JMS, Vol. 60, No. 4, 2024
GEOMECHANICS
DEVELOPMENT OF MATHEMATICAL MODELING METHODS AND SOLUTION OF PRESENT-DAY PROBLEMS IN GEOMECHANICS AT THE INSTITUTE OF MINING SB RAS
S. V. Lavrikov
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630091 Russia
e-mail: lvk64@misd.ru
This article commemorates a double jubilee date on February 8, 2024—the 300th anniversary of the Russian Academy of Sciences and the 80th anniversary of the Institute of Mining SB RAS. The author reviews the research and findings of the Institute’s scientists over the last 10–15 years in the area of mathematical modeling and numerical solution of present-day problems in geomechanics.
Rock, underground opening, mathematical model, numerical algorithm, boundary value problem, software system, stress pattern
DOI: 10.1134/S106273912404001X
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THREE-DIMENSIONAL MODELING OF AIR-BORNE DUST CLOUD PROPAGATION BEYOND SURFACE MINE BOUNDARIES DURING LARGE-SCALE BLASTING
V. M. Khazins*, V. V. Shuvalov, and S. P. Solov’ev
Academician Sadovsky Institute of Geosphere Dynamics, Russian Academy of Sciences, Moscow, 119334 Russia
*e-mail: khazins@idg.ras.ru
Wind transport of an air-borne dust cloud in the atmospheric boundary layer in the neighborhood area of a surface mine is analyzed by numerical solution of the Navier–Stokes equations in their full form for a compressible liquid and in a subsonic flow approximation. The dust source is a large-scale blast at a total mass of ~100 g of TNT at a depth of 250 m in the pitwall rock mass. The calculations take into account a portion of dust raised above ground surface by blasting. The size of the surface areas of air-borne dust concentrations above maximal allowable values is estimated. The relationship of this size and the wind direction–pitwall angle α is analyzed. The maximal distance between the pitwall and the area of dust concentration above MAV is 3 km. The exposure duration at the fixed point on ground surface is independent of the angle α and ranges from a few minutes at a distance of 500 m from the blast center to a dozen minutes at a distance of 3 km.
Surface mines, large-scale blasts, dust concentration, maximum allowable values, atmospheric boundary layer, aerodynamics, numerical modeling
DOI: 10.1134/S1062739124040021
REFERENCES
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7. Wang, Y., Du, C., and Xu, H., Key Factor Analysis and Model Establishment of Blasting Dust Diffusion in a Deep, Sunken Open-Pit Mine, ACS Omega, 2021, vol. 6, no. 1, pp. 448‒455.
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9. Khazins, V.M., Solov’ev, S.P., Loktev, D.N., Krasheninnikov, A.V., and Shuvalov, V.V., Nearsurface Air Layer Pollution with Micronic Dust Particles in Large-Scale Blasting in Open Pit Mining, Journal of Mining Science, 2022, vol. 58, no. 4, pp. 676–689.
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11. Ugarov, A.A., Ismagilov, R.I., Badtiev, B.P., and Borisov, I.I., State-of-the Art and Future Considerations on Drilling-and-Blasting System at Plants of Metalloinvest, Gornyi Zhurnal, 2017, no. 5, pp. 102‒106.
12. Shuvalov, V., Khazins, V., Krasheninnikov, A., and Soloviev, S., Formation and Evolution of a Dust Cloud as a Result of TNT Detonation in a Borehole: Numerical Simulation, Mining, 2023, vol. 3, no. 2, pp. 261‒270.
13. Khazins, V.M., Shuvalov, V.V., and Solov’ev, S.P., Numerical Modeling of Evolution of Air-Borne Dust from Blasting in Open Pit Mine, Din. Prots. Geosfer., 2023, vol. 15, no. 2, pp. 63‒80.
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TWO CONCEPTS OF CONTINUUM DEFORMATION KINEMATICS: DISPLACEMENT FIELD OF POINTS AND DISPLACEMENT FIELDS OF MATERIAL PLANES
A. F. Revuzhenko
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Novosibirsk, 630091 Russia
e-mail: lvk64@misd.ru
The author discusses the deformation kinematics method using the concept of displacement of material planes in a medium. Displacements of planes can be described by two vector fields of displacement or, by way of alternative, by one tensor field which is a field of relative displacement of planes. This is an asymmetric tensor, and its components are uncorrelated by Saint-Venant’s compatibility conditions. This approach recovers an “equality” between the kinematic-based and force-based descriptions of deformation in a medium. The adopted notion of stresses relates to the forces that affect planes inside a body, and the notion of deformation relates to the change of distances between pairs of points. The article gives a case-study of modeling an initially isotropic geomedium using this approach.
Stress, deformation, kinematics, plane, constitutive equations, geomedium
DOI: 10.1134/S1062739124040033
REFERENCES
1. Love, A.E.H., A Treatise on the Mathematical Theory of Elasticity, 4th edition, Cambridge University Press, 2013.
2. Revuzhenko, A.F. and Mikenina, O.A., Elastoplastic Model of Rocks with a Linear Structural Parameter, J. Applied Mechanics and Technical Physics, 2018, vol. 59, no. 2, pp. 332–340.
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4. Revuzhenko, A.F. and Mikenina, O.A., Elastoplastic Model of Rocks with Internal Self-Balancing Stresses. Continuum Approximation, Journal of Mining Science, 2020, vol. 56, no. 2, pp. 159–166.
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7. Povstenko, Yu., Fractional Nonlocal Elasticity and Solutions for Straight and Edge Dislocations, Phys. Mesomechanics, 2020, no. 2, pp. 35–44.
8. Makarov, P.V., Bakeev, R.A., and Smolin, I.Yu., Modeling of Localized Inelastic Deformation at the Mesoscale with Account for the Local Lattice Curvature in the Framework of the Asymmetric Cosserat Theory, Phys. Mesomechanics, 2019, vol. 22, no. 5, pp. 392–401.
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11. Erofeev, V.I. and Pavlov, I.S., Parametric Identification of Crystals Having a Cubic Lattice with Negative Poisson’s Ratios, J. Applied Mechanics and Technical Physics, 2015, vol. 56, no. 6, pp. 1015–1022.
12. Zenkour, A.M. and Radwan, A.F., A Nonlocal Strain Gradient Theory for Porous Functionally Graded Curved Nanobeams under Different Boundary Conditions, Physical Mesomechanics, 2020, vol. 23, no. 6, pp. 611–616.
13. Chih-Ping Wu and Jung-Jen Yu, A Review of Mechanical Analyses of Rectangular Nanobeans and Single-, Double- and Multi-Walled Carbon Nanotubes Using Eringen’s Nonlocal Elasticity Theory, J. Arch. Appl. Mech., 2019, vol. 89, pp. 1761–1792.
