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Journal articles on the topic 'Mine workings'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 July 2025

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1

Demin, V. F., B. E. Issakov, A. M. Suimbayeva та E. Bilisbekkyzy. "Көмір шахталары жағдайында тау-кен қазбаларын қолдау параметрлерін негіздеу". Горный журнал Казахстана, № 8(220) (15 вересня 2023): 23–28. http://dx.doi.org/10.48498/minmag.2023.220.8.001.

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At greater depths of development of seams in the Karaganda basin, the multiplicity of intersection of mine workings reaches a value of 2, 3 and even 4. In general, maintenance costs increase with depth and account for 5% of total costs at shallow depths, and up to 15% at greater depths. Therefore, the problem of protecting and maintaining mine workings at great depths in the Karaganda basin is becoming a topical issue in the technology of coal mining. One of the rational ways to improve the condition of mine workings and save material resources is the use of anchoring. The volume of implementa

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2

Kostenko, Viktor, Olha Bohomaz, Tetiana Kostenko, and Andriy Berezovskyi. "MECHANISM OF COAL AEROSOL EXPLOSION DEVELOPMENT IN AN EXPERIMENTAL MINE WORKING." Rudarsko-geološko-naftni zbornik 38, no. 2 (2023): 135–42. http://dx.doi.org/10.17794/rgn.2023.2.10.

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Today there is not enough scientific data on the energy level and the velocity of an explosion in actual mine workings, which have a cross-sectional area larger than experimental mine workings. The objective of the paper is to justify the energy parameters of an explosion in actual mine workings based on the disclosure of the fire front development mechanism when coal dust explodes in an experimental mine working with a limited cross-sectional area. These studies can be the basis for choosing the speed of action and the strength of the means of the localization of dust explosions. The main res

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3

Cała, Marek, Antoni Tajduś, Wacław Andrusikiewicz, et al. "Long Term Analysis of Deformations in Salt Mines: Kłodawa Salt Mine Case Study, Central Poland." Archives of Mining Sciences 62, no. 3 (2017): 565–77. http://dx.doi.org/10.1515/amsc-2017-0041.

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AbstractLocated in central Poland, the Kłodawa salt dome is 26 km long and about 2 km wide. Exploitation of the dome started in 1956, currently rock salt extraction is carried out in 7 mining fields and the 12 mining levels at the depth from 322 to 625 meters below sea level (m.b.s.l.). It is planned to maintain the mining activity till 2052 and extend rock salt extraction to deeper levels. The dome is characterised by complex geological structure resulted from halokinetic and tectonic processes.Projection of the 3D numerical analysis took into account the following factors: mine working distr

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Salieiev, I. A., V. I. Bondarenko, H. A. Symanovych, and I. A. Kovalevska. "Development of a methodology for assessing the expediency of mine workings decommissioning based on the geomechanical factor." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 4 (2021): 10–16. http://dx.doi.org/10.33271/nvngu/2021-4/010.

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Purpose. Substantiation of the methodology for predicting the state of mine workings based on the study on geomechanical processes when assessing the consequences of mine closure taking into account the entire period of their existence, during which the development of displacement with various intensity occurs in the surrounding coal-bearing mass. Methodology. The study is based on methods of analysis and synthesis, methods of comparison, abstraction, analogy, calculation and construction. The methods of mine tool observations of the manifestations of rock pressure and their processing by meth

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Krukovskyi, Oleksandr, Yurii Bulich, Serhii Kurnosov, Oleksii Yanzhula, and Vladimir Demin. "Substantiating the parameters for selecting a pillar width to protect permanent mine workings at great depths." IOP Conference Series: Earth and Environmental Science 970, no. 1 (2022): 012049. http://dx.doi.org/10.1088/1755-1315/970/1/012049.

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Abstract Application of a method to protect permanent mine workings by large pillars requires thorough analysis of geomechanical processes aimed at providing stability for a mine working during its long-term operation. The purpose of the paper is to study the processes of coal rock mass deformation to substantiate the selection of the protective pillar width. The examples to be considered are represented by mining-geological conditions of a central panel of PJSC Colliery Group “Pokrovske” where four permanent mine workings are planned to be driven. To substantiate the width of protective pilla

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6

Demin, Vladimir, Elvira Khalikova, Mukhammedrakhym Rabatuly, et al. "Research into mine working fastening technology in the zones of increased rock pressure behind the longwall face to ensure safe mining operations." Mining of Mineral Deposits 18, no. 1 (2024): 27–36. http://dx.doi.org/10.33271/mining18.01.027.

