State analysis and basic principles of reproduction state fund of operating coal mines territories

https://doi.org/10.53939/1560-5655_2024_1_43 PDF Maidukov G.L., Bolbat V.N., Grigoryuk M.E. Abstract: The results of the analysis of the technical and economic state of the mine fund of the existing mines of the Donetsk People’s Republic are presented, options for possible reform of the industry in accordance with the structure of its economy are described. Key words: mining;…

NATURAL AND ANTHROPOGENIC FORMATION OF CURRENTLY UNACCOUNTED RAW MATERIAL BASE OF METALS, CREATING DEPOSITS OF A NEW TYPE

PDF https://doi.org/10.53939/1560-5655_2022_4_60 Marat Bitimbaev, Mirgali Kunayev, Khali Yusupov, Zhanat Alisheva Annotation. Ore – natural deposition of chemical elements in the native or mineral-forming form, caused by the action of geological processes and their accompanying geochemical regularities, in which the concentration of some chemical elements reaches a value sufficient for cost-effective extraction in a given period….

STUDY OF CAPILLARY-POROUS COATINGS USED IN POWER INSTALLATIONS

PDF https://doi.org/10.53939/1560-5655_2022_4_51 Genbach A.A., Jamankulova N.O. Abstract. This article has developed a physical model for the generation of single vapor bubbles in separate cells of a capillary-porous coating. The individual characteristics of bubbles are important for explaining the occurrence and development of cracks, damage to parts and assemblies of power plants. Solution of problem on…

Zoning of quarry and mine fields according to categories of drillability and explosiveness, in order to reduce the cost of drilling and blasting by 20% or more

PDF https://doi.org/10.53939/1560-5655_2022_3_9 Igizbaev R.K., Igizbaev M.K., Igizbaev K.B., Mager A.N. Abstract. Mathematical models (theory) have been developed, surfaces of the lowest values of the criteria for drillability and explosibility of ores and rocks of curvilinear-anisotropic rock massifs of ore deposits, and a method for zoning quarry and mine fields by categories of drillability and explosibility….

Features of characteristics and composition of oil sands of Kazakhstan

МРНТИ 52.47.23                                                                                       №2 (2021 г.) Yermekova A.S., Tileuberdi Ye., Ongarbayev Ye.K., Masalimova B.K. The…

Current state and trends of drilling-and-blasting development on mining companies in Kazakhstan, ways to improve the blasting technologies

МРНТИ 52.13.07                                                                                           №2 (2021г.) Nurlybaev R.О The article presents some research results,…

Analysis of sludge particles carried out by drilling mud

МРНТИ 52.13.23                                                                                №1 (2021г.) PDF Ratov B.T., Beletskiy M.T., Delikesheva D.N.   An imperfect removal of…

Design parameters of flap bit for drilling large diameter wells

МРНТИ 52.13.07                                                                              №1 (2021г.) PDF Ratov B.Т., Fedorov B.V., Ruslykova-Kupriyanova I.А., Kosminov А.S.   From the practice…

Investigation of changes in the activity of the leaching solution over time after treatment with a cavitator

МРНТИ 52.13.19                                                                                           №1 (2021г.) PDF Yussupov Kh.A, Aben E.Kh, Omirgali A.K.,…

Safe and rational development of the bowels of the earth by deep quarries

МРНТИ 52.13.19                                                                                                    №4 (2020г.) Igigbaev R.K.,…