Pub Date : 2023-07-01DOI: 10.30686/1609-9192-2023-3-64-70
V.V. Tetelmin
The paper presents a summary table of global warming energy patterns calculated using historical natural data accumulated by the world science. The analysis shows that in each successive decade contribution of the positive feedbacks to global warming is increasing as compared to the preceding decade. Each kilowatt-hour of energy produced and used by the humanity warms up our planet through the human-caused greenhouse effect by 18 kWh. The dependence functions of the radiative temperature equilibrium on the content of the three main greenhouse gases in the atmosphere have been derived. We propose functions for the dependence of the amount of accumulated thermal energy in the Earth's climatic system and the duration of global warming on the amount of the man-made greenhouse gases in the atmosphere. A forecast of the global sea level rise and the marginal frequency of natural disasters over time is provided. If the mankind has halved greenhouse gas emissions by 2060, the global warming will progress for about 210 years until it reaches the radiation equilibrium temperature of 4,2°C. By following this scenario, it will be possible to prevent a possible additional warming of the atmosphere by about 4,7°C in the future.
{"title":"Quantitative estimation of global warming","authors":"V.V. Tetelmin","doi":"10.30686/1609-9192-2023-3-64-70","DOIUrl":"https://doi.org/10.30686/1609-9192-2023-3-64-70","url":null,"abstract":"The paper presents a summary table of global warming energy patterns calculated using historical natural data accumulated by the world science. The analysis shows that in each successive decade contribution of the positive feedbacks to global warming is increasing as compared to the preceding decade. Each kilowatt-hour of energy produced and used by the humanity warms up our planet through the human-caused greenhouse effect by 18 kWh. The dependence functions of the radiative temperature equilibrium on the content of the three main greenhouse gases in the atmosphere have been derived. We propose functions for the dependence of the amount of accumulated thermal energy in the Earth's climatic system and the duration of global warming on the amount of the man-made greenhouse gases in the atmosphere. A forecast of the global sea level rise and the marginal frequency of natural disasters over time is provided. If the mankind has halved greenhouse gas emissions by 2060, the global warming will progress for about 210 years until it reaches the radiation equilibrium temperature of 4,2°C. By following this scenario, it will be possible to prevent a possible additional warming of the atmosphere by about 4,7°C in the future.","PeriodicalId":36119,"journal":{"name":"Gornaya Promyshlennost","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135856953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The need to increase the capacity of crushing and processing facilities of mining and concentrating operations plants that develop deposits of hard and abrasive ores, most of which are concentrated within the Kursk Magnetic Anomaly, required solving a number of technological challenges in the crushing process. For this purpose, requirements were formulated as a result of analyzing characteristics of coarse, medium and fine ore crushing, based on which Uralmashplant JSC executed research and development activities aimed at upgrading the KKD-1500/180-2P crushers. As the result of this upgrade, the crushing chamber profile for hard and highly abrasive ores has been optimized to achieve an 8-10% increase in coarse crushing throughput capacity and a 29% increase in the reduction ratio. Due to the increased vertical adjustment of the mantle, more stable gradation of the KKD crushing product was ensured, while the time between relining was increased by 92% with a 48-50% reduction of repair and maintenance costs for relining of the KKD crushers. In addition, a 25% reduction in the number of the crusher blockages was noted, which further ensures the stability of the ore feed to the subsequent crushing and grinding stages. Field tests of the upgraded KKD-1500/180-2P crushers proved the following technical and economic effects in the medium and fine crushing stages: an increase in the volume of undersized material in scalping, a reduction in the product size in secondary crushing as a result of decreasing the crusher's closed side settings (CSS), a reduced cycle time of tertiary (fine) crushing with a decreased circulating load in secondary and tertiary crushing stages, which helped to increase the medium and fine crushing throughput capacity by 3-5%. The savings in maintenance and operating costs for the coarse, medium and fine crushers are estimated to be around 20%.
