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Improving the efficiency of blasting operations in mines with the help of emulsion explosives
(National Mining University, 2018-03-30)
Purpose. To improve the efficiency of blasting operations in mines taking into consideration the upgrading of equipment used to charge blastholes as well as application of high-productive mining equipment of new ...
Selecting the method of gas hydrate deposits development in terms of the regularities of their formation
(National Mining University, 2018-03-30)
Purpose. To establish and show regularities of gas hydrates fields distribution in the World Ocean for the development of flow diagrams of methane extraction depending on genetic structures and the composition of the host ...
Development of a research methodology and analysis of the stress state of a parting under the joint and downward mining of coal seams
(National Mining University, 2018-03-30)
Purpose. The investigation of the stress-strain state (SSS) of a parting under the joint and downward mining of coal seams.
Methods. The studies have been carried out on the basis of a computational experiment by means ...
Hydro and geomechanical stability assessment of the bund wall bottom slope of the Dniprovsk tailing dump
(National Mining University, 2018-03-30)
Purpose. The objective is to assess the stability of bund wall components of a hydro-technical structure under the conditions of a tailing dump which hydrodynamic mode has been disrupted during operation. The specified ...
Simulation of the support-enclosing rock mass interaction for deep mining
(National Mining University, 2018-03-30)
Purpose. To develop analytical model for a support-enclosing rock interaction to determine parameters for operational stability of deep mine workings while decreasing metal consumption and increasing efficient use of ...
Theoretical background of rock failure at hydraulic seam fracture and aftereffect analysis
(National Mining University, 2018-09-30)
Purpose. Theoretical substantiation of the methodological foundations of possible effects and aftereffects identification of the hydraulic seam fracture (HSF) technology.
Methods. The research structure and procedure ...
Estimation of the wear rate associated with ball mill of Mahd Ad Dahab Gold Mine, Saudi Arabia (KSA)
(National Mining University, 2018-09-30)
Purpose. This study aims to estimate the wear of the middle chrome grinding balls in both dry and wet grinding media. The selected ball mill for this study is located at Mahd Ad Dahab Gold Mine, Saudi Arabia.
Methods. The ...
Reconstruction of the primary organic productivity of Campano-Maastrichtian shales of Nkporo and Aptian-Albian Awi Formations, Calabar Flank using pigment yield index
(National Mining University, 2018-09-30)
Purpose. To derive the paleo organic productivity exemplified by the pigment yield index in order to resolve the controversy on the petroleum potentials of Nkporo and Awi Formations in Calabar Flank, Southeastern ...
Determination of the suitable drilling operating parameters in different geological formations El-Sharara Oil Field (South-Western Libya)
(National Mining University, 2018-09-30)
Purpose. The objective of this study is to determine the best operating conditions for the most notable drilling
parameters (i.e. weight on bit (WOB), rotary drilling speed (RPM), and characteristics of drilling fluid) ...
Power consumption of rock decomposition process during diamond core drilling using pulse flushing
(National Mining University, 2018-09-30)
Purpose. To study the impact of pulse flushing on the power consumption of rock decomposition during diamond core drilling.
Methods. Theoretical analysis, processing of the obtained experimental data.
Findings. The ...