No. 3 (vol.26), May-June 2026

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David Rodionovich Kaplunov: scientist, educator, founder of a scientific school

DOI: 10.56195/20793332-2026-26-3-5-8

Yuri V. Dmitrak, Natalya A. Miletenko

Institute of Comprehensive Exploitation of Mineral Resources Russian Academy of Sciences, Moscow, Russian Federation

p. 5-8

For citation:: Дмитрак Ю.В., Милетенко Н.А. Давид Родионович Каплунов: ученый, педагог, создатель научной школы. Маркшейдерия и недропользование. 2026; 26 (3): 5-8. https://doi.org/10.56195/20793332-2026-26-3-5-8.

Study of the influence of microwaves on selective disintegration of sulfide ore particles

DOI: 10.56195/20793332-2026-26-3-9-14

R. S. Vopilin, V. A. Iodis

Research Geotechnological Center, Far Eastern Branch of Russian Academy of Sciences (RGC FEB RAS), Petropavlovsk-Kamchatsky, Russian Federation

p. 9-14

Abstract:: The aim of this study was to investigate the effect of microwaves of varying volumetric intensities (3, 4,54, and 5,3 W/cm³) on the selective disintegration of cobalt-copper-nickel sulfide ore particles from the Shanuch deposit at varying exposure times (60 – 480 s). The experiment demonstrated that microwave treatment with volumetric intensities of 3 W/cm³ (180 s) and 4,54 W/cm³ (360 s) does not cause visually visible structural changes on the surface of the sulfide ore particles. Increasing the volumetric intensity to 5 W/cm³ for 300 s caused both the opening of existing microcracks and their formation. Experiments showed that the ore temperature at a volumetric radiation intensity of 3 W/cm³ reached 426,2°C after 480 s of treatment. At 4,54 W/cm³, the ore temperature reached 476,4°C after 360 s. At maximum intensity, the temperature reached 468,2°C after 300 s. With further microwave treatment at these intensities, a nonlinear increase in temperature was recorded, followed by a slowdown and stabilization, indicating the onset of phase transformations in the ore. The dependence of the ore’s specific heat capacity on the process duration was determined at these three volumetric intensities. The treatment of particles of cobalt-copper-nickel sulfide ore from the Shanuch deposit with microwave radiation will facilitate subsequent processing by opening, forming microcracks and increasing the contact surface, in particular by intensifying the process of bacterial-chemical leaching, with the aim of isolating target components from them.
Keywords:: sulfide ore, microwave wave, microwave radiation, volumetric radiation intensity, duration, microcrack, thermomechanical stresses, thermal expansion
For citation:: Vopilin R.S., Iodis V.A. Study of the influence of microwaves on selective disintegration of sulfide ore particles. Mine Surveying and Subsurface Use. 2026; 26 (3): 9-14. (In Russ.). https://doi.org/10.56195/20793332-2026-26-3-9-14.

Study of changes in the morphology of the oxidized surface of sulfide ore during its ultrasonic treatment

DOI: 10.56195/20793332-2026-26-3-15-20

A. A. Avreitsevich, V. A. Iodis

Research Geotechnological Center, Far Eastern Branch of Russian Academy of Sciences (RGC FEB RAS), Petropavlovsk-Kamchatsky, Russian Federation

p. 15-20

Abstract:: The study was conducted to investigate changes in the morphology of atmospherically oxidized sulfide ore surfaces after ultrasonic treatment. Studies of the surface morphology of polished sections confirmed that ultrasonic treatment removes passivating films and significantly alters the surface morphology, causing damage and leading to the formation of defects such as channels and craters. The experiment showed that ultrasonic treatment of polished sections with a volumetric intensity of 0,44 to 0,78 W/cm³ for 15 minutes only partially removes oxide films from the surface of pyrrhotite and chalcopyrite. At a volumetric intensity of 0,78 W/ cm³ to 1 W/cm³, the oxide films are completely destroyed, and pyrrhotite and chalcopyrite undergo significant changes in morphology, forming numerous defects. With a maximum volumetric oscillation intensity of 1 W/cm3 and an increase in the processing time to 30 minutes, the number of channels and craters on the surface increases. The results of the research show that ultrasonic treatment of ore pulps can increase the rate of bacterial-chemical oxidation by significantly increasing the number of defects in the surface layers of the crystal lattice, increasing its contact area and shape. This will enable the development of innovative, cost-effective technologies for processing sulphide ores.
Keywords:: sulfide ore, ultrasound, volumetric radiation intensity, duration, polished section, oxide (passivating) film, surface morphology, defect
For citation:: Avreitsevich A.A., Iodis V.A. Study of changes in the morphology of the oxidized surface of sulfide ore during its ultrasonic treatment. Mine Surveying and Subsurface Use. 2026; 26 (3): 15-20. (In Russ.). https://doi.org/10.56195/20793332-202626-3-15-20.