14. Sedighi, H.M. and Yaghootian, A., Dynamic Instability of Vibrating Carbon Nanotubes near Small Layers of Graphite Sheets Based on Nonlocal Continuum Elasticity, J. Applied Mechanics and Technical Physics, 2016, vol. 57, no. 1, pp. 90–100.
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SEISMIC HAZARD ASSESSMENT IN ROCK MASS DURING COMPLEX DEPOSIT MINING IN DIFFICULT HYDROGEOLOGICAL CONDITIONS
A. A. Eremenko*, V. P. Marysyuk**, A. I. Konurin, T. P. Darbinyan, and I. V. Samosenko
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Novosibirsk, 630091 Russia
*e-mail: EremenkoA1949@ yandex.ru
NorNickel’s Polar Division, Norilsk, 663302 Russia
**e-mail: MarysyukVP@nornik.ru
Experimental research determined the concentration zones of seismic events and their sources in operating Taimyr Mine. The features of formation and spreading of these zones are assessed. The influence of mined-out void volume on total energy of seismic events before and after flooding and dewatering of mines is analyzed, which allows predicting the level of seismic hazard during further mining.
Rock, seismic events, concentration zones, extraction panels, ore body, mining system, mineral deposit, energy
DOI: 10.1134/S1062739124040045
REFERENCES
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10. Besedina, A.N., Gridin, G.A., Kocharyan, G.G., Morozova, K.G., and Pavlov, D.V., Activation of Seismo-Acoustic Events after Large-Scale Blasting at an Iron Ore Body of the Kursk Magnetic Anomaly, Journal of Mining Science, 2024, vol. 50, no. 1, pp. 1–11.
11. Tereshkin, A.A., Rasskazov, I.Yu., Anikin, P.A., Migunov, D.S., and Rasskazov, M.I., Improvement of Hardware and Software Facilities for the Express-Assessment of Rockburst Hazard, Digital Technologies in Mining: All-Russian Conference Proceedings. Headnotes of Papers, Apatity, 2023, pp. 64–66.
THE PARAMETER SENSITIVITY ANALYSIS OF FORCE CHAIN EVOLUTION IN THE FLOW OF LOOSE ORE ROCK UNDER AN ISOLATION LAYER
Qingfa Chen*, Jun Liu, and Enlin Long
School of Resources, Environment and Materials, Guangxi University, Nanning, 530004 China
*e-mail: chenqf@gxu.edu.cn
School of Civil Engineering and Architecture, Guangxi University, Nanning, 530004 China
The ore drawing procedure of the synchronous filling shrinkage mining method is simulated using PFC software. Isolation layer thickness A, isolation layer interface friction factor B, ore particle friction factor C, particle radius D and wall friction factor E are chosen as the five influencing factors of the orthogonal test, along with the characteristics of the orthogonal test and force chain parameters. The findings demonstrate that the primary and secondary order of each factor impact on the orthogonal test index is D > C > A > E > B. The best test configuration was A1B2C3D3E3, with the relevant factors being thickness 0.003 m, isolation layer interface friction factor 0.5, particle friction factor 0.8, particle radius 0.008 m and wall friction factor 0.8.
Granular medium, force chain characterization, orthogonal test, matrix analysis, parameter sensitivity
DOI: 10.1134/S1062739124040057
REFERENCES
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ROCK FRACTURE
RATIONAL MODES OF INERTIAL IMPACT FRACTURE OF ROCKS
E. G. Kulikova*, S. Ya. Levenson, and A. V. Morozov**
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Novosibirsk, 630091 Russia
*e-mail: e.kulikova@corp.nstu.ru
**e-mail: shevchyk@ngs.ru
Novosibirsk State Technical University, Novosibirsk, 630087 Russia
The article describes inertial impact fracture of geomaterials using a rotary hammer. The capabilities of the tool in underground large-hole drilling are discussed. The authors present the procedure and results of the lab-scale testing of influence exerted by different combinations of rotational and linear path velocities of the rotary hammer on the strength of current taken by working tools and on the shock vibration velocity of supporting members of the rotary hammer. The rational ranges of these velocities, such as the process of fracture runs at the least energy input and minimum impact on the working tools, are determined.
Inertial impact, rotary hammer, rotation speed, hammer feed, electric current consumption, vibration velocity, supporting members
DOI: 10.1134/S1062739124040069
REFERENCES
1. Gerike, P.B., Rock Fracture by Disc Tool of Surface Miners, Theses of Cand. Tech. Sci. Dissertation, Kemerovo, 2005.
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24. Kulikova, E.G., Levenson, S.Ya., and Morozov, A.V., Shape of Hammers of Hammer Rotors for Inertial Impact Fracture, Journal of Mining Science, 2023, vol. 59, no. 3, pp. 433–442.
INFLUENCE OF CUTTING PROCESS AND CUTTING TOOL PARAMETERS ON LOADS IN CUTTING HARD INCLUSIONS IN COAL
V. Yu. Linnik* and Yu. V. Linnik
State University of Management,
Moscow, 109542 Russia
*e-mail: vy_linnik@guu.ru
The experimental research assessed the influence exerted by the parameters of cutting process and cutting tool on the loads in cutting hard inclusions in rocks. It is found that in central cutting of hard inclusions, the maximal loads on a cutting pick depend on the width and depth of a cut, and on the cutting pattern, and are independent of the cutting velocity. The increase in the width of the cutting point of a cutting pick contributes to an increase in the peak and average-peak forces of cutting and feed, while the lateral loads in cutting hard inclusions by cutting picks with a flat face depend only on the depth of cut. The peak feed forces essentially depend on the shape of the cutting point of a cutting pick, and the cutting force depend on the angle of cutting. The decrease in the wedge angle of the face of a cutting pick reduces the peak forces of cutting and feed, while the lateral loads increase.
Cutting, hard inclusions, peak cutting forces, depth and width of cut, cutting pattern and velocity, shapes of cutting point and pick face, cutting angle
DOI: 10.1134/S1062739124040070
REFERENCES
1. Linnik, Yu.N., Linnik, V.Yu., Voronova, E.Yu., Evstratov, V.A., and Tsikh, A., Analysis of Fault Structure in Shearer Drums, Ugol’, 2021, no. 4 (1141), pp. 20–24.
2. Khoreshok, A.A., Mamet’ev, L.E., Tsekhin, A.M., and Borisova, A.Yu., Current Issues of Using Disc Cutting Tools on Selective Shearer Drums, Tekhnika Tekhnologiya Gornogo Dela, 2021, no. 4 (15), pp. 40–63.
3. Myshkovsky, M. and Pashedag, U., Razrabotka dlinnymi ochistnymi zaboyami ugol’nykh plastov srednei moshchnosti. Sravnenie effektivnosti strugovoi i kombainovoi vyemki (Longwall Mining of Medium-Thick Coal Seams. Comparison of Efficiency of Ploughing and Shearing), Caterpillar, 2015.
