Mining of Mineral Deposits: Recent submissions
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Modelling the influence of gaseous products of explosive detonation on the processes of crack treatment while rock blasting
(Dnipro University of Technology, 2021-09-30)Purpose is mathematical modeling of fracturing as well as influence of gaseous products of explosive detonation on the changes in rock strength. Methods. Mathematical model, using foundations of Griffith theory, has been ... -
Methods for intensification of borehole uranium mining at the fields with low filtration characteristics of ores
(Dnipro University of Technology, 2021-09-30)Purpose. Improving the efficiency of borehole uranium mining and the selection of special decolmating solutions to improve the filtration characteristics of the seam due to effective destruction, as well as by preventing ... -
The ways to enhance durability and bearing capacity of the open gear drum mills
(Dnipro University of Technology, 2021-09-30)Purpose is substantiating ways to enhance durability and bearing capacity of open gears of ore-pulverizing drum mills as well as efficiency of engineering solutions concerning the increase in their unit power at the expense ... -
Research into technology of fastening the mine workings in the conditions of unstable masses
(Dnipro University of Technology, 2021-09-30)Purpose. Determination of the rock stability along the strike of the mass, where the drift mining of the horizon -480 m is conducted, considering the possibility of using the improved types of supports in the conditions ... -
Substantiation of refractory lining influence on the electric furnace efficiency for the production of ferronickel
(Dnipro University of Technology, 2021-09-30)Purpose. The purpose of the research is to substantiate the possibility of replacing existing MgO bricks with the MgO-C bricks due to their resistance to the slag aggressiveness of the electric furnace and the Si content ... -
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 ... -
Northeastern part of the Bilanivske ferruginousquartzite quarry: Risks of mining allotment
(Dnipro University of Technology, 2021-09-30)Purpose. Substantiation of the managerial decisions to minimize the risks of mining the Bilanivske ferruginous quartzite quarry on its northeastern margin. Methods. The legislative, methodological, cartographic and ... -
Mining under the early metal in the context of Kartamysh ore occurrence of Ukrainian Donbas
(Dnipro University of Technology, 2021-09-30)Purpose is to identify process engineering of mining under the Late Bronze age (18th-13th centuries BCE) in the context of copper deposits in the Eastern Ukraine. Among other things, it concerns analysis of manufacturing ... -
Analyzing changes in a leach solution oxygenation in the process of uranium ore borehole mining
(Dnipro University of Technology, 2021-09-30)Purpose is to increase uranium content in a PR solution while developing a technique varying oxidation-reduction potential of a leach solution with its oxygenation and identify changes in the oxygenation depending upon ... -
Study and evaluation of the stability of underground mining method used in shallow-dip vein deposits hosted in poor quality rock
(Dnipro University of Technology, 2021-09-30)Purpose. This article proposes to analyze and determine the mining design for shallow-dip deposits hosted in poor quality rock. Methods. We used the UBC tool to find the optimal exploitation method, the Rock mass rating ... -
Analytical modeling of mine water rebound: Three case studies in closed hard-coal mines in Germany
(Dnipro University of Technology, 2021-09-30)Purpose. In this paper we present and validate an analytical model of water inflow and rising level in a flooded mine and examine the model robustness and sensitivity to variations of input data considering the examples ... -
Reliability and maintainability of scraper conveyor used in coal mining in the Jiu Valley
(Dnipro University of Technology, 2021-09-30)Purpose. The aim of the study is to determine and analyse causes of faults in the operation of TR-7A scraper conveyor and to estimate the required time for their remediation and select the methods of their prevention and ... -
Technical and technological aspects of the coal mine closure based on the geomechanical component assessment
(Dnipro University of Technology, 2021-09-30)Purpose. Development of a comprehensive methodology for assessing the state of mine workings based on the analysis of their contour displacement patterns when solving the problem of minimizing the risks during the closure ... -
Potential utilization of quartz sand and kaolin from tin mine tailings for whiteware
(Dnipro University of Technology, 2021-09-30)Purpose. To do experimental research into the potential utilization of residual quartz-based sands and kaolin from the tin mine tailings in Bangka Belitung Province, Indonesia. Methods. Process of raw materials beneficiation ... -
New technology for mineral deposits prediction to identify prospective areas in the Zhezkazgan ore region
(Dnipro University of Technology, 2021-06-30)Purpose. Exploration and predicting the prospective areas in the Zhezkazgan ore region to set up detailed prospecting and evaluation works using new integrated technologies of prediction constructions in the mineral ... -
Factors influencing the flooding process of former coal open-pits
(Dnipro University of Technology, 2021-06-30)Purpose. This study aims to identify the main factors that influence the flooding process of the remaining gaps of open-pits comprising essentially the velocity and duration of flooding, but also the stability of in situ ... -
New theory for the rock mass destruction by blasting
(Dnipro University of Technology, 2021-06-30)Purpose. To develop a new theory for the rocks destruction by blasting using a description of the formation processes of zones with various mass state around the charging cavity. Methods. The new theory for the rock mass ... -
Potential for increasing the efficiency of design processes for mining the solid mineral deposits based on digitalization and advanced analytics
(Dnipro University of Technology, 2021-06-30)Purpose. The research purpose is to develop and adapt the existing scientific-methodological, as well as software and information base for managing the geotechnological complexes to implement the process approach at the ... -
Studying the influence of the carbon dioxide injection period duration on the gas recovery factor during the gas condensate fields development under water drive
(Dnipro University of Technology, 2021-06-30)Purpose. Studying the process of carbon dioxide injection at the boundary of the initial gas-water contact in order to slow down the formation water inflow into producing reservoirs and increase the final hydrocarbon ... -
Quality evaluation and loss estimation at gravel quarries around the Qena Governorate, Egypt: A case study
(Dnipro University of Technology, 2021-06-30)Purpose. In recent years in Egypt there has been a significant increase in the demand for building materials, particularly gravel which is employed in buildings, the base layer for road construction, and other industries. ...