An algorithm for solving contact problems using deep machine learning technologies in mineral processing

DOI: 10.56195/20793332-2026-26-3-21-26

R. D. Pryazhevsky¹, V. A. Atrushkevich², E. Yu. Barmenkov¹

Federal State Budgetary Educational Institution of Higher Education, Russian State Geological Prospecting University named after Sergo Ordzhonikidze (MGRI), Moscow, Russian Federation
Institute of Comprehensive Exploitation of Mineral Resources Russian Academy of Sciences, Moscow, Russian Federation

p. 21-26

Abstract:: This paper develops and presents an algorithm for solving contact problems in solid mechanics using deep machine learning technologies. The method is based on the application of physically informed neural networks, which enables searching for solutions that directly satisfy systems of equilibrium differential equations and boundary conditions. A key feature of the proposed approach is the reduction of the original boundary value problem with one-sided contact constraints expressed as inequalities to an unconstrained optimization problem. For this purpose, a special loss function is constructed that incorporates the non-penetration and non-adhesion conditions into the neural network training procedure. The algorithm is demonstrated using representative examples of contact between a perfectly rigid stamp and elastic foundations modeled by Bernoulli-Euler and Timoshenko beams in a one-dimensional setting. It is shown that the method effectively determines both the sought-after displacement and pressure fields and the previously unknown contact region. The developed approach forms a computational basis for the creation of fast surrogate models relevant for modeling and optimizing mineral processing processes, such as crushing and grinding, in the context of energy conservation and crystal conservation.
Keywords:: contact problems, physically informed neural networks, beams, plates, machine learning, mathematical optimization, crystal conservation, crushing
For citation:: Pryazhevsky R.D., Atrushkevich V.A., Barmenkov E.Yu. An algorithm for solving contact problems using deep machine learning technologies in mineral processing. Mine Surveying and Subsurface Use. 2026; 26 (3): 21-26. (In Russ.). https://doi. org/10.56195/20793332-2026-26-3-21-26.

An acid-free method for increasing the oxidation-reduction potential of uranium in-situ leaching recycle solution

DOI: 10.56195/20793332-2026-26-3-27-32

R. А. Yusubaliev¹, Ye. S. Oryngozhin^2,3, M. K. Djexenov⁴, Ye. Ye. Oryngozha⁵, N. A. Miletenko⁶

National Engineering Academy of the Republic of Kazakhstan, Almaty, Republic of Kazakhstan
Institute of mining after D.A. Kunaevа, Almaty, Republic of Kazakhstan
Al-Farabi Kazakh national university, Almaty, Republic of Kazakhstan
Atyrau university named after H. Dosmukhamedova, Atyrau, Republic of Kazakhstan
Almaty University of Power Engineering and Telecommunications named after Gumarbek Daukeyev, Almaty, Republic of Kazakhstan
Academician Melnikov Institute of Comprehensive Exploitation of Mineral Resources (IPKON), Russian Academy of Sciences, Moscow, Russian Federation