4. Linnik, V.Yu., Linnik, Yu.N., Zhabin, A.B., Polyakov, A.V., and Averin, E.A., Rating of Wear of Coal Mining Machine Picks Depending on Operating Conditions, Ugol’, 2019, no. 12, pp. 26–30.
5. Krauze, K., Mucha, K., Wydro, T., and Pieczora, E., Functional and Operational Requirements to be Fulfilled by Conical Picks Regarding Their Wear Rate and Investment Costs, Energies, 2021, vol. 14, no. 12, pp. 36–96.
6. Linnik, Yu.N. and Linnik, V.Yu., Fracture of Solid Inclusions by Picks, Journal of Mining Science, 2024, vol. 60, no. 3, pp. 407–415.
7. Gabov, V.V., Zadkov, D.A., Nguyen Van Xuan, Hamitov, M. S., and Molchanov, V.V., To the Problem of Improvement of Working Tools of Mining Excavation Machines, GIAB, 2022, no. 6-2, pp. 205–222.
8. Babokin, G.I., Shprekher, D.M., and Kolesnikov, E.B., Control of Cutting Tools of Mining Machines, Izv. Vuzov. Gorn. Zh., 2018, no. 1, pp. 107–113.
9. Linnik, Yu.N., Zhabin, A.B. and Tsikh, A., Patterns of Influence Exerted by Cutting Drum Reliability and Coal Seam Properties on Cutter–Loader Capacity, Mining Informational and Analytical Bulletin–MIAB, 2021, no. 11, pp. 169–180.
10. Shishlyannikov, D.I., Ivanov, S.L., Zvonarev, I.E., Zverev, V.Yu., Improving Efficiency of Shearing and Hauling Machines in Longwall Potash Mining, Mining Informational and Analytical Bulletin–MIAB, 2020, no. 9, pp. 116–124.
11. Cheluszka, P., Mikuła, S., and Mikuła, J., Conical Picks of Mining Machines with Increased Utility Properties—Selected Construction and Technological Aspects, Acta Montanistica Slovaca, 2021, vol. 26, no. 2, pp. 195–204.
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MINERAL MINING TECHNOLOGY
OPTIMIZATION ANALYSIS OF KEY PARAMETERS OF GAS DRAINAGE DRILLING IN COAL SEAMS BASED ON SCREW DRILLS
Cheng Renhui*, Zhang Chao, Zeng Xiangzhen, Duan Chenye, and Chen Zhiheng
College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi, 710054 China
*e-mail: crhalzj@126.com
Key Laboratory of Western Mine Exploitation and Hazard Prevention of the Ministry of Education,
Xi’an University of Science and Technology, Xi’an, Shaanxi, 710054 China
To increase the efficiency of gas extraction drilling in coal seams, screw drilling tools used in petroleum-related operations were introduced instead of common bottom-hole combination drilling tools. According to the Box–Behnken experimental design principle, the significance of three main construction factors on the drilling efficiency is: the flow rate > pump pressure > feed force. The optimized drilling parameters were used to conduct a field test in Wangzhuang coal mine of Shanxi Lu’an Group. The results showed that the drilling efficiency of screw drilling increased by 39.08% and the drilling slag discharge increased by 48.28% compared with the conventional rotary drilling technique, which significantly improved the construction efficiency of coal seam drilling and is expected to reduce the gas treatment cycle and cost of coal seams to a significant extent.
Screw drilling tools, cutting transport, borehole drilling, drilling time
DOI: 10.1134/S1062739124040082
REFERENCES
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4. Shi, Y., Lin, B., Liu, T., and Hao, Z., Synergistic ECBM Extraction Technology and Engineering Application Based on Hydraulic Flushing Combing Gas Injection Displacement in Low Permeability Coal Seams, Fuel, 2022, vol. 318, p. 123688.
5. Zhang, C., Cheng, R.H., Liu, C., Xue, J.H., Liu, H., Jin, G.H., Chang, J., Yan, J., Zeng, X.Z., and Wang, X.L., Experimental Study on Strengthening and Sealing Materials and their Application in Coal Mines, Adv. Mater. Sci. Eng., 2020, pp. 1–13.
6. Zhang, C., Liu, H., Li, S., Liu, C., Qin, L., Chang, J., and Cheng, R., Experimental Study on the Expansion of a New Cement-Based Borehole Sealing Material Using Different Additives and Varied Water–Cement Ratios, Arabian J. Sci. Eng., 2019, vol. 44, pp. 8717–8725.
7. Li, S., Li, Q., Wang, H., Yuan, L., Zhang, Y., Xue, J., Zhang, B., and Wang, J., A Large-Scale Three-Dimensional Coal and Gas Outburst Quantitative Physical Modeling System, Meitan Xuebao/J. China Coal Soc., 2018, vol. 43, pp. 121–129.
8. Dou, L., He, X., Ren, T., He, J., and Wang, Z., Mechanism of Coal–Gas Dynamic Disasters Caused by the Superposition of Static and Dynamic Loads and its Control Technology, Zhongguo Kuangye Daxue Xueba, J. China University Min. Technol., 2018, vol. 47, pp. 48–59.
9. Xie, H., Ni, G., Li, S., Sun, Q., Dong, K., Xie, J., Wang, G., and Liu, Y., The Influence of Surfactant on Pore Fractal Characteristics of Composite Acidized Coal, Fuel, 2019, vol. 253, pp. 741–753.
10. Li, D., Hydraulic Drill Hole Reaming Technology with Large Flow and Draining of Coal Mine Gas, Int. J. Min. Sci. Technol., 2019, vol. 29, pp. 925–932.
11. Zhai, C., Xu, J., Xiang, X., and Zhong, C., Flexible Gel (FG) for Gas-Drainage Drilling Sealing Material Based on Orthogonal Design, J. Min. Sci. Technol., 2015, vol. 25, no. 6, pp. 1031–1036.
12. Shu-Gang, L.I., Bao, R.Y., Zhang, T.J., et al., Determining the Rational Sealing Depth for Horizontal Gas Drainage Borehole, J. Xi'an University Sci. Technol., 2019.
13. Si, L., Li, Z., Kizil, M., Chen, Z., Yang, Y., and Ji, S., The Influence of Closed Pores on the Gas Transport and its Application in Coal Mine Gas Extraction, Fuel, 2019, vol. 254, pp. 115601–115605.
14. Linghu, J., Li, M., and Yue, G., Numerical Simulation of Integrated Mechanics of Drilling and Mechanical Cavitation in Coal Seam, ACS Omega, 2022, vol. 7(3), pp. 2975–2988.
15. Shi, M., Jiang, W., Hao, D., et al., Multiphase Coupling Deslagging Mechanism and Application of Pneumatic Floor Drilling Machine, Safety in Coal Mines, 2019.
