Corrosion wear of the rock bolt elements with loss of their bearing capacity is sometimes observed in operation of the rock bolt support. Studies carried out in the mine workings secured with resin grouted rebar bolts allowed us to determine the patterns of corrosion wear of the rock bolt elements and measures to prevent it. Development of the rock bolt element corrosion is observed when they are moistened. The probability of free water content in the roof rocks increases with the growth of rock fracturing. The rate of the corrosion process increases with a decrease in the hydrogen index of water. Analysis of possible ways to prevent rock bolt support failures caused by the corrosion wear revealed that the most economical of them is the application of anti-corrosion coatings on the rock bolt support elements. Technical requirements were developed for the means of anti-corrosion protection of the metal rock bolt supports, they were selected among the anti-corrosion means available in the market of the Russian Federation, and their mine tests were carried out as the anti-corrosion coatings of the rock bolts in the most aggressive mine environment. According to the results of the mine tests, one anti-corrosion medium was identified that successfully passed the tests. The anti-corrosion coating created with this medium did not fail, corrosion failure of the rock bolt support elements was not observed. According to the test results, it was concluded that the anti-corrosion coating can prevent the failure of the rock bolt support operation. The field of application for stainless rock bolts is mine workings with long service life of the rock bolt support when the roof rocks are saturated water which pH < 7. The economic effect of using the rock bolts with anti-corrosion coating would amount to 6.6 million rubles/km. On average, only 4.2% of the rock bolts supplied to mines should have an anti-corrosion coating. It is possible to predict the need for the use of stainless rock bolts before driving the mine working, which will allow determining the necessary volume of their purchase in advance.
{"title":"The need for and scope of application of stainless steel rock bolts","authors":"B.B. Lugancev, A.I. Chavkin, Ju.V. Turuk, E.Yu. Voronova, V.S. Isakov","doi":"10.30686/1609-9192-2024-1-94-98","DOIUrl":"https://doi.org/10.30686/1609-9192-2024-1-94-98","url":null,"abstract":"Corrosion wear of the rock bolt elements with loss of their bearing capacity is sometimes observed in operation of the rock bolt support. Studies carried out in the mine workings secured with resin grouted rebar bolts allowed us to determine the patterns of corrosion wear of the rock bolt elements and measures to prevent it. Development of the rock bolt element corrosion is observed when they are moistened. The probability of free water content in the roof rocks increases with the growth of rock fracturing. The rate of the corrosion process increases with a decrease in the hydrogen index of water. Analysis of possible ways to prevent rock bolt support failures caused by the corrosion wear revealed that the most economical of them is the application of anti-corrosion coatings on the rock bolt support elements. Technical requirements were developed for the means of anti-corrosion protection of the metal rock bolt supports, they were selected among the anti-corrosion means available in the market of the Russian Federation, and their mine tests were carried out as the anti-corrosion coatings of the rock bolts in the most aggressive mine environment. According to the results of the mine tests, one anti-corrosion medium was identified that successfully passed the tests. The anti-corrosion coating created with this medium did not fail, corrosion failure of the rock bolt support elements was not observed. According to the test results, it was concluded that the anti-corrosion coating can prevent the failure of the rock bolt support operation. The field of application for stainless rock bolts is mine workings with long service life of the rock bolt support when the roof rocks are saturated water which pH < 7. The economic effect of using the rock bolts with anti-corrosion coating would amount to 6.6 million rubles/km. On average, only 4.2% of the rock bolts supplied to mines should have an anti-corrosion coating. It is possible to predict the need for the use of stainless rock bolts before driving the mine working, which will allow determining the necessary volume of their purchase in advance.","PeriodicalId":506182,"journal":{"name":"Mining Industry Journal (Gornay Promishlennost)","volume":"23 37","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140240382","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 : 2024-03-15DOI: 10.30686/1609-9192-2024-1-105-110