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Purpose. The research aims to substantiate the technological solutions to ensure the rock mass stability through a rational approach to strengthening the zones of increased rock pressure behind the longwall face. Methods. To achieve the purpose set, a complex research method is used, which includes an analysis of practical experience in mining medium-thickness flat-lying coal seams, a study of the stress-strain state of rocks above the coal mass marginal area, and mine research into the influence of mining-technical factors on the state of zonal preparatory workings. Findings. The patterns of

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7

Fu, Yaokun, Jianxuan Shang, Zhenqi Hu, et al. "Ground Fracture Development and Surface Fracture Evolution in N00 Method Shallowly Buried Thick Coal Seam Mining in an Arid Windy and Sandy Area: A Case Study of the Ningtiaota Mine (China)." Energies 14, no. 22 (2021): 7712. http://dx.doi.org/10.3390/en14227712.

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An observatory was established at the Ningtiaota Mine (China) in order to investigate the surface deformation pattern of N00 method workings mining in shallow buried thick coal seams in a windy-sand area. The observatory allows one to measure the coupling between the periodic changes of parameters related to ground subsidence and ground cracks with workings advancement. The data monitored in the field indicate that when the adjacent mining workings are mined below the ground, a sinkhole basin with a larger impact area will be formed. New ground fractures are formed above the mining area to con

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8

Solodyankin, Olexandr, Sergey Hapieiev, Mikhail Vygodin, and Valentin Yanko. "Energy Efficient Technologies to Support Mine Workings under Complicated Geomechanical Conditions." Advanced Engineering Forum 25 (November 2017): 35–42. http://dx.doi.org/10.4028/www.scientific.net/aef.25.35.

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Objective of the studies is the substantiation of energy efficient technologies to support permanent mine workings under complicated conditions of mines in Western Donbass. The results of analysis of geomechanical processes within rock mass neighbouring extended mine working have been demonstrated. The possibility to fill up underpropped area at different stages of a mine working construction has been shown. Efficient technology to improve the stability of mine workings by means of underpropped area filling up with hardening mixtures pneumatically has been considered. The results of the new te

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9

Krukovskyi, Olexandr, Viktoriia Krukovska, and Yurii Vynohradov. "APPLICATION OF ROOF BOLTING TECHNOLOGY FOR MINE WORKINGS IN GAS- AND WATER-BEARING ROCKS." JOURNAL of Donetsk Mining Institute, no. 1 (2022): 56–67. http://dx.doi.org/10.31474/1999-981x-2022-1-56-67.

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Purpose. To substantiate the use of roof bolting for mine workings as a technological way to reduce gas and water inflows into mine workings and to develop the method of reducing water inflow with the use of combined frames and bolts supporting. Methodology. Numerical modelling method for coupled processes of rock mass strain and fluid filtration has been applied. The model is based upon fundamental ideas of mechanics of solids and filtration theory. The problem has been solved using a finite element method. The influence of stress field on formation of the filtration area, the effect of chang

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10

Snihur, Vasyl, Volodymyr Bondarenko, Iryna Kovalevska, Oleksandr Husiev, and Iryna Shaikhlislamova. "Optimization solution substantiation for resource-saving maintenance of workings." Mining of Mineral Deposits 16, no. 1 (2022): 9–18. http://dx.doi.org/10.33271/mining16.01.009.

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Purpose. Substantiate the expediency of optimizing decision-making in resource-saving maintenance of mine workings. Methods. The concept of ensuring the conditions for the repeated use of mine working is based on modern methods of managing the rock pressure manifestations, conducting multifactorial computational experiments, experimental verification of the principles’ implementation during effective use of resources in full-scale conditions. Findings. The directions of improving the fastening and protection structures, which ensure the stability of reused mine workings, have been determined.

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Popov, M. D., D. S. Kormshchikov, M. A. Semin, and L. Yu Levin. "Calculation of Air Flows Stability in the Mine Workings by the Factor of Thermal Depression in the Analytical Complex «Aeroset»." Occupational Safety in Industry, no. 10 (October 2020): 24–32. http://dx.doi.org/10.24000/0409-2961-2020-10-24-32.

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Underground fires are one of the most serious emergencies that occur during mining operations. Analysis of possible scenarios for its development is a mandatory measure when designing new mine workings and when developing a plan for immediate elimination of accidents at the existing mine workings. The main danger that an underground fire creates for the mine ventilation system is a change in the ventilation mode and, accordingly, a change in the direction of movement of the air and harmful gases released during combustion. It is almost impossible to calculate in manual mode all the possible sc

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12

Latyshev, O. G., and D. V. Prischepa. "FRACTAL CHARACTERISTICS ANALYSIS OF MINE WORKINGS GEOMETRY FOR THE ESTIMATION OF SMOOTH WALL BLASTING QUALITY." Mining science and technology, no. 3 (December 31, 2018): 26–34. http://dx.doi.org/10.17073/2500-0632-2018-3-26-34.