16. Zhichao, Z., Application of Geophysical Prospecting Technology in Geological Prospecting and Resource Exploration, Foreign Language Sci. Technol. J. Database (Digest Edition) Natural Sciences, 2021, vol. 4, p. 3.
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18. Shi, C. and Wang, Y., Data-Driven Construction of Three-Dimensional Subsurface Geological Models from Limited Site-Specific Boreholes and Prior Geological Knowledge for Underground Digital Twin, Tunnelling Underground Space Technol., 2022, vol. 126. 104493.
19. Wu, X., Zhao, Y., Yu, Y., Zhang, B., Jia, L., and Du, X., Study on Distribution Law of Stress and Permeability around Hydraulic Fracturing Borehole in Coal and Rock, Energies, 2022, vol. 15, pp. 4210–4210.
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30. Zhong, L.I., Progress and Prospects of Digitization and Intelligentization of CNOOC’s Oil and Gas Well Engineering, Petroleum Drilling Techniques, 2022, vol. 50, no. 2, pp. 1–8.
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SCIENCE OF MINING MACHINES
PARAMETERS OF DIMENSION CHAINS OF ROLLER CONE DRILL BITS
D. I. Simisinov*, L. V. Gorodilov, and A. D. Simisinov
Ural State Mining University, Yekaterinburg, 620144 Russia
*e-mail: 7sinov@mail.ru
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Novosibirsk, 630091 Russia
The authors have revealed and compared the internal and external parameters that form a multi-element loop system (dimension chain) of a roller cone drill bit. The article presents procedures for the probability calculation of a dimension chain of the tool diameter, calculation of the tool diameter error because of the rotation of the cone drill bit on the bit leg, and for the calculation of eccentricity error of gage cones relative to the axis of the fitting thread for three- and four-cone drill bits. It is recommended to revise the values of dimensional tolerance for roller cone drill bits and to amend related normative and technical documentation.
Roller cutter drilling tool, roller cone drill bit, dimension chain, manufacture error, error calculation procedure
DOI: 10.1134/S1062739124040094
REFERENCES
1. Regotunov, А.S., Zharikov, S.N., Sukhov, R.I., and Kutuev, V.А., Assessment of the Current State of Drilling and Blasting Operations and the Need to Implement Transition Processes at some Large Mining Enterprises in the Urals and Siberia, Problemy Nedropol’zovaniya, 2021, no. 2 (29), pp. 52–62.
2. Anistratov, K.Yu., Donchenko, Т.V., Opanasenko, P.I., and Strogiy, I.B., Analysis of the Market of Drilling Rigs for Open-Pit Mining in Russia, Gornaya Promyshlennost’, 2018, no. 2 (138), pp. 84–89.
3. Repin, А.А., Smolyanitsky, B.N., Alekseev, S.E., Popelukh, А.I., Timonin, V.V., and Karpov, V.N., Downhole High-Pressure Air Hammers for Open Pit Mining, Journal of Mining Science, 2014, vol. 50, no. 5, pp. 929–937.
4. Karpov, V.N. and Petreev, А.М., Determination of Efficient Rotary Percussive Drilling Techniques for Strong Rocks, Journal of Mining Science, 2021, vol. 57, no. 3, pp. 447–458.
5. Khabibullin, М.Ya., Suleimanov, R.I., and Filimonov, О.V., Increasing the Durability of Three-Cone Drill Bits, Neft i Gaz, 2018., no. 1, pp. 74–79.
6. Boreiko, D.А. and Serikov, D.Yu., On the Problem of Diagnostics of Technical Condition of Roller Cutter Drilling Tools, Sfera. Neft i Gaz, 2021, no. 4, pp. 50–54.
7. Majd, H.M. and Hassani, B., Improvement of Roller Cone Drill Bit Design by Using Finite Element Method and Experimental Study, Int. J. Oil, Gas Coal Technol., 2022, vol. 31, no. 4, pp. 382–405.
8. Boreiko, D.A., Lutoev, A.A., and Serikov, D. Yu., Theoretical Studies on the Nature and Conditions of Interaction of Heel and Peripheral Nose Cones of Offset Roller Cone Bits with a Bottom Hole, Min. Sci. Technol., 2022, vol. 7, no. 3, pp. 231–239.
9. Gorshenin, М.А., Improving the Performance of Carbide-Tipped Roller Cone Drill Bits by Selective Assembly Method, GIAB, 2000, no. 4, p. 12.
10. Prakash, S. and Mukhopadhyay, A.K., A Mixed Weibull Method for Reliability Analysis of Tricone Roller Bits in Blasthole Drilling, Journal of Mining Science, 2018, vol. 54, no. 5, pp. 763–772.
11. Slipchuk, A M., Jakym, R.S., Korendiy, V., and Lytvyniak, Y.M., Design and Technological Aspects of Functionally Oriented Technology of Manufacturing the Three-Cone Drill Bits, Conf. Series: Materials Sci. Eng., IOP Publish., 2023, vol. 1277, no. 1. 012015.
12. Šporin, J., Mrvar, P., Petrič, M., Vižintin, G., and Vukelić, Z., The Characterization of Wear in Roller Cone Drill Bit by Rock Material—Sandstone, J. Petroleum Sci. Eng., 2019, vol. 173, pp. 1355–1367.
13. Ravina, K., Yang, N., Brocoum, S., Pasco-Anderson, J., Walker, R.L., Khan, M., and Holsapple, J., Conical Drill Bit for Optimized External Ventricular Drain Placement: A Proof-of-Concept Study, J. Neurosurgery, 2023, vol. 139, no. 3, pp. 881–891.
14. Bogomolov, R.М., Procedure for Calculating Calibrating Diameters of Roller Cutter Calibration Line and Drill Bit Diameter, Sfera. Neft i Gaz, 2020, no. 5, pp. 42–44.
15. Pyalchenkov, V.А., Pyalchenkov, D.V., Dolgushin, V.V., and Kulyabin, G.А., Study of Cutting Structure of Roller Cone Drill Bit Depending on Its Manufacturing Errors, Neft i Gaz, 2019, no. 1, pp. 113–120.
16. Pyalchenkov, V.А., Modeling the Workload of Bearings in a Drill Bit Leg, Mechanics and Control Processes: Proc. of All-Russian Sci. Pract. Conf., Tyumen: TyumGNGU, 2015.
17. Krylov, S.М., Bogomolov, R.М., Nosov, N.V., and Dedov, N.I., Increasing the Life of Roller Cone Drill Bit, Izv. Sam NTs RAN, 2011, no. 4-3, pp. 1085–1087.
18. Bogomolov, R.М., Analysis of Manufacturing Methods of Parts and Assembly of Roller Cone Drill Bits and their Impact on Tool Performance, Oborudovanie i tekhnologii dlya neftegazovogo kompleksa, 2020, no. 4, pp. 8–12.