{"title":"Innovative solutions to improve the efficiency of coarse crushing in iron ore mining and processing plants","authors":"A.G. Lipatov, V.O. Furin, A.A. Kholodkov, A.G. Zhuravlev","doi":"10.30686/1609-9192-2023-3-93-100","DOIUrl":"https://doi.org/10.30686/1609-9192-2023-3-93-100","url":null,"abstract":"The need to increase the capacity of crushing and processing facilities of mining and concentrating operations plants that develop deposits of hard and abrasive ores, most of which are concentrated within the Kursk Magnetic Anomaly, required solving a number of technological challenges in the crushing process. For this purpose, requirements were formulated as a result of analyzing characteristics of coarse, medium and fine ore crushing, based on which Uralmashplant JSC executed research and development activities aimed at upgrading the KKD-1500/180-2P crushers. As the result of this upgrade, the crushing chamber profile for hard and highly abrasive ores has been optimized to achieve an 8-10% increase in coarse crushing throughput capacity and a 29% increase in the reduction ratio. Due to the increased vertical adjustment of the mantle, more stable gradation of the KKD crushing product was ensured, while the time between relining was increased by 92% with a 48-50% reduction of repair and maintenance costs for relining of the KKD crushers. In addition, a 25% reduction in the number of the crusher blockages was noted, which further ensures the stability of the ore feed to the subsequent crushing and grinding stages. Field tests of the upgraded KKD-1500/180-2P crushers proved the following technical and economic effects in the medium and fine crushing stages: an increase in the volume of undersized material in scalping, a reduction in the product size in secondary crushing as a result of decreasing the crusher's closed side settings (CSS), a reduced cycle time of tertiary (fine) crushing with a decreased circulating load in secondary and tertiary crushing stages, which helped to increase the medium and fine crushing throughput capacity by 3-5%. The savings in maintenance and operating costs for the coarse, medium and fine crushers are estimated to be around 20%.","PeriodicalId":36119,"journal":{"name":"Gornaya Promyshlennost","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135856949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Drilling and blasting operations are considered in the mining industry to be the most economical way to prepare the rock mass for extraction. Blasting is performed at various mining and geological conditions of different mining companies, thus the characteristics of drilling and blasting operations can have a significant impact on the detonation rate of the borehole charge, which is one of its most critical characteristics that affects the blast quality. Detonation velocity depends on many factors, the main of which include the quality of explosives preparation and their components, the density, diameter and height of the borehole charge, the booster parameters and its location within the borehole charge. The paper presents the results of measuring the detonation velocity of industrial explosives and records the impact of the booster weight on the detonation velocity.
{"title":"Impact of booster characteristics on the detonation velocity of composite explosives","authors":"Al.A. Galimyanov, K.A. Rudnitsky, K.V. Gildenbrant, S.I. Korneeva, E.N. Kazarina, V.I. Mishnev","doi":"10.30686/1609-9192-2023-3-130-133","DOIUrl":"https://doi.org/10.30686/1609-9192-2023-3-130-133","url":null,"abstract":"Drilling and blasting operations are considered in the mining industry to be the most economical way to prepare the rock mass for extraction. Blasting is performed at various mining and geological conditions of different mining companies, thus the characteristics of drilling and blasting operations can have a significant impact on the detonation rate of the borehole charge, which is one of its most critical characteristics that affects the blast quality. Detonation velocity depends on many factors, the main of which include the quality of explosives preparation and their components, the density, diameter and height of the borehole charge, the booster parameters and its location within the borehole charge. The paper presents the results of measuring the detonation velocity of industrial explosives and records the impact of the booster weight on the detonation velocity.","PeriodicalId":36119,"journal":{"name":"Gornaya Promyshlennost","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135856947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the context of the sanctions pressure, the main objective of the expenditure policy of the mining industry is to increase the efficiency of its operations while optimising its value. The study analyses the main factors affecting the expenditure policy of a mining company. It describes the value-based management methodology that applies the Activity-Based Costing (ABC) and the Deming Cycle tools from PDCA to develop a value-based management system to continually improve the operational efficiency and to reduce costs. Application of these tools jointly to manage mining operations is a powerful instrument that is both efficient and easy to use. The featured example of using these methods showed the model's ability to generate a bottomup baseline cost budget, identify and understand sources of cost variation and suggest possible solutions within a continuous improvement cycle. The model is not only applicable to underground mining, but can easily be adapted to any other mine or plant operation. An innovative methodology of value-based mining management is presented that is effective and easy to apply in a dramatically changing geopolitical environment.