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The work examines the ways of estimating the smooth wall blasting quality when excavating mine workings. One of the main criteria is to achieve “smooth” mine working contour. It is shown that the mine working contour line represents a fractal object; its geometry is properly estimated by fractional fractal dimension. The definition of fractal dimension is based on the Richardson’s law, which connects the length of infinitely broken line and measurement interval. The calculation algorithm of fractal dimension in computer program is introduced. The analysis of real mine working contours which ar

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13

Kostenko, Viktor, Yuriy Gamiy, Tetiana Kostenko, Sergii Tsvirkun, and Maksym Udovenko. "DYNAMICS OF MOTION OF GASES FROM A SOURCE OF SPONTANEOUS COMBUSTION OF COAL IN MINE WORKINGS." Rudarsko-geološko-naftni zbornik 36, no. 2 (2021): 109–17. http://dx.doi.org/10.17794/rgn.2021.2.10.

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The object of this paper is to study the specificity of the dynamics of carbon monoxide in mining to determine the location of the source of coal self-heating or spontaneous combustion. The Fire Dynamics Simulator software package was used to model the gas hazard of coal mine workings. Given the typical details for the western coal basin of Donbas geo metric dimensions of workings, properties of coal, etc., a model of a fragment of emergency mining of a coal mine was created, which allows for the display of geometric and physical similarity to processes in actual mine workings. The results of

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14

Avdeev, A. N., and T. F. Kharisov. "PREDICTION OF THE SAFE SERVICE LIFE OF MINE WORKINGS." News of the Tula state university. Sciences of Earth 4, no. 1 (2021): 223–32. http://dx.doi.org/10.46689/2218-5194-2021-4-1-223-232.

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The paper presents the results of the study of the actual condition and service life of capital mine workings of the mine "Mnogovershinnoye". Typical forms of assessment of geo-logical conditions with subsequent estimation of the time of standing of the mine workings without support were established. The main types of supports and the character of their dis-turbance during the operation of workings have been determined with the subsequent sub-stantiation of the service life of mud-base concrete, metal arch and anchor supports under different conditions. On the basis of the commissioning date o

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15

Gaidachuk, V. V., V. I. Koshel’, and P. Z. Lugovoi. "Stress distribution around mine workings." International Applied Mechanics 46, no. 9 (2011): 981–86. http://dx.doi.org/10.1007/s10778-011-0388-7.

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16

Krukovskyi, Oleksandr, Viktoriia Krukovska, Yurii Bulich, Serhii Demchenko, and Iryna Konstantynova. "Rock bolt and frame support of mine workings with a compound cross-section: Collective refuge chambers for mine workers." Mining of Mineral Deposits 18, no. 2 (2024): 28–37. http://dx.doi.org/10.33271/mining18.02.028.

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Purpose is to study the influence of mining and geological conditions on the time-dependent stability of the collective refuge chamber for mine workers with the adjacent mine workings and develop support schemes for different conditions of construction of such mine workings. Methods. Numerical modelling methods of the connected processes of elastoplastic deformation of gas-bearing rocks and gas filtration within the area disturbed during mining operations were used to study stability of mine workings with a compound cross-section, i.e. the collective refuge chambers and its adjacent extraction

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17

Gao, Yan, Chunfu Wei, Xiaodong Miu, et al. "Study on Microseismic Activity Characteristics of Composite Coal Pillar in 21201 Coal Face of Hulusu Mine." Academic Journal of Science and Technology 5, no. 2 (2023): 13–17. http://dx.doi.org/10.54097/ajst.v5i2.5924.

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Hulusu coal mine adopts “121 method” for back mining, and the coal pillar between adjacent workings is 30m. 21102 working have been mined for more than 3 years, leaving the auxiliary return airway has not been repaired for a long time which results in the serious deformation. If employs the adjacent 21201 workings to mine, the cost of reusing the 21102 auxiliary return airway is high. Therefore, the mine dug a new return airway 10m away from the mine, and forming a 45m composite coal column with double coal pillars and double return airways. Based on the ARAMIS M\E microseismic monitoring syst

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18

Pavlov, Stanislav A. "SOLUTION OF THE PROBLEM OF TRANSIENT AIR DISTRIBUTIONIN VENTILATION NETWORKS OF MINES, TAKING INTO ACCOUNT THERMODYNAMIC AIR FLOW PARAMETERS." Interexpo GEO-Siberia 2 (July 8, 2020): 138–47. http://dx.doi.org/10.33764/2618-981x-2020-2-138-147.

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This paper highlights the importance of calculating transient air distribution in mine ventilation networks, taking into account heat ventilation parameters of mine working atmosphere. The change in the temperature of an air flow as it moved along a working with a constant wall temperature was studied. For the network mathematical model of transient air distribution in a ventilation network of the mine, a new resolver was developed which takes into account the revealed regularities of change in air flow temperature from its velocity, temperature and cross-sectional area of mine workings, and a

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19

Zholmagambetov, Nurbek, Elvira Khalikova, Vladimir Demin, Anna Balabas, Rabbel Abdrashev, and Saule Suiintayeva. "Ensuring a safe geomechanical state of the rock mass surrounding the mine workings in the Karaganda coal basin, Kazakhstan." Mining of Mineral Deposits 17, no. 1 (2023): 74–83. http://dx.doi.org/10.33271/mining17.01.074.