19. RD 39-2-88-78. Metodika kontrolya trekhsharoshechnykh sektsionnykh dolot v sbore diametrom ot 165.1 do 320 mm (RD 39-2-88-78. Procedure for Testing Three-Cone Sectional Drill Bits in Assembly with a Diameter from 165.1 to 320 mm), Moscow: VNIIBT, 1979.
MINERAL DRESSING
SPECIFICITY OF COMPOSITION AND PROPERTIES OF UMBOZERO LOPARITE CONCENTRATION TAILINGS
E. A. Krasavtseva* and V. V. Maksimova
Nature-Like Technologies and Arctic Technosphere Safety Laboratory, Center for Nanomaterial Science, Kola Science Center, Apatity, 184209 Russia
*e-mail: vandeleur2012@yandex.ru
Institute of Problems of Industrial Ecology of the North, Kola Science Center,
Apatity, 184209 Russia
The article reports the research of composition and properties of loparite concentration tailings at the Umbozero plant closed in 1999. During the research, samples of tailings were taken in the surface layer and at depth, using the method of cutting ring. The geological and engineering properties of the tailings were investigated, and the sizing, chemical, X-ray phase and radionuclide analyses were performed. The research revealed heterogeneity in material constitution and properties of the test tailings. The mineral composition of the tailings is dominated by nepheline, and by K and Na feldspars. Loparite is detected by the X-ray phase analysis at one of the four test sites of the tailings pond, and its content increases in the fine fraction. The analysis of radionuclides shows the presence of radium and thorium in the test concentration tailings.
Tailings ponds, loparite concentration tailings, geological and engineering properties, material constitution, radio-activity, X-ray phase analysis, loparite
DOI: 10.1134/S1062739124040100
REFERENCES
1. Aleksandrova, T.N., Сomplex and Deep Processing of Mineral Raw Materials of Natural and Technogenic Origin: State and Prospects, J. Min. Institute, 2022, vol. 256, pp. 503–504.
2. Chanturia, V.A., Nikolaev, A.I., and Aleksandrova, T.N., Innovative Environmentally Safe Processes for the Extraction of Rare and Rare-Earth Elements from Complex Ores of Perplexed Material Composition, Geology of Ore Deposits, 2023, vol. 65, pp. 425–437.
3. Echeverry-Vargas, L., and Ocampo-Carmona, L.M., Recovery of Rare Earth Elements from Mining Tailings: A Case Study for Generating Wealth from Waste, Miner., 2022, vol. 12, no. 8, p. 948.
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5. Abaka-Wood, G.B., Addai-Mensah, J., and Skinner, W., The Use of Mining Tailings as Analog of Rare Earth Elements Resources: Part 1—Characterization and Preliminary Separation, Miner. Proc. and Extractive Metallurgy Review, 2022, vol. 43, no. 6, pp. 701–715.
6. Agboola, O., Babatunde, D.E., Isaac Fayomi, O.S., Sadiku, E.R., Popoola, P., Moropeng, L., Yahaya, A., and Mamudu, O.A., A Review on the Impact of Mining Operation: Monitoring, Assessment and Management, Results in Eng., 2020, vol. 8, p. 100181.
7. Binnemans, K., Jones, P.T., Blanpain, B., Van Gerven, T., and Pontikes, Y., Towards Zero-Waste Valorisation of Rare-Earth-Containing Industrial Process Residues: A Critical Review, J. Cleaner Production, 2015, vol. 99, pp. 17–38.
8. Stanujkic, D., Zavadskas, E.K., Karabasevic, D., Milanovic, D., and Maksimovic, M., An Approach to Solving Complex Decision-Making Problems Based on IVIFNs: A Case of Comminution Circuit Design Selection, Miner. Eng., 2019, vol. 138, pp. 70–78.
9. Jha, M.K., Kumari, A., Panda, R., Rajesh Kumar, J., Yoo, K., and Lee, J.Y., Review on Hydrometallurgical Recovery of Rare Earth Metals, Hydrometallurgy, 2016, vol. 165, pp. 2–26.
10. Abaka-Wood, G.B., Ehrig, K., Addai-Mensah, J., and Skinner, W., Recovery of Rare Earth Elements Minerals from Iron-Oxide-Silicate-Rich Tailings: Research Review, Eng., 2022, vol. 3, no. 2, pp. 259-275.
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22. Melent’ev, G.B., Natural Radioactivity of Rare Metal-Specialized Mineral Raw Materials and Urbanized Territories of the Karelian-Kola Region as a Factor in their Radioecological Assessment, Trudy KNTS RAN, 2021, no. 2, pp. 27–43.
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POTENTIAL OF POLYMETALLIC TAILINGS AS A SOURCE OF BARITE
A. Sh. Shavekina*, S. S. Volynkin, V. P. Bondarenko, S. B. Bortnikova, and N. V. Yurkevich
Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch,
Russian Academy of Sciences, Novosibirsk, 630090 Russia
*e-mail: khusainovaas@ipgg.sbras.ru
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
The research focuses on usability of tailings from the Talmovskie Peski and Ursk dumps in the Kemerovo Region as a manmade source of barite after suitable recovery and processing. Mineralogical, geochemical and typomorphic characteristics of barite are assessed from morphology, mineral associations, content and grain size distribution. The technological studies are accomplished, and barite concentrates are obtained from the test tailings by gravity separation and flotation. The concentrates are assessed with respect to barite content with a view to using the concentrates as a weighting material as per the USSR State Standard GOST 4682-84. The barite recovery potential of tailings from the Talmovskie Peski and Ursk dumps is evaluated.
Barite content, barite, resources, gravity, flotation, manmade objects
DOI: 10.1134/S1062739124040112
REFERENCES
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2. El Aallaoui, A., El Ghorfi, M., Elghali, A., Taha, Y., Zine, H., Benzaazoua, M., and Hakkou, R., Investigating the Reprocessing Ppotential of Abandoned Zinc–Lead Tailings Ponds: A Comprehensive Study Using Physicochemical, Mineralogical, and 3D Geometallurgical Assessments, Miner. Eng., 2024, vol. 209. 108634.
3. Wu, S., Wang, F., Komárek, M., and Huang, L., Ecological Rehabilitation of Mine Tailings, Plant and Soil, 2024, p. 1–5.
4. Edelev, А.V., Yurkevich, N.V., Gureev, V.N., and Mazov, N.А., Reclamation of Waste Storage Sites of the Mining Industry in the Russian Federation, Journal of Mining Science, 2022, vol. 58, no. 6, pp. 1053–1068.