A. Mazhitov, R.V. Kulsaitov, R.S. Kozitsina, S.A. Korneev
The paper presents the design of a combined mining system that ensures favourable mining conditions for the development of ore reserves in conditions of unstable host rocks. The technology provides targeted transformation of the rock mass structure through the use of various technological solutions, which contribute to increasing the productivity of stoping, creation of a enclosing layer with increased strength to enable application of the high-performance room-and-pillar mining system. This approach allows efficient extraction of reserves located within an unstable host rock mass. Application of the developed option of the combined room-and-pillar system results in improved mining conditions and enhanced efficiency of stoping. The idea that when each subsequent section of the deposit located in ever more challenging conditions and having ever lower ore grades is introduced into mining, it is necessary to carry out a targeted technogenic transformation of the rock mass, i.e. to create favourable mining, geological, engineering and geomechanical conditions of its operation, is an important scientific and practical task of mining technology
{"title":"Development of combined subsurface mining method with targeted change of the rock mass structure","authors":"A. Mazhitov, R.V. Kulsaitov, R.S. Kozitsina, S.A. Korneev","doi":"10.30686/1609-9192-2024-1-105-110","DOIUrl":"https://doi.org/10.30686/1609-9192-2024-1-105-110","url":null,"abstract":"The paper presents the design of a combined mining system that ensures favourable mining conditions for the development of ore reserves in conditions of unstable host rocks. The technology provides targeted transformation of the rock mass structure through the use of various technological solutions, which contribute to increasing the productivity of stoping, creation of a enclosing layer with increased strength to enable application of the high-performance room-and-pillar mining system. This approach allows efficient extraction of reserves located within an unstable host rock mass. Application of the developed option of the combined room-and-pillar system results in improved mining conditions and enhanced efficiency of stoping. The idea that when each subsequent section of the deposit located in ever more challenging conditions and having ever lower ore grades is introduced into mining, it is necessary to carry out a targeted technogenic transformation of the rock mass, i.e. to create favourable mining, geological, engineering and geomechanical conditions of its operation, is an important scientific and practical task of mining technology","PeriodicalId":506182,"journal":{"name":"Mining Industry Journal (Gornay Promishlennost)","volume":"117 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140237745","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 : 2024-03-15DOI: 10.30686/1609-9192-2024-1-132-137
S. A. Chupikova, T. Oydup
The Republic of Tyva has a significant natural resource potential. The mining complex has been identified as a priority area of the economy of this territory. Despite the existing development potential, the region faces a number of challenges that require an integrated approach to address them. Modern trends are based on the principles of sustainable development, balanced and rational use of natural resources, which are primarily built on the basis of comprehensive information on the region. Information can be combined, structured and analyzed using geographic information technologies. Research objective. A spatial analysis of the resource potential and cartographic assessment of the anthropogenic impact of the reclamation territories in the Republic of Tyva. Research results. An assessment of the current state of the reclamation areas in the Republic of Tyva was carried out using the geoinformation approach. An index analysis of the investment attractiveness and investment potential as well as the anthropogenic load of the reclamation areas in the Republic of Tyva was carried out. Conclusions. The use of the geoinformation approach when assessing the current development state of the reclamation areas in the Republic of Tyva offers a number of advantages. First, it allows getting a clear picture of the current situation, identify the problem areas and develop effective strategies for further development of the territory. Second, combining data from various sources into a single GIS helps to make informed decisions and optimize the use of resources in the reclamation areas.