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Purpose. The research purpose is to determine the instability zones in the host rocks and the dynamics of propagation of active fracturing zones to ensure the stability of the rock mass surrounding the mine workings. Methods. The research uses a set of analytical and experimental studies to determine the dynamics of the deformation process development in the coal-rock mass surrounding the mine workings. Mathematical modeling of the stress-strain state of the rock mass surrounding the active extraction workings is performed using the numerical method of finite elements in modern AN-SYS, Mergel

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20

Khomenko, Oleh, Maksym Kononenko, Ihor Kovalenko, and Denys Astafiev. "Self-regulating roof-bolting with the rock pressure energy use." E3S Web of Conferences 60 (2018): 00009. http://dx.doi.org/10.1051/e3sconf/20186000009.

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The perspective of discovery of zonal disintegration phenomenon of rocks around underground mine workings is analyzed. The methodological stages for research of this phenomenon are shown. The physics of zonal disintegration of rocks around underground mine workings is disclosed. There are described the possibilities of advanced entropy method and developed energy method that allow to investigate a phenomenon of zonal capsulation of underground mine workings. The sequence of research of this phenomenon parameters is presented. The order of choice of stable shape and resource-saving support in u

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Zakorshmenniy, Iosif, Igor Kharitonov, Nikita Yagel, Anastasia Svishcheva, and Yury Maksimenko. "Assessment of contour deformations of reused mine workings." E3S Web of Conferences 548 (2024): 08024. http://dx.doi.org/10.1051/e3sconf/202454808024.

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The paper describes studies to assess the impact of high-intensity mining of flat-lying coal seams in difficult mining and geological conditions on the stability of reused development workings. A scheme for computer modeling of changes in the stress-strain state of a layered carbon rock mass, including development workings, at different positions of the working face is proposed. For the conditions of one of the operating mines of the Pechersk coal basin (Komi Republic, Russia), numerical experiments were carried out using the finite element method in the MIDAS / GTS NX software package. To des

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SOSNOVSKAYA, E. L., and A. N. AVDEEV. "STUDY OF THE STRESS-STRAIN STATE OF FIELD WORKINGS DURING THE STEEP-DIPPING VEINS MINING IN ORDER TO PREDICT WORKINGS STABILITY." News of the Tula state university. Sciences of Earth 3, no. 1 (2023): 436–47. http://dx.doi.org/10.46689/2218-5194-2023-3-1-436-447.

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The paper presents the results of the study of the stress-strain state of field workings located in the zone of influence of stoping operations during the excavation of low- and medium-capacity steeply declining gold veins. Laws of stress distribution on the contour of field workings depending on the distance from the mined-out space were determined. On the basis of the determined regularities the methods for assessing the degree of stability of field preparatory workings and permanent mine workings, undermined by the mined-out space, were proposed.

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Nazarenko, M., S. Khomenko, and S. Sholokh. "Mine workings planning for mine field development inside geoinformation system K-MINE." Mining of Mineral Deposits 7, no. 3 (2013): 255–59. http://dx.doi.org/10.15407/mining07.03.255.

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Zhumabekova, A., V. Demin, E. Abeuov та G. Tanekeyeva. "Технологии крепления горных выработок на основе управления напряженно-деформированным состоянием". Горный журнал Казахстана, № 1(213) (31 січня 2023): 40–47. http://dx.doi.org/10.48498/minmag.2023.213.1.004.

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The development and pilot testing of high-tech resource-saving methods and active means of securing workings and stabilizing the rock mass is still relevant in the coal industry, taking into account the high technical and economic effect and improving the safety of mining operations. To maintain development workings in front of the longwall, accessible domestic technologies are being developed based on the management of the stress-strain state of the near-contour rock mass. This review provides an opportunity to: analysis of the practical use of anchoring and resin fixing compounds in coal min

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Nakaryakov, E. V., M. A. Semin, E. L. Grishin та E. V. Kolesov. "Analysis of the Regularities of Accumulation and Removal of the Exhaust Gases from the Сombustion-engined Vehicles in the Dead-end Chamber-like Mine Workings". Occupational Safety in Industry, № 5 (травень 2021): 41–47. http://dx.doi.org/10.24000/0409-2961-2021-5-41-47.