p. 27-32

Abstract:: The development of Kazakhstan’s uranium mining industry is linked to addressing major scientific and practical challenges. Modern uranium mining is characterized by high dynamism and the occasional occurrence of radiation-hazardous situations that require rapid and effective solutions. Each deposit has its own specific characteristics, necessitating a certain amount of scientific research not only during the development of new deposits but also during the application of existing technical solutions. Since the process flowsheet used at the in-situ leaching sites in Kazakhstan involves the use of recirculating solutions containing several petrogenic elements (Na, Ka, Ca, Mg, Al, Fe), as well as Cl- and NO3 - ions, their impact on the change in ORP during interaction with carbonates in mineralized sulfuric acid solutions cannot be ignored. The interaction of sulfuric acid solutions with carbonates is accompanied by a significant increase in pH. In addition to simple metal ions and their sulfate complexes, well-known hydrocomplexes, as well as bicarbonate and carbonate complexes, appear in the solutions. This article presents an acid-free method for increasing the redox potential of uranium borehole leaching recycle solutions using ultrasound and describes the results of laboratory experiments confirming the high efficiency of the developed method.
Keywords:: uranium, underground leaching, oxidation-reduction potential, method, solution, efficiency
For citation:: Yusubaliev R.А., Oryngozhin Ye.S., Djexenov M.K., Oryngozha Ye.Ye., Miletenko N.A. An acid-free method for increasing the oxidation-reduction potential of uranium in-situ leaching recycle solution. Mine Surveying and Subsurface Use. 2026; 26 (3): 27-32. (In Russ.). https://doi.org/10.56195/20793332-2026-26-3-27-32.

Determination of «mining unit» rational parameters for the opencast mining conditions of phosphorite ore deposits

DOI: 10.56195/20793332-2026-26-3-33-38

A. Yu. Eroshev¹, S. I. Fomin²

VNII Galurgii JSC, Saint Petersburg, Russian Federation
Empress Catherine II Saint Petersburg Mining University, Saint Petersburg, Russian Federation

p. 33-38

Abstract:: The choice of opencast contours has a direct impact on productivity, the duration of field operation, and the volume of both industrially significant mineral reserves and overburden removed from the opencast mine. The parameters of the opencast’s working area serve as a determining factor in choosing the opening method, the location of the technological system, and the location of mining infrastructure facilities, including surface buildings, structures, and transport arteries. When deciding what to understand by a mining unit, one should proceed from the purposes for which this concept is introduced, and the objective mining and geological conditions of the field development. In an effort to achieve a real technical and economic effect resulting from loss and clogging control, the difference between mining units is insignificant, since control over the extraction of minerals must be carried out systematically, especially when mining ore - waste rock contacts. Monitoring the development of reserves only by comparing actual production figures with their planned or regulatory values, as is currently being done, cannot be effective regardless of whether it is carried out over the operational horizon or over the opencast as a whole. When determining a mining unit, it is necessary to take into account the expediency and cost-effectiveness of accounting for the extracted ore in terms of quantity and quality of mineral raw materials. The purpose of the study was to consider the techniques of definition the optimal mining unit during openсast mining for technical conditions of steeply dipping ore deposits. Mining-technical analysis to achieve a real technical and economic effect resulting from loss and clogging control, the difference between excavation units is insignificant, since control over the extraction of minerals must be carried out systematically, especially when mining ore - waste rock contacts. To determine the rational parameters of the opencast’s working area serve as a determining factor in choosing the opening method, the location of the technological system, and the location of mining infrastructure facilities, including surface buildings, structures, and transport arteries. The research results can be useful when designing and planning mining operations for the geological conditions of opencast phosphate deposits.
Keywords:: opencast mining, ore quality, optimal volume, ore deposits, mining unit, stripping ratio, economic loss, mineral dilution
For citation:: Eroshev A.Yu., Fomin S.I. Determination of «mining unit» rational parameters for the opencast mining conditions of phosphorite ore deposits. Mine Surveying and Subsurface Use. 2026; 26 (3): 33-38. (In Russ.). https://doi.org/10.56195/207933322026-26-3-33-38.

