal mines of Pakistan is the main source of coal miners’ mortalities. The purpose of this article is to analyze the main causes of gas explosion in the underground coal mines of ... -
Study of change in the leaching solution activity after treatment with a cavitator
(National Mining University, 2019-12-30)Purpose. Increasing the valuable component content in a pregnant solution due to the activation of leaching solution with cavitation treatment in case of the borehole in-situ leaching (ISL). Methods. To obtain the cavitation ... -
Analysis of possibilities to increase oil recovery with the use of nitrogen in the context of deep oil deposits of the Dnipro-Donetsk oil-and-gas Ukrainian province
(National Mining University, 2019-12-30)Purpose is to increase oil recovery of deep oil deposits of the Dnipro-Donetsk oil-and-gas Ukrainian province with the use of nitrogen. Methods. Experiments, intended to residual oil displacement with the use of different ... -
Three-dimensional electromagnetic field model of an auger electromechanical converter with an external solid rotor
(National Mining University, 2019-12-30)Purpose. Creating a three-dimensional mathematical model of the electromagnetic field of an auger electromechanical converter with the external solid rotor, taking into account the geometry peculiarities and the finite ... -
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 ... -
Beneficiation of phosphate sludge rejected from Djebel Onk plant (Algeria)
(National Mining University, 2019-12-30)Purpose Flotation tests have been used in order to achieve the purposes of this study which are: To obtain the highest recovery with a maximum grade of P2O5 from the tailing generated by the phosphate plant of Djebel Onk ... -
Implementation of probabilistic approach to rock mass strength estimation while excavating through fault zones
(National Mining University, 2019-12-30)Purpose. The paper addresses the rock mass state estimation while excavating a cross-heading through the area of regional fault “Bohdanivskyi” based on probabilistic approach to assessing the rock strength. Methods. The ... -
Survey of the world practice of implementing energy-efficient technologies in terms of mining enterprises
(National Mining University, 2019-12-30)Purpose is the analysis of world practice of applying the best available techniques to increase energy saving and energy efficiency of mining enterprises being the important factor of the economic development. Methods. ... -
Models and methods to make decisions while mining production scheduling
(National Mining University, 2019-12-30)Purpose is to develop a new approach to the design of mining operations basing upon models and methods of decision making. Methods. The paper has applied a complex approach involving approaches of decision-making theory. ... -
Determinants of environmental degradation: reflections on the impact of identified economic variables on the environment
(National Mining University, 2019-12-30)Purpose. The main objective of this study is to investigate the determinants of environmental degradation within the broader framework of the environmental Kuznets Curve analysis. To better understand the economic impact ... -
Phenomena of stability of the coal seam roof with a yielding support
(National Mining University, 2019-12-30)Purpose. Determining the conditions and parameters for ensuring the stability of the coal seam roof with a yielding support in the area adjacent to face and behind it under the influence of dynamic loads based on the ...