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Transportation of concentration and leaching tailings in underground mining of metal deposits
(National Mining University, 2019-06-30)
Purpose. The article aims to substantiate efficient parameters of resource-saving technological processes ensuring optimal environmental and economic indices of concrete mixtures transportation under the force mode and ...
Statutory and regulatory requirements in the process of mineral mining in Ukraine. Review and analysis
(National Mining University, 2019-06-30)
Purpose. Compliance of statutory and regulatory requirements as for mineral mining, made while subsurface using, mines inspectorating, bringing to responsibility, and creating prerequisites for providing legal guarantees ...
Numerical modelling of the effect of temperature variation on stope stability in Bushveld Igneous Complex
(National Mining University, 2019-06-30)
Purpose. This paper presents the result of the research carried out on the effect of increasing temperature and stresses with depth of mining on the stability of stope within the Bushveld Igneous Complex (BIC), where the ...
Assurance of guaranteed atmosphere air quality for a point emission source
(National Mining University, 2019-06-30)
Purpose. To solve the task of assessing the components of the guaranteed atmosphere air quality PMPj, PMP depending the maximum pollutant concentrations for a point source of emissions at the stage of designing in various ...
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 ...
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 ...
Economic criteria for optimizing the number and load factor of mining transformers
(National Mining University, 2019-06-30)
Purpose. This article discusses how to choose the optimal number and load factor, respectively the economic power in the first year of mining power transformers operation. The analysis is carried out based on technical-economic ...
Laboratory studies of a high-strength roof bolting by means of self-extending mixtures
(National Mining University, 2019-06-30)
Purpose is to analyze parameters of a new method to fasten roof bolts with the help of nonadhesive mixtures extending while hardening along with the development of high expansion pressures.
Methods. The research, concerning ...
Use of thermal and magnetic devices for prevention of asphaltene, resin, and wax deposits on oil equipment surfaces
(National Mining University, 2019-06-30)
Purpose. To substantiate the advantages of using a multi-level externally insulated complex of magneto-thermal dewaxing which is located in the oil well and improves production of the formation fluid with high content of ...
Distribution of mineral extraction revenue: overview of international practice
(National Mining University, 2019-06-30)
Purpose. To study basic principles and conditions of the efficiency of the system to redistribute mineral extraction revenue including the countries with lower levels of welfare.
Methods. The research applies a method of ...