Justification of the capacity of the chamber ceiling during the development of flooded gypsum deposits

DOI: 10.56195/20793332-2026-26-3-39-44

А. N. Dulin, B. G. Doguzov

South Russian State Polytechnic University (NPI) named after M. I. Platov, Novocherkassk, Russian Federation

p. 39-44

Abstract:: The paper investigates the role of a protective gypsum pack left in the ceiling of chambers during a chamber-pillar system for the development of non-metallic deposits. There is an insufficient study of the issue during the development of sites with various fractures. The protective pack is considered as a key factor in waterproofing the treatment area from the Nizhnekazansky aquifers of the Bebyaevsky field. Studies have been conducted to establish the coefficients of structural weakening of the gypsum massif at the Bebyaevsky deposit, which are used in the proposed method for calculating safety pillars, taking into account the physical and mechanical properties of rocks and the depth of mining operations. Optimizing the thickness of the ceiling to 1.0 m depending on the fracturing of the array, it will allow additional extraction of up to 1610 m³ from one panel, which will significantly reduce losses without increasing production costs. This technique can be recommended for mining flooded gypsum deposits at depths up to 250 m.
Keywords:: gypsum, fracturing, karstification, water saturation, cavities, ceiling of the cameras
For citation:: Dulin А.N., Doguzov B.G. Justification of the capacity of the chamber ceiling during the development of flooded gypsum deposits. Mine Surveying and Subsurface Use. 2026; 26 (3): 39-44. (In Russ.). https://doi.org/10.56195/20793332-2026-263-39-44.

Parameters for degassing outburst-prone seams using hydraulic fracturing

DOI: 10.56195/20793332-2026-26-3-45-49

N. Yu. Troshkov

Kemerovo Branch of JSC «Research institute of rock mechanics and mine survey – Inter-branch research center «VNIMI», Kemerovo, Russian Federation

p. 45-49

Abstract:: Parameters for degassing outburst-prone seams using hydraulic fracturing are determined. It is proposed that the distance between seam drainage boreholes be determined based on the condition of reducing gas content to safe emission limits and taking into account the filtration properties of the coal. Dependencies are provided for calculating gas permeability coefficients depending on natural factors to determine the total amount of methane released into the drainage borehole. The results of studies on the relationship between injected fluid pressure, coal properties, and seam bedding conditions are presented. It has been established that the pressure of fluid injected into a seam depends on the physical properties of the coal, the depth, and the dip angle of the seam, and not just the burial depth. It is noted that the physical properties of the seam can be approximately accounted for by the average value of Poisson’s ratio and the yield of volatile substances.
Keywords:: degassing, outburst-prone seam, hydraulic fracturing, degassing well, gas content, gas permeability, methane, physical properties of coal
For citation:: Troshkov N.Yu. Parameters for degassing outburst-prone seams using hydraulic fracturing. Mine Surveying and Subsurface Use. 2026; 26 (3): 45-49. (In Russ.). https://doi.org/10.56195/20793332-2026-26-3-45-49.

Assessment of gas-dynamic hazard of coal seams depending on the heterogeneity of coal microstructure

DOI: 10.56195/20793332-2026-26-3-50-55

I. N. Gorshenkov

Institute of Comprehensive Exploitation of Mineral Resources of the Russian Academy of Sciences (ICEMR RAS), Moscow, Russian Federation

p. 50-55

Abstract:: An approach is proposed for the additional assessment of gas-dynamic hazard of coal seams based on the quantitative characterization of coal microstructure heterogeneity and its correlation with methane content. The study was carried out on coal samples collected from the working face of the Boldyrevsky seam at the S.M. Kirov mine, which exhibited differences in methane release rates under similar mining and geological conditions. The microstructure was analyzed using digital surface micrographs obtained by scanning electron microscopy, and image processing was performed in entropy – complexity coordinates. For the image series, the ranges of Shannon information entropy and statistical complexity were determined and subsequently compared with direct measurements of methane content (Q₁, Q₂, Q₃, Q_Σ). It is shown that microstructural heterogeneity is associated not only with methane accumulation and retention but also with its release behavior during stress unloading and coal failure. The combination of elevated methane content and a wide range of entropy and complexity values can be considered an additional indicator of potential gas-dynamic hazard. The obtained results confirm that coal microstructure analysis can serve as a supplementary tool for assessing gas-dynamic hazard of coal seams.
Keywords:: coal seam, methane content, coal microstructure, entropy – complexity, electron microscopy, methane filtration and diffusion, Kuzbass
For citation:: Gorshenkov I.N. Assessment of gas-dynamic hazard of coal seams depending on the heterogeneity of coal microstructure. Mine Surveying and Subsurface Use. 2026; 26 (3): 50-55. (In Russ.). https://doi.org/10.56195/20793332-2026-26-3-50-55.