{"title":"Expenditure policy of a mining company in changing geopolitical settings","authors":"Kaung Pyae Aung, E.I. Gorelkina, E.K. Abdulaev, N.A. Mishenina","doi":"10.30686/1609-9192-2023-3-143-153","DOIUrl":"https://doi.org/10.30686/1609-9192-2023-3-143-153","url":null,"abstract":"In the context of the sanctions pressure, the main objective of the expenditure policy of the mining industry is to increase the efficiency of its operations while optimising its value. The study analyses the main factors affecting the expenditure policy of a mining company. It describes the value-based management methodology that applies the Activity-Based Costing (ABC) and the Deming Cycle tools from PDCA to develop a value-based management system to continually improve the operational efficiency and to reduce costs. Application of these tools jointly to manage mining operations is a powerful instrument that is both efficient and easy to use. The featured example of using these methods showed the model's ability to generate a bottomup baseline cost budget, identify and understand sources of cost variation and suggest possible solutions within a continuous improvement cycle. The model is not only applicable to underground mining, but can easily be adapted to any other mine or plant operation. An innovative methodology of value-based mining management is presented that is effective and easy to apply in a dramatically changing geopolitical environment.","PeriodicalId":36119,"journal":{"name":"Gornaya Promyshlennost","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135856950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-01DOI: 10.30686/1609-9192-2023-3-72-76
D.M. Dubinkin, A.V. Yalyshev, Sh.Ya. Ismailova
The article presents the trends in the development of the dump body of mining dump trucks, identified during patent research for the project entitled “Development and creation of an unmanned shuttle-type mine truck with a payload of 220 tons”. The analysis of patents was carried out on the dynamics of patenting, its geography and patent holders. The depth of the patent search was 25 years. Based on the results of analyzing the identified patents, a forecast was made on the development of technical solutions for the dump body of mining dump trucks. It was found that: the dump body designs have been actively patented since 2013; the USA is the leader among the patent holders; the main trend in the development of the mining dump truck designs is caused by the need to cut down the specific metal content, as well as to reduce wear and sticking; since 2014, there has been a stable interest in patenting linings; 51% of the total patent base obtained belongs to 5 major global companies that manufacture dump trucks and 3 enterprises that produce equipment for mining machines. The identified technical solutions will allow evaluating the existing layout and design solutions, and developing new solutions by modeling in the discrete-body dynamics and the solid-body dynamics environments to calculate the stress-and-strain state of dump body for mining dump trucks.
{"title":"Trends in the development of unmanned mining dump trucks","authors":"D.M. Dubinkin, A.V. Yalyshev, Sh.Ya. Ismailova","doi":"10.30686/1609-9192-2023-3-72-76","DOIUrl":"https://doi.org/10.30686/1609-9192-2023-3-72-76","url":null,"abstract":"The article presents the trends in the development of the dump body of mining dump trucks, identified during patent research for the project entitled “Development and creation of an unmanned shuttle-type mine truck with a payload of 220 tons”. The analysis of patents was carried out on the dynamics of patenting, its geography and patent holders. The depth of the patent search was 25 years. Based on the results of analyzing the identified patents, a forecast was made on the development of technical solutions for the dump body of mining dump trucks. It was found that: the dump body designs have been actively patented since 2013; the USA is the leader among the patent holders; the main trend in the development of the mining dump truck designs is caused by the need to cut down the specific metal content, as well as to reduce wear and sticking; since 2014, there has been a stable interest in patenting linings; 51% of the total patent base obtained belongs to 5 major global companies that manufacture dump trucks and 3 enterprises that produce equipment for mining machines. The identified technical solutions will allow evaluating the existing layout and design solutions, and developing new solutions by modeling in the discrete-body dynamics and the solid-body dynamics environments to calculate the stress-and-strain state of dump body for mining dump trucks.","PeriodicalId":36119,"journal":{"name":"Gornaya Promyshlennost","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135857233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-01DOI: 10.30686/1609-9192-2023-3-88-91