5. Rimkevich, V.S., Sorokin, А.P., Pushkin, А.А., and Girenko, I.V., Physicochemical Analysis of Distribution of Useful Components in Waste in the Thermal Energy Sector, Journal of Mining Science, 2020, vol. 56, no. 3, pp. 464–467.
6. Usmanova, N.F., Burdakova, Е.А., Baksheeva, I.I., Plotnikova, А.А., and Knyazev, V.N., Mineralogical Features Associated with Material Constitution and Process Properties of Difficult Lead–Zinc Ore, Journal of Mining Science, 2024, vol. 60, no. 1, pp. 14–153.
7. Kuznetsov, D.S., Baritovye mestorozhdeniya Respubliki Komi i perspektivy ikh osvoeniya. Aktual’nye problemy, napravleniya i mekhanizmy razvitiya proizvoditel’nykh sil Severa (Barite Deposits of the Komi Republic and Prospects for their Mining. Current Problems, Trends and Mechanisms for the Development of Productive Forces in the North), Syktyvkar: Komi Respublikanskaya Tipografiya, 2018.
8. Boyarko, G.Yu. and Khat’kov, V.Yu., Review of the State of Production and Consumption of Raw Barite in Russia, Izv. TPU. Inzhiniring Georesursov, 2021, no. 10 (332), pp. 180–191.
9. Voytov, М.D. and Veti, А.А., Analysis of the Reserves at the Kyzyl–Tashtyg Polymetallic Deposit to Justify the Mine Construction, Vestn. KuzGTU, 2012., no. 6, pp. 45–48.
10. Akhmanov, G.G., Bulatkina, Т.А., Egorova, I.P., Kuz’mina, I.A., Kochergin, А.V., and Galimov, N.R., Residual Deposits in the Republic of Bashkortostan as the Basis for Creating a Raw Material Base of “Non-Drilling” Barite, Razvedka i Okhrana Nedr, 2019, no. 6, pp. 14–18.
11. Yurkevich, N.V., Khusainova, А.Sh., Bortnikova, S.B., Bondarenko, V.P., Karin, Yu.G., and Kokhanova, S.P., Resources of Barite, Non-Ferrous and Noble Metals in the Talmovskie Peski Tailings Dump: Mineralogical, Geochemical and Geophysical Data, Geologiya i Mineral’no-Syr’evye Resursy Sibiri, 2023, no. 3 (55), pp. 105–114.
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18. Liu, Y., Wei, Z., Li, M., and Zeng, J., Research Progress of Barite Separation Process and Resource Overview, Conservation Utilization Miner. Res., 2021, vol. 41, no. 6, pp. 117–123.
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MINE AEROGASDYNAMICS
AIR DISTRIBUTION IN INCLINED DRIFTS WITH INTENSE HEAT EMISSION SOURCES
M. D. Popov, M. A. Semin*, and L. Yu. Levin
Mining Institute, Ural Branch, Russian Academy of Sciences, Perm, 614007 Russia
*e-mail: seminma@inbox.ru
The authors analyze convection-induced stratification of air flows in an inclined drift with an intense heat emission source. The research methodology included 3D numerical modeling of nonstationary aero-thermodynamic processes in an inclined drift and in an adjoint horizontal drift. The article describes three possible scenarios of convection-induced air flow stratification in an inclined drift depending on heat emission intensity. The dependence of the critical heat rate of the heating source on the initial depression and incline of the drift is determined. The pressure difference–mass air flow relationship in the inclined drift is analyzed at different heat emission intensities using the 3D numerical model and a 1D network model. Description of underground mine fires using 1D models requires empirical relationships of air drag, average air density and air flow rate.
Mine ventilation, underground fire, thermal depression, ventilation stability, modeling, ventilation network
DOI: 10.1134/S1062739124040124
REFERENCES
1. Salami O. B., Xu G., Kumar A. R., and Pushparaj R. I. Underground Mining Fire Hazards and Optimization of Emergency Evacuation Strategies: The Issues, Existing Methodology and Limitations, And Way Forward, Process Safety Env. Protection, 2023, Vol. 177, pp. 617–634.
2. Levin, L.Yu., Paleev, D.Yu., and Semin, М.А., Calculation of Air Flow Stability in Mine Ventilation Networks Based on Thermal Depression Factor, Vestn. nauchnogo tsentra po bezopasnosti rabot v ugol’noi promyshlennosti, 2020, no. 1, pp. 81–85.
3. Popov, М.D., Kormshchikov, D.S., Semin, М.А., and Levin, L.Yu., Calculation of Air Flow Stability in Drifts Based on Thermal Depression Factor Using Aeroset Analytical System, Bezopasnost’ truda v promyshlennosti, 2020, no. 10, pp. 24–32.
4. Zhou, L. and Smith, A.C., Improvement of a Mine Fire Simulation Program—Incorporation of Smoke Rollback into MFIRE 3.0, J. Fire Sci., 2012, vol. 30, no. 1, pp. 29–39.
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6. Edwards, J.C., Franks, R.A., Friel, G.F., and Yuan, L., Experimental and Modeling Investigation of the Effect of Ventilation on Smoke Rollback in a Mine Entry, 2005.
7. Vasilenko, V.I., Principles, Criteria, Ventilation Control Algorithms and Stability of Air Flows during Mine Accidents, Gornyi Zhurnal, 2010, no. 8, pp. 42–46.
8. Kosterenko, V.N., Mathematical Modeling of Nonstationary Ventilation Processes in the Network of Drifts in Coal Mines, GIAB, 2011, no. 6, pp. 373–377.
9. Adjiski, V., Possibilities for Simulating the Smoke Rollback Effect in Underground Mines Using CFD Software, GeoSci. Eng., 2014, vol. 60, no. 2, pp. 8–18.
10. Meng, N., Liu, B., Li, X., Jin, X., Huang, Y., and Wang, Q., Effect of Blockage-Induced Near Wake Flow on Fire Properties in a Longitudinally Ventilated Tunnel, Int. J. Thermal Sci., 2018, vol. 134, pp. 1–12.
11. Huang, Y., Li, Y., Dong, B., Li, J., and Liang, Q., Numerical Investigation on the Maximum Ceiling Temperature and Longitudinal Decay in a Sealing Tunnel Fire, Tunnel. Underground Space Technol., 2018, vol. 72, pp. 120–130.
12. Kin, А.I., Lisakov, S.А., Sidorenko, А.Yu., Sidorenko, А.I., and Sypin, Е.V., Computer-Simulated Fire in Belt Roadway of Coal Mine, Yuzhno-Sibirskii nauchn. vestn., 2019, vol. 2, no. 4, pp. 83–94.
13. Kobylkin, S.S., Kaledina, N.О., and Kobylkin, А.S., Modeling the Effect of Wind and Air Temperature on Toxic Gas and Smoke Distribution during a Fire on Metro Bridge, GIAB, 2022, no. 11, pp. 147–162.