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The paper presents the results of the mathematical modeling of the conditions for ventilating extended blind dead end stope chamber-like mine workings of large cross-section, which are formed by expanding the preparatory rifled mine working when loading and hauling machines with an internal combustion engine are operating in them. The experience of using CFD-modeling in solving problems of ventilation of such mine workings is analyzed. Numerical dependences of the change in the average concentration of exhaust gases at the workplace of the load-haul-dump machine operator on the operating time

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Skopintseva, O. V., and S. V. Balovtsev. "Evaluation of the influence of aerodynamic aging of production on aerological risks on coal mines." Mining informational and analytical bulletin, no. 6-1 (May 20, 2020): 74–83. http://dx.doi.org/10.25018/0236-1493-2020-61-0-74-83.

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The results of a study of the aerodynamic aging of mine workings are presented. It is established that the local workings located in the zone of active manifestation of rock pressure are most deformed. The average rate of increase in their resistance reaches 0.0112 N×s2 / m9×yr, and the degree of increase in their resistivities over 4-9 years of existence reaches 7-8 times. The rate of aging of the mine workings is much lower than that of the local workings, averaging 0.0014 N×s2/m9×year for the inclined workings on average over the entire period of their existence, and 0.0009 N×s2/m9×year for

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Mučková, Jitka. "Searching for old Mine Workings Through the use of Handheld Gnss Receivers / Vyhledávání Starých Důlních Děl Pomocí Ruční Aparatury Gnss." GeoScience Engineering 57, no. 3 (2011): 51–55. http://dx.doi.org/10.2478/gse-2014-0027.

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Abstract Old mine workings situated in a landscape pose a very serious problem from the point of view of people security and property protection. For that reason it is necessary to look for these mine workings and liquidate them. The use of handheld GNSS receivers is one of alternative methods of searching for old mine workings. The accuracy of handheld GNSS receives does not reach the level of accuracy of geodetic apparatuses, but it is sufficient for the purpose of searching for locations of old mine workings as is clear from the considerations given in this article. The test was performed a

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Shishkov, Roman, and Valery Fedorin. "Justification of parameters mining and technological structure of modular mine sites in terms water disposal." E3S Web of Conferences 174 (2020): 02013. http://dx.doi.org/10.1051/e3sconf/202017402013.

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The high cost of any traditional coal mines consists of many factors their operation, one which is basically drainage. In mines and sections Russia, on average, for each ton coal mined, more than 2 m3 water is pumped from mine workings to day surface. For this work, more than 10 thousand pumping units with a total installed capacity about 1 million kW are used at mining enterprises. Therefore, rational design and proper operation, in particular, drainage plants mining enterprises are important technical and economic tasks today and in future, which leads to increased production volumes and a t

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Barabash, Mykhailo, Ildar Salieiev, and Hennadii Symanovych. "Technical and technological aspects of the coal mine closure based on the geomechanical component assessment." Mining of Mineral Deposits 15, no. 3 (2021): 7–15. http://dx.doi.org/10.33271/mining15.03.007.

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Purpose.Development of a comprehensive methodology for assessing the state of mine workings based on the analysis of their contour displacement patterns when solving the problem of minimizing the risks during the closure of coal mines in Ukraine. Methods. Based on an integrated analysis of international and domestic trends when assessing the consequences of mine closure, the main provisions of using the method of instrumental mine observations have been substantiated. When solving the problem, the approaches of regulatory documents are taken into account to identify the geomechanical situation

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d’Obyrn, Kajetan, and Joanna Hydzik-Wiśniewska. "Assessment of Rock Mass Stability in the Historic Area of Levels IV-V of the “Wieliczka” Salt Mine." Archives of Mining Sciences 62, no. 1 (2017): 189–202. http://dx.doi.org/10.1515/amsc-2017-0014.

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Abstract As a result, of more than 700 years of exploitation in the Wieliczka Salt Mine, a network of underground workings spreading over eleven levels was created. All mine workings of significant historic and natural qualities and the majority of functional mine workings designated to be preserved are located on levels I to V. The most precious of them, available to tourists, are located in the central part of the Mine on levels I-III. The Mine is not anticipating to make levels IV, Kołobrzeg and V available for a wider range of visitors, even though there are historically and naturally prec

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VALIEV, N. G. O., YU A. DICK, V. P. PETROV, and D. R. BUDNIK. "DEVELOPMENT OF INNOVATIVE TECHNOLOGY OF UNDERGROUND METHOD OF FASTENING THE WORKINGS WITH ROCK MELT." News of the Tula state university. Sciences of Earth 3, no. 1 (2023): 243–49. http://dx.doi.org/10.46689/2218-5194-2023-3-1-243-249.