Sh.Ch. Soyan, X.B. Badarchi, A.Ch. Kylgyday
The paper describes composition, quality and properties of coals from the Ulug-Khem basin, the most important fuel and energy resource of the Tyva Republic, which includes the Erbek, the Kaa-Khem, the Mezhegeysk and the Elegest deposits. The unified schematic map of the Jurassic deposits of Tuva that was adopted by the Interdepartmental Stratigraphic Commission is discussed. The Jurassic deposits are identified, which consist of four series, i.e. the Elegest, the Erbek, the Saldam, and the Bomsk formations. The Ulug formation, which contains 70% of the Ulug-Khem Basin's reserves, is described in detail. Its thickness varies from 0.3 to 19.6 m. The Ulug formation consists of siltstones, carbonaceous siltstones and sometimes sandstones. The thickness of soil layers varies from 0.10 to 0.6 m
{"title":"Tuvinian Institute for Exploration of Natural Resources of Siberian Branch of RAS, Kyzyl, Russian Federation","authors":"Sh.Ch. Soyan, X.B. Badarchi, A.Ch. Kylgyday","doi":"10.30686/1609-9192-2023-3-88-91","DOIUrl":"https://doi.org/10.30686/1609-9192-2023-3-88-91","url":null,"abstract":"The paper describes composition, quality and properties of coals from the Ulug-Khem basin, the most important fuel and energy resource of the Tyva Republic, which includes the Erbek, the Kaa-Khem, the Mezhegeysk and the Elegest deposits. The unified schematic map of the Jurassic deposits of Tuva that was adopted by the Interdepartmental Stratigraphic Commission is discussed. The Jurassic deposits are identified, which consist of four series, i.e. the Elegest, the Erbek, the Saldam, and the Bomsk formations. The Ulug formation, which contains 70% of the Ulug-Khem Basin's reserves, is described in detail. Its thickness varies from 0.3 to 19.6 m. The Ulug formation consists of siltstones, carbonaceous siltstones and sometimes sandstones. The thickness of soil layers varies from 0.10 to 0.6 m","PeriodicalId":36119,"journal":{"name":"Gornaya Promyshlennost","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135856960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-01DOI: 10.30686/1609-9192-2023-3-102-107
V.S. Velikanov, I.A. Grishin, O.A. Lukashuk, V.V. Davydova, A.D. Lukashuk
The efficiency of mineral processing is determined by the correct selection strategy for equipment and technology in the production process. In the present-day context, when it becomes necessary to increase the production capacity of existing mining and processing plants, enhancing the production capacity cannot be considered in isolation from the potential performance of the specific process equipment. When addressing the challenges associated with improving the efficiency of mining and processing equipment, special attention needs to be paid to streamlining its interaction within a unified process flowchart. It is generally known, that the bin storages at mining and processing facilities are intended to receive rock mass and secure batching and uniform supply of loose and lumpy materials from the bin to the downstream technological equipment. The bin storage parameters have to be defined with account of the properties of the materials to be used. The aim of this study is to develop an optimal design of the bin-and-feeder system that would ensure the material path close to the brachistochrone curve. Based on the presented analytical dependences, the main characteristics of releasing the mineral raw material from the bin-and-feeder systems have been established for the conditions of mining and processing plants. The received data can be used in further research to provide a mathematical model of material flow, as well as in the finding an optimal design of the bin. A complex approach that included a system scientific analysis and generalization of previously published studies was used in addressing the tasks set. An approach is suggested to develop a promising design of the bin-and-feeder system to deliver the mineral raw materials based on using the guides that would ensure the material flow as close to the brachistochrone curve as possible. This approach can be implemented in the bin-and-feeder systems for ore processing plants in order to reduce the energy consumption for the transportation and feeding of the mineral raw materials.
