- 1. Managing the process of underground coal gasification
- (Content №6 2023)
- ... coal seam gasification. Its constituent segments are a stand, branches for supplying blast and gas-outlet mixtures, as well as a flow control system. This setup makes it possible to model the coal seam ...
- Created on 23 December 2023
- 2. Evaluation of coal mines’ rock mass gas permeability in the equivalent stress zone
- (Content №5 2023)
- ... The ability to use a full “stress-strain” diagram for detecting and localising methane reservoirs during the coal seams excavation was proved during the research. It was found that the compaction threshold ...
- Created on 27 October 2023
- 3. Influence of the geotectonic regime on property formation of coal in the northern edges of the Donetsk basin
- (Content №5 2023)
- ... characteristics are given to the coal seams of the Northern Donbas. The peculiarities of the composition and quality of the coal of the deltaic-bog-marine formation have been determined for the first time ...
- Created on 27 October 2023
- 4. Geomechanical substantiation of parameters for safe completion of mining the coal reserves adjacent to main workings
- (Content №1 2023)
- ... of possible technological options for mining the coal seam, taking into account the preservation of operational state of main workings. Scientific calculations for determining the most expedient option ...
- Created on 25 February 2023
- 5. Predicting underground mining impact on the earth’s surface
- (Content №1 2023)
- ... was chosen in the area of lava mining along the coal seams of the Karaganda Formation of seams, starting from the K18 seam to the K10 seam, that is, a rock mass with a depth of more than 700 m. Previously, ...
- Created on 25 February 2023
- 6. Determining the parameters of stratification cavity in rock mass to extract mine methane
- (Content №6 2022)
- ... parameters of load characteristics for typical rock layers from the coal seam up to the surface. The abovementioned makes it possible to identify areas of rock stratification, coal bench being flaked away, ...
- Created on 25 December 2022
- 7. Effect of geological and technological parameters on the convergence in a stope
- (Content №6 2021)
- ... position relative to the coal seam along the length of the extraction column based on the results of numerical experiments and forecast probable zones of rigid settlement of the powered support units according ...
- Created on 29 December 2021
- 8. Tectonic factors of impurity elements accumulation at the Shubarkol coal deposit (Kazakhstan)
- (Content №5 2021)
- ... rocks enriched with impurity elements and the conditions needed for its leaching and transportation to the coal seam were analyzed. It was found that the coals in individual samples have average concentrations ...
- Created on 29 October 2021
- 9. Developing technological schemes of driving workings with controlled resistance of contours
- (Mining)
- ... Methodology. The study algorithm is represented in the sequence of stages considering the depth of the excavation, the orientation of the excavation relative to the coal seam, the structure of the ...
- Created on 13 June 2019
- 10. Substantiation into “rock massive – underground gasifier” system adaptability of Solenovskyi site in the Donetsk coal basin
- (Mining)
- ... adjacent roof level of the coal seam were established, taking into account gasification channel length (30 and 60 m) and the velocity of combustion face advance from 0.5 to 2.0 m/day. For the ...
- Created on 03 July 2018
- 11. Displacement of undermining rock mass above the moving longwall
- (Mining)
- Authors: O.S.Kuchin, Dr. Sc. (Tech.), Assoc. Prof.,State Higher Educational Institution “National Mining University”, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.; This email address is being protected from spambots. You need JavaScript enabled to view it. M.V.Chemakina,State ...
- Created on 16 March 2017
- 12. Forming the bilayer artificially created shell of georeactor in underground coal well gasification
- (Mining)
- ... of the coal seam thickness, depth of mining and composition of blowing mixture were realized. The results were summarized for different geological conditions as dependencies of movements, destruction zones ...
- Created on 04 February 2016
- 13. Typification and areal distribution of splittings in coal seams of the Lviv-Volyn basin
- (Geology)
- ... nature of splittings of coal seams we have used the methods of paleoreconstruction and comparison of the thickness of initial organic matter in the compact part of the coal seam with such in coal-free ...
- Created on 05 November 2015
- 14. Forecast of disjunctives based on mathematical interpretation of acoustic signal phase characteristics
- (Geotechnical and mining mechanical engineering, machine building)
- ... the coal seam mined with plow technology under West Donbass geological conditions. Practical value. The reliability of the hidden disjunctives forecast and rock mass tomography study in the “Stepova” ...
- Created on 27 October 2015
- 15. Petrographic composition of coal seams of mine «Lubelskaya no. 1–2» of the Lvov-Volyn basin and the basic laws of its change
- (Geology)
- ... change in the stratigraphic section have been established as well as in area of distribution of the coal seams. References: 1. Дроздник И.Д. О квалифицированном использовании малометаморфизованных ...
- Created on 13 August 2013
- 16. About estimation of prognosis degree of outburst hazard of coal seams as the depth of mine works increases
- (Mining)
- ... model, offered by IGTM NAN of Ukraine, the problem of the outburst hazard estimation of the coal seams can be decided. ...
- Created on 04 January 2013
- 17. Results of the 3-d simulation of the transversaly isotopic rock mass stress state around a longwall
- (Mining)
- ... the stratified transversely isotropic rock mass, are presented in the article. The stress curve along a longwall depending on stope attitude along an extraction pillar allows to assess the coal seam’s ...
- Created on 24 December 2012
- 18. Substantiation of flowsheets of experimental mine gas generator
- (Mining)
- ... technological schemes of underground coal gasification are considered. After conducted researches are set that the coal seam opening by two vertical boreholes and mechanical crosscut from the underground ...
- Created on 21 December 2012
- 19. Determination of the rational place for laying the vent line using numerical models
- (Mining)
- ... Regularities of changes in the marginal state of the structured roof of the coal seam during steady failure / Shashenko A.N., Khozyaykina N.V. // Naukovyi visnyk NGU – Dnipropetrovsk: 2004. No.4. – P. ...
- Created on 20 November 2012
- 20. Features of formation of technogenic permeability in roof of coal layer during underground gasification of coal
- (Mining)
- ... in the zone affected by the gas generator. The increase of conductivity of sandy-clayey rocks enclosing the coal seam has been estimated for the first time taking into account the range of volumetric strain ...
- Created on 16 November 2012