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The research is carried out in order to find an alternative method of fixing the mine workings, corresponding to the mining-geological and mining-technical conditions of finding the mine workings and ensuring safety of mining operations. Based on the analysis of mining-geological and technical conditions of mines, the experience of using stone casting in related industries and a possible alternative option are considered. For further study of the proposed hypothesis of the stone-casting method of fixing mine workings, variants of directions for studying the properties of rocks are proposed. Th

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32

Galkin, Alexandr, Ivan Kurta, and Xenia Korotkova. "Configuration of heat-retaining mine workings." Energy Safety and Energy Economy 5 (October 2018): 40–41. http://dx.doi.org/10.18635/2071-2219-2018-5-40-41.

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33

Rubtsov, A. A. "SAFETY FASTENING OF UNDERGROUND MINE WORKINGS." Ugol', no. 02 (February 8, 2020): 8–12. http://dx.doi.org/10.18796/0041-5790-2020-2-8-12.

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34

Shapoval, Volodymyr, Oleksandr Shashenko, Bohdan Morklianyk, Oleksandr Skobenko, and Sofiia Barsukova. "Assessing the stability of underground workings in urban infrastructure." IOP Conference Series: Earth and Environmental Science 1348, no. 1 (2024): 012061. http://dx.doi.org/10.1088/1755-1315/1348/1/012061.

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Abstract This article presents the analytical formulas necessary for making optimal design and technological decisions when laying shallow underground mine workings. They make it possible to determine the following critical parameters of mine workings: the critical height of the lift of the arch of natural equilibrium is the surface above which the rock is in an undestroyed state; stability coefficient of the arch of natural equilibrium (it shows in what state the rock above the excavation is); critical rock pressure is the pressure that, if exceeded, causes the rock to collapse above the work

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35

Ismayilov, R. T. "Increasing the efficiency of ventilation of the Gadir mine." Azerbaijan Oil Industry, no. 03 (March 2024): 4–7. http://dx.doi.org/10.37474/0365-8554/2024-03-4-7.

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The article is dedicated to the study of effective ventilation of underground mines on the example of the Gadir mine. As is known, the lack of effective ventilation in underground mines makes mining operations difficult and poses a threat to miners’ health. Therefore, it is necessary to pay special attention to the effectiv ventilation of underground mine workings. The Gadir deposit, located in the territory of the Republic of Azerbaijan, is of great strategic importance. Development of the deposit is carried out by the underground method. The article provides brief information about the mine,

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Rudakov, Dmytro, Yajun Sun, and Oleksandr Inkin. "NUMERICAL MODELLING TOXIC SUBSTANCE TRANSPORT IN MINE WATER FLOWS." JOURNAL of Donetsk mining institute 53, no. 2 (2023): 71–81. http://dx.doi.org/10.31474/1999-981x-2023-2-71-81.

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The purpose of this work is to develop and test a methodology for modelling the migration of toxic substances left after mining in mine water flows in a system of hydraulically connected mine workings of various sizes and elevations depending on the drainage parameters. Methods of research include the analysis of factors that influence the formation of the hydraulic regime in flooded mines, the accumulation and transport of toxic substances. Parameters of moving toxic substances in mine waters are calculated using hydraulic flow equations written for mining workings, with flooded workings bein

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Levin, Lev, Maksim Popov, Mikhail Semin, and Sergey Zhikharev. "Experimental and Numerical Study of Air Flow Reversal Induced by Fire in an Inclined Mine Working." Applied Sciences 14, no. 15 (2024): 6840. http://dx.doi.org/10.3390/app14156840.

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Effective fire prevention in mine workings and tunnels requires a thorough theoretical analysis of the heat and mass transfer processes within these structures. This involves using established models to calculate non-isothermal air flow dynamics in long tunnels and mine workings. While the ventilation of tunnels has been extensively studied, significant challenges persist regarding mine ventilation systems, particularly due to their complex and branched topology. This study aimed to address these challenges and gaps in mine ventilation. We designed a laboratory bench to simulate an inclined mi

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STAS, G. V., D. N. SHKURATSKY, V. G. SHIKHMANOV, and V. L. RYBAK. "THEORETICAL MODEL SUBSTANTIA TION OF A METHANE HAZARDOUS MINE FOR SOL VING FORECAST TASKS ON THE EXAMPLE OF KUZBASS MINES." News of the Tula state university. Sciences of Earth 2, no. 1 (2023): 443–54. http://dx.doi.org/10.46689/2218-5194-2023-2-1-443-454.

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Statistical analysis of accidents in coalmines by the aerogasdynamic factor shows that the effectiveness of existing methods for predicting the risk of explosions of methane-air mixture in the mine workings of coalmines is unsatisfactory. So it is necessary to improve the physical model and mathematical description of the threat of explosive gas situations in the mine workings of a model mine. In general, a systematic approach to reducing the risk and localizing the consequences of methane explosions in coalmines comes down to solving the following problems. Substantiation of algorithms and de

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Drăgoescu, Răzvan, Emeric Chiuzan, Ion Gherghe, Adrian Matei, and Alexandru Cămărășescu. "Classification of the Ocnele Mari saline from the point of view of gas emissions (CH₄ and CO₂)." MATEC Web of Conferences 373 (2022): 00016. http://dx.doi.org/10.1051/matecconf/202237300016.