{"title":"Promising technical solutions to improve the efficiency of releasing mineral materials from bin storages","authors":"V.S. Velikanov, I.A. Grishin, O.A. Lukashuk, V.V. Davydova, A.D. Lukashuk","doi":"10.30686/1609-9192-2023-3-102-107","DOIUrl":"https://doi.org/10.30686/1609-9192-2023-3-102-107","url":null,"abstract":"The efficiency of mineral processing is determined by the correct selection strategy for equipment and technology in the production process. In the present-day context, when it becomes necessary to increase the production capacity of existing mining and processing plants, enhancing the production capacity cannot be considered in isolation from the potential performance of the specific process equipment. When addressing the challenges associated with improving the efficiency of mining and processing equipment, special attention needs to be paid to streamlining its interaction within a unified process flowchart. It is generally known, that the bin storages at mining and processing facilities are intended to receive rock mass and secure batching and uniform supply of loose and lumpy materials from the bin to the downstream technological equipment. The bin storage parameters have to be defined with account of the properties of the materials to be used. The aim of this study is to develop an optimal design of the bin-and-feeder system that would ensure the material path close to the brachistochrone curve. Based on the presented analytical dependences, the main characteristics of releasing the mineral raw material from the bin-and-feeder systems have been established for the conditions of mining and processing plants. The received data can be used in further research to provide a mathematical model of material flow, as well as in the finding an optimal design of the bin. A complex approach that included a system scientific analysis and generalization of previously published studies was used in addressing the tasks set. An approach is suggested to develop a promising design of the bin-and-feeder system to deliver the mineral raw materials based on using the guides that would ensure the material flow as close to the brachistochrone curve as possible. This approach can be implemented in the bin-and-feeder systems for ore processing plants in order to reduce the energy consumption for the transportation and feeding of the mineral raw materials.","PeriodicalId":36119,"journal":{"name":"Gornaya Promyshlennost","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135857235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-15DOI: 10.30686/1609-9192-2022-6-137-144
D. M. Dubinkin, A. V. Yalyshev
The article considers design schemes for determining static loads on the body sides of a mining dump truck. Methods for determining the static loads are described. Calculations of the pressure on the retaining wall using an analytical method were carried out. Simulation modeling of the body side loading with the method of discrete elements using the Rocky DEM software was performed. The parameters for discrete elements (with coal as the bulk material) are given. The calculated values and the previously obtained values of physical tests and studies are analyzed. Graphs and dependences of the influence of the body side height on the pressure on the retaining wall are obtained. Recommendations are given for determining the active pressure on the body side of a mining dump truck.
{"title":"Determination of static loads on the body sides of a mining dump truck","authors":"D. M. Dubinkin, A. V. Yalyshev","doi":"10.30686/1609-9192-2022-6-137-144","DOIUrl":"https://doi.org/10.30686/1609-9192-2022-6-137-144","url":null,"abstract":"The article considers design schemes for determining static loads on the body sides of a mining dump truck. Methods for determining the static loads are described. Calculations of the pressure on the retaining wall using an analytical method were carried out. Simulation modeling of the body side loading with the method of discrete elements using the Rocky DEM software was performed. The parameters for discrete elements (with coal as the bulk material) are given. The calculated values and the previously obtained values of physical tests and studies are analyzed. Graphs and dependences of the influence of the body side height on the pressure on the retaining wall are obtained. Recommendations are given for determining the active pressure on the body side of a mining dump truck.","PeriodicalId":36119,"journal":{"name":"Gornaya Promyshlennost","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48108013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-15DOI: 10.30686/1609-9192-2022-6-36-44
A.M. Lipanov, V.B. Artemiev, S.A. Petrushin, V.N. Kosterenko, A.V. Mutygullin, S.I. Kontsevoy, M.A. Lifer, A.S. Kontsevoy, M.L. Kim
The article is a continuation of the research described in the Russian Mining Industry Journal, Issue 5 (https://doi.org/10.30686/1609-9192-2022-5-00-00). This paper presents the Pathfinder Module of the unmanned self-propelled vehicle, which was developed within the framework of the Chameleon Project. Combination of this module with the Mule Basic Module makes it possible to create an unmanned a reconnaissance unmanned self-propelled vehicle. The Pathfinder Module is designed for terrain monitoring. This module is equipped with systems to create a mathematical model of the natural environment, which enables its movement if there is no communication with the operator. The module is equipped with a video-recording complex with the recording time of at least 4 hours, a binocular telescope with at least 18x zoom, a night vision device, a thermal imager with the angular resolution not exceeding 3° (the thermal target detection range of at least 1 000 m) and directional acoustic microphones. The article describes application scenarios of the Pathfinder Module, e.g. monitoring, reconnaissance, rescue and firefighting missions in a mine. The authors believe that serial production of the Chameleon range should begin as soon as possible as part of the import substitution program with the potential to export these products not only to the developing countries, but also to the countries with a high level of technological development.
