Volume 14, Issue 3
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Recent Submissions
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Underground mining method assessment using decision-making techniques in a fuzzy environment: case study, Trepça mine, Kosovo
(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
(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
(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
(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
(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
(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 ... -
Safety barrier of electrical equipment for environments with a potential explosion in underground coal mines
(National Mining University, 2020-09-30)Purpose. Electrical equipment for explosion-threatening environments in mines at risk of explosion communicates with the external environment through intrinsic safety barriers that limit the values of currents to values ... -
Scaled-up laboratory research into dry magnetic separation of the Zhezdinsky concentrating mill tailings in Kazakhstan
(National Mining University, 2020-09-30)Purpose. Development of the rational technology for processing manganese-bearing tailings of the Zhezdinsky concentrating mill in the Republic of Kazakhstan aimed to obtaining manganese concentrate for smelting the ... -
Analytical platform to provide competitiveness of ore-mining machinery manufacturing
(National Mining University, 2020-09-30)Purpose is to develop analytical platform providing competitiveness of ore-mining machinery manufacturing. Methods. The analytical platform combines five modular blocks. It involves determination of an area of optimum ... -
Quantifying the release of acidity and metals arising from drainage of acid sulfate soils in the Kelantan Plains, Malaysia
(National Mining University, 2020-09-30)Purpose. This paper discusses the release of acidity and toxic metals from acid sulfate soils in the Kelantan plains due to the oxidation of pyrite. Methods. A study was conducted in the field and laboratory using leaching ... -
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. ... -
Application of the Radial Basis Function interpolation method in selected reservoirs of the Croatian part of the Pannonian Basin System
(National Mining University, 2020-09-30)Purpose. The use of interpolation methods of mapping Radial Basis Function (RBF) on reservoir data from one field in Croatian part of Pannonian Basin System (CPBS). Methods. The RBF method (with five single basic mathematical ... -
Analysis of the stress deformed state of rocks around the haulage roadway of the Beskempir field (Kazakhstan)
(National Mining University, 2020-09-30)Purpose. To perform research and detailed analysis of the stress deformed state of rocks around the haulage roadway based on the numerical modeling with the purpose to select the rational type and design of the haulage ... -
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 ... -
Microsoft paint imaging system – a photogrammetric approach to fragmentation measurement in rock and aggregate production
(National Mining University, 2020-09-30)Purpose. To evaluate the fragment sizes of blasted material using Microsoft paint imaging system. It focuses on digital imaging fragmentation analysis of rocks and aggregates using the Microsoft paint, putting into ... -
Underground monitoring as the best way of roadways support design validation in a long time period
(National Mining University, 2020-09-30)Purpose. The aim of this paper is to show the importance of geotechnical monitoring in assessing stability of an underground excavation. Every mining excavation is designed on the basis of limited geotechnical data and ...
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