Study of scale effect under uniaxial compression of rocks using the finite-discrete element method in the «PROROCK 2.0» software

DOI: 10.56195/20793332-2026-26-3-56-61

A. K. Kirsanov, A. S. Tkachenko, S. A. Bogomolov

Siberian Federal University, Krasnoyarsk, Russian Federation

p. 56-61

Abstract:: The paper presents the results of numerical modeling of the scale effect under uniaxial compression of homogeneous rock samples using the specialized software package PROROCK 2.0, which implements the finite-discrete element method. The aim of the study was to determine the patterns of variation in the strength characteristics of rocks depending on specimen size while maintaining identical physical and mechanical properties and loading conditions. The simulations were carried out for two types of rocks – marble and basalt. The obtained relationships revealed a decrease in strength with increasing specimen size, indicating the presence of a scale effect. It was established that the failure mechanism is brittle in nature. The results demonstrate the extent of the scale effect and highlight the necessity of accounting for it when transitioning from laboratory experiments to engineering calculations of rock mass stability.
Keywords:: rock strength, uniaxial compression, finite-discrete element method, rock failure, scale effect
For citation:: Kirsanov А.K., Tkachenko A.S., Bogomolov S.A. Study of scale effect under uniaxial compression of rocks using the finite-discrete element method in the «PROROCK 2.0» software. Mine Surveying and Subsurface Use. 2026; 26 (3): 56-61. (In Russ.). https://doi.org/10.56195/20793332-2026-26-3-56-61.

A mechanical-mathematical model for calculating the deformed state of the roof of uranium in-situ leaching

DOI: 10.56195/20793332-2026-26-3-62-67

Ye. S. Oryngozhin^1,2, R. A., Yusubaliev³, M. K. Djexenov⁴, Ye. Ye. Oryngozha⁵, N. A. Miletenko⁶

Institute of mining after D.A. Kunaevа, Almaty, Republic of Kazakhstan
Al-Farabi Kazakh national university, Almaty, Republic of Kazakhstan
National Engineering Academy of the Republic of Kazakhstan, Almaty, Republic of Kazakhstan
Atyrau university named after H. Dosmukhamedova, Atyrau, Republic of Kazakhstan
G. Daukeev Almaty University of Energy and Communications, Almaty, Republic of Kazakhstan
Academician Melnikov Institute of Comprehensive Exploitation of Mineral Resources - IPKON, Russian Academy of Sciences, Moscow, Russian Federation

p. 62-67

Abstract:: Uranium is a type of nuclear fuel and is considered a strategic material for military purposes and for ensuring national energy independence. Traditional mining involves extracting ore from the ground, crushing it, and processing it to obtain the desired minerals. In-situ leaching (ISL) technology, also known as solution mining, leaves the ore in situ and pumps liquids through it to leach the minerals. This article presents a mechanical and mathematical model for calculating the deformation state of the roof of uranium ISL chambers. During underground mining using the ISL method, the eroded rock mass experiences a complex set of alternating stresses and strains, leading to rock displacement and fracture. The formation of ISL chambers during erosion of a sedimentary rock mass leads to a disruption of the original stress state of the mass, rock deformation, and roof collapse of the chambers. The ISL cleaning chambers are developed in sectors around the production well. The sectors are developed by hydraulically flushing the rock with working fluid at opening angles of α_min ⇒ α_max, with washout radii of R_min ⇒ R_max, depending on the physical and mechanical properties of the rock and the stability of the exposed roof.
Keywords:: In-situ leaching, uranium, mechanical-mathematical model, deformed state, chamber roofs, stress, rock failure
For citation:: Oryngozhin Ye.S., Yusubaliev R.A., Jexenov M.K., Oryngozha Ye.Ye., Miletenko N.A. A mechanical-mathematical model for calculating the deformed state of the roof of uranium underground leaching chambers. Mine Surveying and Subsurface Use. 2026; 26 (3): 62-67. (In Russ.). https://doi.org/10.56195/20793332-2026-26-3-62-67.