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Currently in Romania there are six salt mines which exploit the salt through underground mine workings: Dej salt mine, Tg. Ocna salt mine, Slanic Prahova salt mine, Ocnele Mari salt mine, Cacica salt mine, and Praid salt mine. The purpose of the present paper work is to establish the methane release (explosive gas) and the carbon dioxide release regime in mine workings from Praid salt mine in order to classification. This verification of the Ocnele Mari salt mine classification has been carried out during September 2021 and there have been taken into account the following elements: - Geologica

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Olkhovskiy, D. V., O. S. Parshakov, and S. A. Bublik. "Study of gas hazard pattern in underground workings after blasting." Gornye nauki i tekhnologii = Mining Science and Technology (Russia) 8, no. 1 (2023): 47–58. http://dx.doi.org/10.17073/2500-0632-2022-08-86.

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Determining the sources of hazardous and toxic substances released into mine air, their gas composition, as well as providing each such source of pollution with the required amount of fresh air are important issues in terms of ensuring normal healthy and safe working conditions for miners. This paper studies blasting as one of the most dangerous sources of mine air pollution. The study was carried out for a long dead-end exploration working, and a development (preparatory) working of a copper-nickel mine. In accordance with the federal rules and regulations (FNiP), a number of requirements, in

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Daniliev, Sergei, Natali Danilieva, Sergei Mulev, and Vladimir Frid. "Integration of Seismic Refraction and Fracture-Induced Electromagnetic Radiation Methods to Assess the Stability of the Roof in Mine-Workings." Minerals 12, no. 5 (2022): 609. http://dx.doi.org/10.3390/min12050609.

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This paper considers the joint use of two popular geophysical methods (fracture-induced electromagnetic radiation and seismic refraction tomography) to assess the stress-state in underground mine-workings. Such a combination of two indirect methods allows the identification of zones of increased stress in the rock along the axis of the mine-workings, and zones of intense weakening or disintegration in the rock massif above the roof of the mine-workings. The measurements of longitudinal and compressive wave speeds were used to calculate 2D sections of Young’s modulus and Poisson’s ratio to asse

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Iskakov, Yerkin, Dikhan Amanzholov, and Zhandos Kenessov. "Innovative approaches to stabilizing underground mine workings in unstable rock masses by creating a preliminary protective shield." Mining of Mineral Deposits 19, no. 2 (2025): 65–74. https://doi.org/10.33271/mining19.02.065.

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Purpose. The research is aimed at developing the technology for chemical strengthening of mine workings using epoxy reagent to create a protective shield in unstable zones of rock masses, as well as at assessing the strength of the strengthened areas and improving the stability of mine workings. Methods. During the research, core samples extracted from the epoxy reagent-strengthened mass were tested to assess their strength and resistance to external influences. Numerical modeling was performed in ANSYS Mechanical 14.5 to analyze the stress-strain state of strengthened and non-strengthened are

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Demin, V. F., and V. Zhurov. "Anchor bolt of rock massif in coal mines to decrease soil rock heaving of the workings." Kompleksnoe Ispolʹzovanie Mineralʹnogo syrʹâ/Complex Use of Mineral Resources/Mineraldik Shikisattardy Keshendi Paidalanu 325, no. 2 (2022): 80–86. http://dx.doi.org/10.31643/2023/6445.21.

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During the maintenance of workings, the effects of soil rock heaving, caused by plastic deformation and extrusion into the excavation cavity under the action of the rock pressure, are usually eliminated. The identified patterns of change in the stress-strain state of coal-rock massifs (displacements, stresses, cracking zones), depending on the main mining-geological and mining-technical factors will allow to establish the optimal parameters of soil anchoring, technological schemes for decreasing soil rock heaving of mine workings to increase the stability of preparatory mine workings have been

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Toderaş, Mihaela, and Roland Iosif Moraru. "Mine Pressure and Rock Displacement Temporal Variation Analysis for Jiu Valley Directional Drifts in the Context of “n” Stability Criterion/Analiza Ciśnień I Chwilowych Przemieszczeń Skał W Badaniach Kierunkowych Wyrobisk W Kopalniach W Dolinie Jiu Z Uwzględnieniem Kryterium Stabilności ‘N’." Archives of Mining Sciences 59, no. 2 (2014): 455–66. http://dx.doi.org/10.2478/amsc-2014-0032.