14. Stewart, C.M., Aminossadati, S.M., and Kizil, M.S., Underground Fire Rollback Simulation in Large Scale Ventilation Models, Proc. 15th North American Mine Ventilation Symp., 2015.
15. Hansen, R., Proposed Design Fire Scenarios for Underground Hard Rock Mines, J. Sustainable Min., 2022, vol. 21, no. 4, pp. 261–277.
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17. Shalimov, А.V. and Popov, М.D., Effect of Thermal Factors on the Value of Air Drag in Mine Workings, Gornoe Ekho, 2023, no. 3, pp. 142–148.
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19. Hansen, R., Study of Heat Release Rates of Mining Vehicles in Underground Hard Rock Mines, Doctoral Dissertation, Mälardalen University, 2015.
20. Levin, L.Yu., Semin, М.А., and Zaitsev, А.V., Mathematical Methods of Forecasting Microclimate Conditions in an Arbitrary Layout Network of Underground Excavations, Journal of Mining Science, 2014, vol. 50, no. 2, pp. 371–378.
21. Shalimov, А.V., Numerical Modeling of Air Flows in Mines under Emergency State Ventilation, Journal of Mining Science, 2011, vol. 47, no. 6, pp. 807–813.
AERODYNAMIC PROCESSES IN EXTRA-LONG WALL COAL MINING USING SHEARERS WITH JET FANS
S. A. Pavlov
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Novosibirsk 630091 Russia
e-mail: pavlov_s_a@inbox.ru
The articles describes the studies of influence exerted by operation of a jet fan installed on a shearer on air drag and on methane and coal dust concentrations in a longwall. The investigation used ANSYS Fluent and field data from coal mines in Kuzbass. The object of study was dust and gas/air mixtures in extra-long panels with a length of 400 m and at mineable coal seam thickness of 2.4 and 3.7 m. It is found that jet fans can decrease air drag in such longwalls by 35%, which enables decreasing the air feed in the longwall by 24% without increasing the main fan capacity. The air flow generated by a jet fan eliminates dead methane–air zones nearby an operating shearer and decreases coal dust concentration at work places of shearer’s operators by 13.8–36.7%.
Mine, coal face, extra longwall, shearer, jet fan, air drag, powered roof support, methane concentration, coal dust
DOI: 10.1134/S1062739124040136
REFERENCES
1. Starkov, L.I., Zemskov, А.N., and Kondrashev, P.I., Razvitie mekhanizirovannoy razrabotki kaliynykh rud (Development of Machine Mining of Potash Ores), Perm: PGTU, 2007.
2. De Vilhena Costa, L., Cost-Saving Electrical Energy Consumption in Underground Ventilation by the Use of Ventilation on Demand, J. Margarida da Silva, Min. Technol., 2020, vol. 129, no. 1, pp. 1–8.
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6. Ordin, А.А., Timoshenko, А.М., Botvenko, D.V., and Nikol’skiy, А.М., Justification of Optimal Length and Coal Face Capacity when Mining Thick Coal Seam in Taldinskaya-Zapadnaya-1 Mine, Ugol’, 2019, no. 7,3 pp. 50–54.
7. Kalinin, S.I., Rout, G.N., Ignatov, Yu.М., and Cherdantsev, А.М., Justification of Daily Coal Output from a 400 m Longwall in Conditions of V. D. Yalevsky Mine, Vestn. KuzGTU, 2018, no. 5 (129), pp. 27–35.
8. Abramov, F.А., Gertsen, B.Е., Sobolevskiy, V.V., and Shevelev, G.А., Aerogazodinamika vyemochnogo uchastka (Air-Gas Dynamics of Extraction Panel), Kiev: Naukova Dumka, 1972.
9. Pavlov, S.А., Intensification of Ventilation in Extra-Long Wall Coal Mining Using Shearers with Jet Fans, Fund. Priklad. Voprosy Gornykh Nauk, 2021, vol. 8, no. 2, pp. 216–222.
10. Krasyuk, A.M., Lugin, I.V., Pavlov, S.A. et al., RF patent no. 2701900 S2, Byull. Izobret., 2019, no. 28.
11. Filin, А.E., Pulsating Ventilation Method to Disintegrate Methane Accumulations in Coal Mines, GIAB, 2006, no. S5, pp. 255–261.
12. Aleksandrov, S.N., Bulgakov, Yu.F., and Yailo, V.V., Okhrana truda v ugol’noi promyshlennosti (Occupational Safety in the Coal Industry), Donetsk: RIA DonNTU, 2012.
13. Ushakov, К.Z., Kaledina, N.О., and Kirin, B.F., Bezopasnost’ vedeniya gornykh rabot i gornospasatel’noe delo (Mining Safety and Mine Rescue), Moscow: MGGU, 2002.
14. Ayruni, А.Т., Klebanov, F.S., and Smirnov, О.V., Vzryvoopasnost’ ugol’nykh shakht (Explosion Hazard in Coal Mines), Moscow: Izd. Gornoe Delo OOO Kimmeriyskiy Tsentr, 2011.
15. Kosterenko, V.N. and Timchenko, А.N., Factors Affecting the Explosion of Methane and Coal Dust in Mines, GIAB, 2011, no. 7, pp. 368–377.
16. Uvarova, V.A., About Causes of Poisoning in Major Accidents in Coal Mines, Tekhnologii tekhnosfernoi bezopasponti, 2012, no. 6 (46), pp. 1–7.
17. Filin, А.E., Classification of Mine Workings according to the Degree of Hazard of Methane Accumulations, Thematic Appendix Metan to GIAB, 2005, pp. 223–229.
18. Filin, A.E., Failure Mechanism of Methane Accumulations in Mine Workings, Thematic Appendix Metan to GIAB, 2005, pp. 229–238.
19. Ushakov, К.Z., Rudnichnaya ventilyatsiya (Mine Ventilation), Moscow: Nedra, 1988.
20. Pavlov, S.А., Method for Reducing Methane Concentration in Extra-Long Panel Using Jet Fan Installed on Shearer, Interekspo Geo-Sibir, 2023, vol. 2, no. 1, pp. 186–193.
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26. Petrukhin, P.М., Netseplyaev, М.I., and Kireev, А.М., Preduprezhdeniye vzryvov ugol’noi pyli v konveyernykh vyrabotkakh. Sovr. sposoby bor’by s pyl’yu (Prevention of Coal Dust Explosions in Belt Roadways. Present-Day Methods of Dust Control), Donetsk: TSBTI MUP USSR–MakNII, 1967.
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29. Stukanov, V.I., Ivanov, V.N., and Loginov, S.М., Ochistka rudnichnogo vozdukha ot pyli pri konveiernoi dostavke rudy. Ventilyatsiya shakht i rudnikov (Mine Air Purification from Dust in Conveyor Delivery of Ore. Ventilation of Underground and Open-Pit Mines), Leningrad, 1983.
