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Now showing items 11-20 of 58
Non-destructive testing of rock bolt fastening as an element of monitoring the state of mine workings
(National Mining University, 2019-03-30)
Purpose. To substantiate the informative parameter, to develop the method and equipment for non-destructive testing (NDT) of rock bolt fastening, as an element of geomechanical monitoring of the mine workings state.
Methods. ...
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 ...
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, ...