{"title":"A concept of an unmanned self-propelled vehicle for operation in coal mines. Part 2","authors":"A.M. Lipanov, V.B. Artemiev, S.A. Petrushin, V.N. Kosterenko, A.V. Mutygullin, S.I. Kontsevoy, M.A. Lifer, A.S. Kontsevoy, M.L. Kim","doi":"10.30686/1609-9192-2022-6-36-44","DOIUrl":"https://doi.org/10.30686/1609-9192-2022-6-36-44","url":null,"abstract":"The article is a continuation of the research described in the Russian Mining Industry Journal, Issue 5 (https://doi.org/10.30686/1609-9192-2022-5-00-00). This paper presents the Pathfinder Module of the unmanned self-propelled vehicle, which was developed within the framework of the Chameleon Project. Combination of this module with the Mule Basic Module makes it possible to create an unmanned a reconnaissance unmanned self-propelled vehicle. The Pathfinder Module is designed for terrain monitoring. This module is equipped with systems to create a mathematical model of the natural environment, which enables its movement if there is no communication with the operator. The module is equipped with a video-recording complex with the recording time of at least 4 hours, a binocular telescope with at least 18x zoom, a night vision device, a thermal imager with the angular resolution not exceeding 3° (the thermal target detection range of at least 1 000 m) and directional acoustic microphones. The article describes application scenarios of the Pathfinder Module, e.g. monitoring, reconnaissance, rescue and firefighting missions in a mine. The authors believe that serial production of the Chameleon range should begin as soon as possible as part of the import substitution program with the potential to export these products not only to the developing countries, but also to the countries with a high level of technological development.","PeriodicalId":36119,"journal":{"name":"Gornaya Promyshlennost","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135743697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-15DOI: 10.30686/1609-9192-2022-6-75-82
A. Kozyrev, N. Kuznetcov, A. N. Shokov
he paper presents the results of uniaxial and triaxial compression tests of hard rock samples from the Zhdanovskoe deposit. Two criteria were used to assess the tendency of rocks to fail in dynamic mode (rockburst hazard). In the first case, the A.N. Stavrogin's criterion was used, which requires testing of specimens using “rigid” presses. In the second case, the criterion developed at the Mining Institute of the Kola Scientific Center of the Russian Academy of Sciences was applied to estimate the rockburst hazard of rocks based on the test results of samples using the standard presses. It is shown that the studied rocks of the Zhdanovskoe deposit are prone to failure in dynamic mode according to the two criteria considered. It was found that with the transition from uniaxial to triaxial compression conditions at the lateral pressures up to 40 MPa, the tendency of rocks to dynamic failure is maintained.
{"title":"Rockburst hazard assessment of hard rocks in the Zhdanovskoe deposit (Kola Peninsula)","authors":"A. Kozyrev, N. Kuznetcov, A. N. Shokov","doi":"10.30686/1609-9192-2022-6-75-82","DOIUrl":"https://doi.org/10.30686/1609-9192-2022-6-75-82","url":null,"abstract":"he paper presents the results of uniaxial and triaxial compression tests of hard rock samples from the Zhdanovskoe deposit. Two criteria were used to assess the tendency of rocks to fail in dynamic mode (rockburst hazard). In the first case, the A.N. Stavrogin's criterion was used, which requires testing of specimens using “rigid” presses. In the second case, the criterion developed at the Mining Institute of the Kola Scientific Center of the Russian Academy of Sciences was applied to estimate the rockburst hazard of rocks based on the test results of samples using the standard presses. It is shown that the studied rocks of the Zhdanovskoe deposit are prone to failure in dynamic mode according to the two criteria considered. It was found that with the transition from uniaxial to triaxial compression conditions at the lateral pressures up to 40 MPa, the tendency of rocks to dynamic failure is maintained.","PeriodicalId":36119,"journal":{"name":"Gornaya Promyshlennost","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46089273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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