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Abstract Ensuring mine workings stability over their entire operation period largely depends on the chosen support system and on their interaction with the surrounding rock. Looking at how the main horizontal mine workings are supported in Jiu Valley coal basin, we found that they fall into the category fulfilling a reinforcement role. From the data provided by the documentation of the collieries within this basin, it was found that there were generalized different metal - type supporting systems that with respect to operating and working mode are with constant or malleable strength and increa

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Lukienko, L. V., and M. N. Kamensky. "In work results of the analysis of the modes of work of mine electric locomotives in inclined mine workings are presented. The device which originality is protected by the Patent of the Russian Federation for useful model, allowing to ensure steady functioning of the gear rack-and-pinion which application allows to expand considerably scope of mine electric locomotives on inclined mine workings is offered." News of the Tula state university. Sciences of Earth 4, no. 1 (2019): 130–39. http://dx.doi.org/10.46689/2218-5194-2019-4-1-130-139.

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In work results of the analysis of the modes of work of mine electric locomotives in inclined mine workings are presented. The device which originality is protected by the Patent of the Russian Federation for useful model, allowing to ensure steady functioning of the gear rack-and-pinion which application allows to expand considerably scope of mine electric locomotives on inclined mine workings is offered.

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Feofanov, Andrey. "Popping of Cavities in the Near-Surface Coal-Bearing Strata of the Donets Basin." Natural Systems and Resources, no. 3 (January 2021): 19–26. http://dx.doi.org/10.15688/nsr.jvolsu.2020.3.3.

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Long-term research has proved the connection between old mine workings preserved at the outcrops of coal seams and land subsidence, and sinkhole collapse. Now the causes and types of such disturbances are determined, the most dangerous of which are caves, over various types of the abandoned mine workings. In addition to it, a method has been developed and improved for assessing the hazard rate of any abandoned working (cavity) with relation to sinkholes for mining and geological conditions of the Donets Basin. At the same time, a number of cases are known when cavities wiped out due to the fai

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Zharikov, Sergey, and Vyacheslav Kutuev. "On the issue of defining safe distances and overpressure under impact of shock air blast wave (Magnesitovaya mine)." E3S Web of Conferences 192 (2020): 01027. http://dx.doi.org/10.1051/e3sconf/202019201027.

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As the depth of mining increases, attention to the preservation of mine workings and mining blasting is steadily growing. Technological methods of effective mineral development are often limited by dynamic blasting impact causing short-period fluctuations in the rock mass. Therefore, correct explosion impact identification, to a great extent, determines effective mining trends. Some results of researches for minimum blasting impact on mining workings are given in the article. Calculation of safe distances and excess pressure at shock air impact of technological explosions on the Magnezitovaya

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48

Feofanov, Andrey. "PARAMETERS OF THE SHEAR PROCESS OVER ABANDONED MINE WORKINGS." SCIENTIFIC PAPERS OF DONNTU Series: “The Mining and Geology”, no. 1(31)-2(32) (2024): 85–97. https://doi.org/10.31474/2073-9575-2024-1(31)-2(32)-85-97.

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Purpose. The aim of the work is to establish the parameters of the displacement process during the activation of the rock mass above abandoned (old) mine workings preserved at shallow depths, timed to the outcrops of coal seams under sediments. Methodology. The paper uses archival materials on the history of the Donbas coal industry and the results of instrumental observations obtained at observation stations over several decades. Results. The results of the research have established the relative value of the maximum subsidence, the limiting angles and the angle of maximum subsidence during de

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Gorinov, S. A., I. Yu Maslov, and A. P. Filatov. "On the Risk of Area Occurrence with Reduced Oxygen in the Underground Mines when Developing Sulphide Ores." Occupational Safety in Industry, no. 1 (January 2021): 21–26. http://dx.doi.org/10.24000/0409-2961-2021-1-21-26.

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At the underground development of the sulfide deposits by the systems with a consolidating stowing, the temperature of the ore mass and the mine atmosphere increases due to the heat released during the hydration reaction of the hardening mixtures. This facilitates the activation of the oxidizing processes occurring in the sulfide ores. As a result, the areas with a reduced oxygen content are formed in the extended upstream workings. A decrease of the oxygen content in the working atmosphere below the critical values is a source of mortal danger for the underground mine personnel. These assumpt

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Demin, Vladimir, Elvira Khalikova, Tatyana Demina, Dinara Syzdykbaeva, Aibolat Karatayev, and Murat Mustafin. "Assessment of the stress-strain state of the rock mass surrounding cutting workings during coal seam mining." Mining of Mineral Deposits 19, no. 2 (2025): 38–46. https://doi.org/10.33271/mining19.02.038.

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Purpose. The research is aimed at developing scientifically sound principles of the technology for maintaining mine workings to ensure their stability during mining of coal seams in the Karaganda coal basin (Republic of Kazakhstan). The influence of fastening parameters on strengthening effect under conditions of controlled stress-strain state of the “host rocks – fastening elements” system is studied. Methods. The study includes an analysis of scientific-practical experience in operating mine workings and conditions for conducting underground operations. The stress-strain state of the mass is

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