Analysis and prospects for the integration of modern methods of remote geodetic monitoring of man-made structures

DOI: 10.56195/20793332-2026-26-3-68-73

E. V. Kaygorodova^1,2, M. S. Tutanova^1,2, О. V. Starostina², A. M. Kapshuk²

Siberian State University of Geosystems and Technologies, Novosibirsk, Russian Federation
Abylkas Saginov Karaganda Technical University, Karaganda, Republic of Kazakhstan

p. 68-73

Abstract:: The increasing scale of mining operations and anthropogenic impact on the geological environment make it necessary to ensure the safety of complex engineering structures such as open pits and spoil heaps. Deformation processes at these sites are highly dynamic and require rapid and accurate monitoring of their spatial position. Therefore, improving geodetic monitoring methods remains a priority research and practical task. This study aims to analyses the current state of remote geodetic monitoring methods for technogenic objects, identify their limitations, and determine promising directions for further development. A review and comparative analysis of domestic and international publications was carried out for satellite technologies, ground-based laser scanning (GLS), unmanned aerial systems, and satellite radar interferometry. The analysis showed that each method has specific advantages and limitations. GNSS provides high accuracy but is limited to discrete observation points. GLS delivers high-precision digital data for the visible surface of an object but is constrained by measurement range and survey conditions. UAS provide detailed areal information but are limited by observation frequency and accuracy. InSAR enables retrospective deformation analysis but is affected by atmospheric and geometric distortions. None of the considered methods is universal; therefore, their integrated application is the most promising direction.
Keywords:: technogenic object, geodetic monitoring, remote sensing methods, comprehensive integration, satellite interferometry, unmanned aerial vehicles, laser scanning, digital data
For citation:: Kaygorodova E.V., Tutanova M.S., Starostina О.V., Kapshuk A.M. Analysis and prospects for the integration of modern methods of remote geodetic monitoring of man-made structures. Mine Surveying аnd Subsurface Use. 2026; 26 (3): 68-73. (In Russ.). https://doi.org/10.56195/20793332-2026-26-3-68-73.

Justification of the technology of local impact hazard prediction using natural electromagnetic radiation in the underground conditions of the Skalisty mine in the Norilsk ore district

DOI: 10.56195/20793332-2026-26-3-74-79

S. M. Daniliev, O. M. Shnyukova, N. A. Danilieva

Empress Catherine II Saint Petersburg Mining University, St. Petersburg, Russian Federation

p. 74-79

Abstract:: This article discusses the application of the natural electromagnetic radiation (EMR) method for localizing zones prone to dangerous geodynamic phenomena in the underground mine of the Oktyabrsky copper-nickel ore deposit. The purpose of this work is to substantiate the methodology for measuring EMR parameters in underground conditions and to determine their criteria for local prediction of impact hazard in the mining and geological conditions of the Skalisty mine. To achieve this goal, EMR measurements were performed at the experimental and methodological work site using the ANGEL-M equipment complex. The verification of the EMR method results is based on deformation monitoring data, which allowed the results of laboratory tests and field trials to be confirmed to justify the effectiveness of the method in solving the problem of local prediction of rockburst hazard. The work presents the results of measurements of EMR parameters on the experimental and methodological site in 2023 and 2026, and shows their relationship with the processes occurring in the near-boundary part of the array.
Keywords:: Oktyabrskoye field, Skalisty mine, underground mining, natural electromagnetic radiation, deformation monitoring, hazardous geodynamic phenomena, local forecast
For citation:: Daniliev S.M., Shnyukova O.M., Danilieva N.A. Justification of the technology of local impact hazard prediction using natural electromagnetic radiation in the underground conditions of the Skalisty mine in the Norilsk ore district. Mine Surveying and Subsurface Use. 2026; 26 (3): 74-79. (In Russ.). https://doi.org/10.56195/20793332-2026-26-3-74-79.

