Volume 13, Issue 3
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Останні додані
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Predicting remaining lifetime of drill pipes basing upon the fatigue crack kinetics within a pre-critical period
(National Mining University, 2019-09-30)Purpose is to determine regularities of the development of corrosive fatigue cracks in terms of high-strength drill pipes. Methods. Basing upon the approaches of the material failure mechanics, the crack has been characterized ... -
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. ... -
Preliminary assessment of roadheaders efficiency based on empirical methods and index of equivalent rock strength
(National Mining University, 2019-09-30)Purpose. The choice of a proper roadheader is a critically important step in planning of a project or some of its stages. Nowadays various manufacturers produce numerous models of these vehicles, hence it is unreasonable ... -
Optimization of position of the cyclical-and-continuous method complexes when cleaning-up the deep iron ore quarries
(National Mining University, 2019-09-30)Purpose. An algorithm development for calculating the optimum depth for cyclical-and-continuous method schemes introduction when cleaning-up the deep iron ore quarries. Methods. When developing an algorithm for calculating ... -
Investigation of the dust formation process when hoisting the uranium ores with a bucket
(National Mining University, 2019-09-30)Purpose. Determining the possible level of air dustiness during the bucket hoisting of uranium ores along the shaft “Holovnyi” of the mine “Novokostiantynivska”, SE “VostGOK”. Methods. To determine the level of air ... -
Selecting a variant to allocate a plant producing shotcrete while implementing method of “wet” pneumatic concrete placing in Orlovskaia mine
(National Mining University, 2019-09-30)Purpose. Mining and geological conditions are complicated due to the decreased level of mining within deposits of West Kazakhstan. It results in significant increase in the amount of metal framed support which cannot always ... -
Risk assessment of blasting operations in open pit mines using FAHP method
(National Mining University, 2019-09-30)Purpose. In the mining blasting operation, fragmentation is the most important output. Fly rock, ground vibration, air blast, and environmental effects are detrimental effects of blasting operations. Identifying and ranking ... -
Restoration of the tribotechnical pairs in equipment of mining industry
(National Mining University, 2019-09-30)Purpose. Substantiation of the possibilities and development of technology for the restoration of the worn-out tribotechnical pairs of mining equipment by methods of hot radial stamping in powder metallurgy using technogenic ... -
Typomorphic characteristics of apatite morphology of carbonate-bearing variations of complex ores in the context of Kovdor deposit
(National Mining University, 2019-09-30)Purpose. A comprehensive analysis of apatite morphology in carbonate-bearing variations of complex ores in the context of Kovdor deposit as an important typomorphic characteristic of a mineral being of high genetic and ... -
Solving the tasks of subsurface resources management in GIS RAPID environment
(National Mining University, 2019-09-30)Purpose. Solving the tasks of subsurface resources management based on the created GIS RAPID geoinformation technology. Methods. Close spatial relationships of lineament network characteristics and earthquake epicenters ... -
Application features of the surface laser scanning technology when solving the main tasks of surveying support for reclamation
(National Mining University, 2019-09-30)Purpose. Study of the effectiveness of topographical survey methods when solving the main tasks of surveying support for the disturbed lands reclamation. Methods. Comparative analysis of the topographical survey results, ... -
Overview of technologies for constructing the facilities at the Dniester pumped storage power station
(National Mining University, 2019-09-30)Purpose. Perform an overview of the construction technologies and substantiate the effectiveness of the Ukrainian experience in building a pumped storage power station (PSPS) on the Dniester River in difficult engineerin ... -
Method for calculation of drilling-and-blasting operations parameters for emulsion explosives
(National Mining University, 2019-09-30)Purpose. Development of a new method for calculation of drilling-and-blasting operations parameters during underground mining with application of emulsion explosives taking into account their energy characteristics as well ... -
Improving rock classification in terms of explosivity
(National Mining University, 2019-09-30)Purpose. To improve rock classification in terms of explosivity relying upon the detailed analysis of characteristics of rating classifications available in the Russian Federation and in the world. Methods. Complex approach ... -
Generalization of trends in the influence of geomechanics factors on the choice of operation modes for the fastening system in the preparatory mine workings
(National Mining University, 2019-09-30)Purpose. Substantiation of the mechanism of loading the preparatory mine working support to optimize its deformation-strength characteristics based on the calculation of the stress-strain state of the “massif – support” ...
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