30. Johan-Essex, V., Keles, C., Rezaee, M., Scaggs-Witte, M., and Sarver, E., Respirable Coal Mine Dust Characteristics in Samples Collected in Central and Northern Appalachia, Int. J. Coal Geol., 2017, vol. 182, pp. 85–93.
31. Korneva, M.V. and Korshunov, G.I., Assessment of the Dust Load on the Respiratory Organs of Workers in Coal Mines, Taking into Account the Dispersed Composition of the Dust Aerosol, Scientific Reports on Resource Issues, 2017, vol. 1, pp. 416–421.
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33. Pope, C.A., Burnett, R.T., Thun, M.J., Calle, E.E., Krewski, D., Ito, K., and Thurston, G.D., Lung Cancer, Cardiopulmonary Mortality, and Long-Term Exposure to Fine Particulate Air Pollution, JAMA, 2002, no. 287 (9), pp. 1132–1141.
34. Baturin, О.V., Baturin, N.V., and Matveev, V.N., Raschet techenii zhidkostei i gazov s pomoshchyu universal’nogo programmnogo kompleksa Fluent (Calculation of Liquid and Gas Flows Using the Universal Software Package Fluent), Samara: SGAU, 2009.
35. Kobylkin, А.S., Study of Dust Distribution in a Coal Face near Shearer, GIAB, 2020, no. 6-1, pp. 65–73.
GEOINFORMATION SCIENCE
DIGITAL MINING TECHNOLOGIES: A CASE-STUDY OF IMPORT SUBSTITUTION USING MINING AND GEOLOGICAL SYSTEMS MINEFRAME
S. V. Lukichev* and O. V. Nagovitsyn**
Mining Institute, Kola Science Center, Russian Academy of Sciences, Apatity, 184209 Russia
*e-mail: s.lukichev@ksc.ru
**e-mail: o.nagovitsyn@ksc.ru
The authors address a relevant problem connected with digital transformation of the mining industry toward import substitution and creation of a barrierless technology to operate digital data and models of objects of a mining technology with a view to solving tasks in geology, surveying and engineering. An important component of a barrierless technology is a single virtual digital space for the database translation when using program products based on different object models. Such technology is implementable through formation of a digital platform containing a basic function to operate object models in digital space and API-functions to integrate the created tools into this digital space. The requirements of the digital platform are to the largest degree met by the program products of mining and geological information systems. In the digital space of such systems, 3D modeling is performed and basic mining and geological problems are solved. The article formulates the main functionality standards of such digital platform and describes the current situation in creation of the platform using the mining and geological information system (MGIS) MINEFRAME at the Mining Institute, KSC RAS, and at MINEFRAME Laboratory LLC.
Digital mining technologies, digital transformation, mining and geological information system, 3D models, digital platform, work place, import substitution, tech stack, basic function
DOI: 10.1134/S1062739124040148
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IDENTIFICATION OF MINING WASTE DISPOSAL FACILITIES USING REMOTE SENSING DATA
Yu. P. Galchenko*, Yu. A. Ozaryan**, T. V. Kozhevnikova***, and V. E. Okladnikov
Academician Melnikov Institute of Problems of Comprehensive Development of Mineral Resources—IPKON, Russian Academy of Sciences,
Moscow, 111020 Russia
*e-mail: schtrek33@mail.ru
Institute of Mining—Detached Division, Khabarovsk Science Center, Far Eastern Branch,
Russian Academy of Sciences,
Khabarovsk, 680000 Russia
**e-mail: ozaryanigd@gmail.com
Computational Center—Detached Division, Khabarovsk Science Center, Far Eastern Branch, Russian Academy of Sciences,
Khabarovsk, 680000 Russia
***e-mail: ktvsl@mail.ru
The article presents an analysis procedure for remote sensing imagery for monitoring ground surface objects. The studies on development of an algorithm for identifying mining waste disposal facilities on ground surface are described. The source data were Sentinel-2 and Landsat 5–8 images of the southern area in the Russian Far East. Using Earth Engine platform, the vegetation index is calculated for each pixel using the function of normal distance, and the test area is generated using a standard tool. Pixels were converted to square units using the reduce() method. The proposed procedure is of current interest in monitoring various objects (tailings ponds, surface mines, waste dumps, etc.) at different stages of development.
Algorithm, waste, satellite image, remote sensing, reclamation, disturbed land, geoinformation system, vegetation index
DOI: 10.1134/S106273912404015X
REFERENCES
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7. Jabłońska, K., Maksymowicz, M., Tanajewski, D., Kaczan, W., Zięba, M., and Wilgucki, M., MineCam: Application of Combined Remote Sensing and Machine Learning for Segmentation and Change Detection of Mining Areas Enabling Multi-Purpose Monitoring, Remote Sensing, 2024, vol. 16, no. 6, p. 955.
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MINING ECOLOGY AND SUBSOIL MANAGEMENT
MINING RECIRCULATED AND WASTE WATER TREATMENT USING ADSORBENTS MADE OF ZEOLITE-BEARING ROCKS FROM THE KHOLA DEPOSIT
K. K. Razmakhnin*, L. V. Shumilova, and I. B. Razmakhnina
Chita Division, Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences,
Chita, 672032 Russia
*e-mail: igdranchita@mail.ru
Environmental Industrial Policy Center–Research Institute,
Moscow, 115054 Russia
It is found that zeolite-bearing rocks from the Khola deposit can be dressed toward manufacture of high-quality sorbents to remove impurities from waste and recirculated water, and the relevant processing circuit is proposed. The mineral composition of the Khola zeolite-bearing rocks is described, and their electromagnetic and electrostatic separation results are reported. The layout of a continuous adsorption plant using zeolite-bearing rocks is developed. The sorption capacity of original and dressed zeolite-bearing rocks from the Khola deposit is tested in model solutions. The test data of arsenic adsorption using zeolite-bearing rocks are presented. The efficiency of zeolite-bearing rocks in removal of arsenic, fluorine, zinc, lead, nickel and chrome from a model solution of waste water is evaluated and compared. The prospects of using zeolite-bearing rocks in mine waste water treatment and in removal of impurities is assessed. The resultant purification boasts high-value results which ensure the required quality of waste water.
Zeolite-bearing rocks, Khola deposit, purification, recirculated and waste water, arsenic, sorption, best available technologies, beneficiation, adsorption plant
DOI: 10.1134/S1062739124040161
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5. Sambursky, G.А., Ustinova, О.V., and Leont’eva, S.V., Standardization Features of Chemical Reagents for Preparation of Drinking Water (by the Example of Aluminum Polyoxychloride Coagulant), Vodosnabzhenie i Sanitarnaya Tekhnika, 2020, no. 1, pp. 15–22.
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