Methodology for digital modeling of transient rock mass failure processes

DOI: 10.56195/20793332-2026-26-3-80-85

S. S. Kubrin, I. E. Shipovskii

1Institute of Comprehensive Exploitation of Mineral Resources Russian Academy of Sciences (ICEMR RAS), Moscow, Russian Federation

p. 80-85

Abstract:: A methodology for digital modeling of transient rock mass failure processes is proposed. It is intended to describe not only attainment of a limit state, but also the subsequent spatiotemporal kinetics of localization, fragmentation, and transport of failed material. The methodological framework includes the internal variable F characterizing the stage of transient failure, the generalized parameter Ψ of the failure-inducing action, the critical action parameter Ψ_c, the normalized action parameter Ψ/Ψ_c, an active-zone growth law, and mechanisms accounting for depletion of the available energy or structural resource. The physical meaning of the action parameter is specified separately for gas-mechanical, gravity-shear, and blasting processes, whereas the common structure remains “action parameter - critical value - growth - depletion”. A modified smoothed particle hydrodynamics method is considered for numerical implementation. It enables large deformations, free-surface formation, and fragmentation to be traced without prescribing the failure geometry a priori. The relation of F to degradation of stiffness, strength, and permeability is formulated. The need to control the Courant condition, smoothing length, artificial viscosity, contact parameters, and energy balance is demonstrated. Coupling of the geomechanical model with the gas balance of a mining panel and with a through calculation of blasting is considered separately. The methodology is intended for scenario-based assessment of coal-and-gas outburst hazard, rock mass stability, and consequences of dynamic action in solid mineral extraction.
Keywords:: geomechanics, rock mass, transient failure, digital modeling, internal variable, active zone, smoothed particle hydrodynamics, gas release, methane transport, blasting action
For citation:: Kubrin S.S., Shipovskii I.E. Methodology for digital modeling of transient rock mass failure processes. Mine Surveying and Subsurface Use. 2026; 26 (3): 80-85. (In Russ.). https://doi.org/10.56195/20793332-2026-26-3-80-85.

Modern methods of fastening mining workings

DOI: 10.56195/20793332-2026-26-3-86-90

S. S. Sargsyan

PJSC MMC Norilsk Nickel, Mining Department, Moscow, Russian Federation

p. 86-90

Abstract:: The issues of underground mining of deep horizons of ore deposits in conditions of high rock pressure, temperatures and seismic activity are considered. Methods: generalization of literary data and statistical reports on the activities of mining enterprises in Russia and abroad. Results. The stages of the development of mining reinforcement technologies have been summarized. Several stages have passed at the mines, due to the capabilities of their era. Information is provided on the technologies of hardening ore-bearing rock arrays, their features when working in uncomfortable conditions. The disadvantages of rock hardening technologies and areas of improvement are shown. A typification of methods for hardening the ore-bearing massif has been developed. It is shown that methods of fastening mine workings based on anchor-shotcrete technologies are a priority in mining regions of the world, because they take into account local mining and geological conditions and technological traditions. A reference is given on the directions of solving the problem in regions with advanced ore mining technology: Russia, South Africa, China, etc., using combined systems with anchors and sprayed concrete and grouting. The prospects of developing composite anchors from non-metallic materials and creating hybrid structures combining metal reinforcement with a polymer shell are noted. The role of intelligent support monitoring systems, robotization and automation, as well as new materials and technologies is outlined. The prospects of shotcrete mixtures with polymer compositions based on polyurethanes, inflatable reinforced hoods, heat-resistant fasteners and permafrost conditions are noted. Conclusion. It is shown that fastening technologies are characterized by conversion from passive support systems to active complexes. Continuing research and generalizing world experience, it is necessary to create reliable and economical fastening systems for the development of ore mining at great depths.
Keywords:: ore deposits, underground mining, rock fixing, rock hardening
For citation:: Sargsyan S.S. Modern methods of fastening mining workings. Mine Surveying and Subsurface Use. 2026; 26 (3): 86-90. (In Russ.). https://doi.org/10.56195/20793332-2026-26-3-86-90.

No. 3 (vol.26), May-June 2026

Issues of the Journal: 2026

№ 3/2026

New materials

New issue of the journal