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Effect of rocks displacement activation on the formation of the surface trough during anthracite seams extraction
(National Mining University, 2017-06-30)
Purpose. To define peculiarities related to the formation of the dynamic and stationary half-troughs under the influence of anthracite seam extraction by adjacent faces.
Methods. To establish the parameters of the surface ...
Analysis of gas hydrate deposits development by applying elements of hydraulic borehole mining technology
(National Mining University, 2017-06-30)
Purpose. To substantiate and develop the principal schematics suitable for the existing technological level and method of gas hydrates production from the offshore fields.
Methods. Analysis of properties inherent to gas ...
Experience of metal deposits combined development for South African enterprises
(National Mining University, 2017-06-30)
Purpose. To solve technological and ecological problems of South Africa and other countries using the experience of Russian, Kazakh and Ukrainian miners in mining metals by the combination of traditional and new technologies. ...
Modeling hydrodynamics of the flushing fluid intermittent flow in the hydraulic system of the diamond bit
(National Mining University, 2017-06-30)
Purpose. To study the effect produced by the intermittent flushing on hydrodynamic processes in the hydraulic system of a diamond bit.
Methods. Mathematical modeling methods and CFD experiment.
Findings. A mathematical ...
Evolution of cracks in selvedge of the coal bed during its stationary working
(National Mining University, 2017-06-30)
Purpose. To study rupturing of the coal/rock seam selvedge by natural gas-filled cracks as phenomena that prepare and initiate sudden outbursts of coal, rock, and gas during the steady movement of the face.
Methods. The ...
Ecological and technological aspects of iron-ore underground mining
(National Mining University, 2017-06-30)
Purpose. To substantiate drilling-and-blasting technologies allowing to reduce the amount of hazardous substances affecting the level of ecological safety during underground ore mining.
Methods. The laboratory research ...
Distant interaction of rock mass clusters around underground opening
(National Mining University, 2017-06-30)
Purpose. To experimentally prove the fact of distant interaction between rock clusters during the irreversible displacements of rock mass. Disintegration of the rock mass does not necessarily imply loss in underground ...
Analysis of magnetic treatment of production fluid with high content of asphalt-resin-paraffin deposits
(National Mining University, 2017-06-30)
Purpose. Justification of magnetic field application in order to prevent formation of asphalt-resin-paraffin deposits (ARPD) in oil and gas equipment, and consider some current views on the state of ARPD problem in oilfield ...
Scientific and technical fundamentals for explosive destruction of the mass composed of rocks with different hardness
(National Mining University, 2017-06-30)
Purpose. To develop the technology for explosive destruction of solid inclusions in the mass of rocks with different hardness on the basis of established correlations between changes in the radius of hard streaks fragmenting, ...
Modeling the drainage facilities operation at the prospective construction site on the Dnipro floodland
(National Mining University, 2017-06-30)
Purpose. To carry out predictive assessment of the hydrodynamic regime at the prospective construction site on the Dnipro floodland in order to choose an expedient drainage system and substantiate the drainage parameters ...