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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 ...
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” ...
Engineering characteristics of Egyptian limestone
(National Mining University, 2019-06-30)
Purpose. Study of physical properties such as porosity, density and mechanical properties such as compressive strength and tensile strength of Egyptian limestone based on experimental investigations.
Methods. In this paper ...
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 ...
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 ...
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 ...
In-ground vibration propagation characteristics during underground blasting
(National Mining University, 2019-12-30)
Purpose. In this study, we investigated the vibration propagation characteristics in ground caused by the explosion pressures during ground and underground blasting. In addition, the use of Styrofoam as a simulation medium, ...
The influence of rigidity of the collapsed roof rocks in the mined-out space on the state of the preparatory mine workings
(National Mining University, 2019-06-30)
Purpose. The substantiation of accounting the deformation-strength characteristics of the collapsed rocks and the rocks consolidating near the reusable preparatory mine working of the mined-out space to optimize the loading ...
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. ...