- 21. Research on occurrence features and ways to improve the quality of productive hydrocarbon horizons demarcation
- (Content №3 2024)
- ... filtration-capacitance characteristics of the reservoir rocks, to develop effective technological fastening schemes for the delimitation of closely located different-pressure and different-saturated horizons ...
- Created on 28 June 2024
- 22. Mathematical modeling of a magnetic gear for an autonomous wind turbine
- (Content №2 2024)
- ... of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Kyiv, Ukraine, e-mail: mojaverockThis email address is being protected from spambots. You need JavaScript enabled to view it. D.V.Tsyplenkov, orcid.org/0000-0002-0378-5400, Dnipro University of Technology, Dnipro, Ukraine, ...
- Created on 01 May 2024
- 23. Characteristics of elasticity, frequency, and stability of plate connecting assemblies for vibrating machines
- (Content №2 2024)
- ... of impact energy and rock-drilling efficiency in vibro-impact drilling. Journal of Energy Resources Technology, 144(2), 023201. https://doi.org/10.1115/1.4050881. 12. Kovalevska, I., Samusia, V., Kolosov, ...
- Created on 01 May 2024
- 24. Drilling wells taking into account the dynamic properties of rocks
- (Content №2 2024)
- ... is possible by installing the cavitation hydraulic vibrator in the drill string in front of the rock-cutting tool. Purpose. Evaluation of resonant modes (frequencies of oscillations) for the dynamic ...
- Created on 01 May 2024
- 25. Container technology for transporting rock masses in quarries
- (Content №2 2024)
- ... for moving rock mass for open-pit mining. A new technology for container transportation of rock mass in containers is proposed without the construction of additional transport communications in the quarry ...
- Created on 01 May 2024
- 26. Assessment of the state of the rock mass around the crosscuts under additional deformation disturbances
- (Content №2 2024)
- ... (2): 032 - 037 https://doi.org/10.33271/nvngu/2024-2/032 Abstract: Purpose. Assessment of the level of disturbance of the stress state of the rock mass around the crosscut of the depth of 545 m when ...
- Created on 01 May 2024
- 27. Formation of prospecting criteria for copper-porphyry deposits based on the construction of reference models
- (Content №2 2024)
- ... “parquet” fracturing in granite bodies and in the area of volcanogenic and sedimentary strata development has been identified, as well as structural lines indicating the strike of rock layers. Originality. ...
- Created on 01 May 2024
- 28. Three-dimensional density model of the mantle beneath the Ukrainian shield
- (Content №2 2024)
- ... Kern, H., & Tubia, J. M. (1993). Pressure and temperature dependence of P- and S-wave velocities, seismic anisotropy and density of sheared rocks from the Sierra Alpujata massif (Ronda peridotites, ...
- Created on 01 May 2024
- 29. Assessment of the influence of the surface layer of coals on gas-dynamic phenomena in the coal seam
- (Content №2 2024)
- ... Boiko, Ya. N., Rubinskii, A. A., & Rixnichenko, A. I. (2008). Emissions of coal, rock in the mines of Donbass in 1906–2007. Donetsk: SPD Dmitrenko. Retrieved from https://drive.google.com/file/d/1OSLAoEsmOLsLdI0wFodUl3-fb5JS5pk4/view. ...
- Created on 01 May 2024
- 30. Testing the fragmentation of railway ballast material by laboratory methods using Proctor compactor
- (Content №1 2024)
- ... Purpose. The development of a new method for measuring rock material fracture that is consistent with widely used standards while also being more comparable to real-world railway operating conditions. ...
- Created on 29 February 2024
- 31. Advantages of using CONCRETE CANVAS materials in railway track construction
- (Content №1 2024)
- ... 89-100. https://doi.org/10.5604/01.3001.0009.7389. 6. Czinder, B., Vásárhelyi, B., & Török, Á. (2021). Long-term abrasion of rocks assessed by micro-Deval tests and estimation of the abrasion process ...
- Created on 29 February 2024
- 32. Improvement of the methodology for calculating the expected drilling speed with PDC chisels
- (Content №1 2024)
- ... 031 https://doi.org/10.33271/nvngu/2024-1/026 Abstract: Purpose. Determination of the dependence of the depth of penetration of the PDC cutter into the bottom hole rock, taking into account its geometric ...
- Created on 29 February 2024
- 33. Influence of the rock mass structure and the blasting technique on blast results in the Heliopolis quarry
- (Content №1 2024)
- ... which will help the systematic analysis of the parameters influencing the blasting plan and a better understanding of the mechanisms of fragmentation of rocks with explosives. Methodology. The approach ...
- Created on 29 February 2024
- 34. The choice of optimal methods for the development of water wells in the conditions of the Tonirekshin field (Kazakhstan)
- (Content №1 2024)
- ... 5. Ha, K., An, H., Lee, E., Lee, S., Kim, H. C., & Ko, K.-S. (2022). Evaluation of Well Improvement and Water Quality Change before and after Air Surging in Bedrock Aquifers. Water, 14(14), 2233. ...
- Created on 29 February 2024
- 35. Establishing the influence of the quarry depth on the indicators of cyclic flow technology during the development of non-ore deposits
- (Content №1 2024)
- ... and Energy security, 6(2), 61-77. https://doi.org/10.1002/FES3.109. 4. Ishchenko, K., Konoval, V., & Lohvyna, L. (2019). An effective way to rock mass preparation on metallic and nonmetallic quarries ...
- Created on 29 February 2024
- 36. Assessment of coal mining impact on the geoecological transformation of the Emerald network ecosystem
- (Content №6 2023)
- ... 7. Lozynskyi, V., Saik, P., Petlovanyi, M., Sai, K., & Malanchuk, Y. (2018). Analytical Research of the Stress-Deformed State in the Rock Massif around Faulting. International Journal of Engineering ...
- Created on 23 December 2023
- 37. A methodological approach to assessing the durability of welded structures of screens using SolidWorks Simulation software
- (Content №6 2023)
- ... Kabakova, L., & Livak, O. (2019). The feasibility evaluation of using cyclic thermal effect in the rock-cutting tools during drilling hard rock. E3S Web of Conferences, 109, 00026. https://doi.org/10.1051/e3sconf/201910900026. ...
- Created on 23 December 2023
- 38. Efficiency and seismic safety of constructing underground structures in complex rock masses
- (Content №6 2023)
- ... of rock conditions in face, experiments are conducted on rock samples taken from blasting sites, more detailed data are obtained on rock properties, type and direction of development of crack systems along ...
- Created on 23 December 2023
- 39. Analysis and prediction of surface settlements during the digging of underground mining works (Algeria)
- (Content №6 2023)
- ... study was conducted in two main stages; a geotechnical characterization in situ and in the laboratory to determine the necessary properties of the soil and rock mass used in our model, and in a second ...
- Created on 23 December 2023
- 40. Data analysis solutions to improve blasting efficiency in mining
- (Content №6 2023)
- ... detonate after differential time intervals. This solution creates interference between stress waves causing the durability of rock structures to be reduced and the blasting efficiency to be improved. Although ...
- Created on 23 December 2023