{"title":"Challenges in development of reclamation areas in the Republic of Tyva (geoinformation aspect)","authors":"S. A. Chupikova, T. Oydup","doi":"10.30686/1609-9192-2024-1-132-137","DOIUrl":"https://doi.org/10.30686/1609-9192-2024-1-132-137","url":null,"abstract":"The Republic of Tyva has a significant natural resource potential. The mining complex has been identified as a priority area of the economy of this territory. Despite the existing development potential, the region faces a number of challenges that require an integrated approach to address them. Modern trends are based on the principles of sustainable development, balanced and rational use of natural resources, which are primarily built on the basis of comprehensive information on the region. Information can be combined, structured and analyzed using geographic information technologies. Research objective. A spatial analysis of the resource potential and cartographic assessment of the anthropogenic impact of the reclamation territories in the Republic of Tyva. Research results. An assessment of the current state of the reclamation areas in the Republic of Tyva was carried out using the geoinformation approach. An index analysis of the investment attractiveness and investment potential as well as the anthropogenic load of the reclamation areas in the Republic of Tyva was carried out. Conclusions. The use of the geoinformation approach when assessing the current development state of the reclamation areas in the Republic of Tyva offers a number of advantages. First, it allows getting a clear picture of the current situation, identify the problem areas and develop effective strategies for further development of the territory. Second, combining data from various sources into a single GIS helps to make informed decisions and optimize the use of resources in the reclamation areas.","PeriodicalId":506182,"journal":{"name":"Mining Industry Journal (Gornay Promishlennost)","volume":"119 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140238088","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 : 2024-03-15DOI: 10.30686/1609-9192-2024-1-29-32
Mikhail Y. Bamborin
The use of high-tech polymer composite materials in construction makes it possible to carry out work under the constraints of transport infrastructure, limited space at a construction site, or in difficult operating conditions. The paper presents the results of studies of the technological characteristics of a pipe-and-pile curtain element made of carbon fiber and fiberglass, a self-drilling anchor made of fiberglass and steel used in modern construction
{"title":"Study of technological characteristics of a pipe curtain element and self-drilling anchors from poly-dimension composite materials","authors":"Mikhail Y. Bamborin","doi":"10.30686/1609-9192-2024-1-29-32","DOIUrl":"https://doi.org/10.30686/1609-9192-2024-1-29-32","url":null,"abstract":"The use of high-tech polymer composite materials in construction makes it possible to carry out work under the constraints of transport infrastructure, limited space at a construction site, or in difficult operating conditions. The paper presents the results of studies of the technological characteristics of a pipe-and-pile curtain element made of carbon fiber and fiberglass, a self-drilling anchor made of fiberglass and steel used in modern construction","PeriodicalId":506182,"journal":{"name":"Mining Industry Journal (Gornay Promishlennost)","volume":"54 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140238373","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 : 2024-03-15DOI: 10.30686/1609-9192-2024-1-71-76
E. Botyan, S.A. Lavrenko, A.E. Pushkarev
Suspension of mining dump trucks currently accounts for the largest share in the total number of sudden failures. In this regard, determination and further clarification of the rational replacement age and the mean time to repair of elements of this particular unit of mining dump trucks is one of the extremely important tasks that are faced by both their manufacturers and the maintenance teams of mining and processing plants. Currently existing methods are based on two main approaches, i.e. accumulation and analysis of the failure statistics for the same type of operations and assessment of the remaining lifetime. However none of them takes into account the influence of the mining conditions in which the equipment operates, and these conditions can also change significantly during its operation. To solve the presented problem, it is proposed to specify the existing methodology for determining the rational mean time to repair by establishing a comprehensive optimization criterion, which in addition to the mean time between failures shall include various types of economic costs and a coefficient reflecting the relationship between the influence of mining operating conditions and the mean time between failures. The result of clarifying the mean time to repair of the dump truck suspension elements is a decrease in the average recovery time of this unit, which leads to an increase in the maintainability of the entire machine.
{"title":"Methodology for refined calculation of mean time to repair of mining dump truck suspension elements with account of mining and technical conditions of their operation","authors":"E. Botyan, S.A. Lavrenko, A.E. Pushkarev","doi":"10.30686/1609-9192-2024-1-71-76","DOIUrl":"https://doi.org/10.30686/1609-9192-2024-1-71-76","url":null,"abstract":"Suspension of mining dump trucks currently accounts for the largest share in the total number of sudden failures. In this regard, determination and further clarification of the rational replacement age and the mean time to repair of elements of this particular unit of mining dump trucks is one of the extremely important tasks that are faced by both their manufacturers and the maintenance teams of mining and processing plants. Currently existing methods are based on two main approaches, i.e. accumulation and analysis of the failure statistics for the same type of operations and assessment of the remaining lifetime. However none of them takes into account the influence of the mining conditions in which the equipment operates, and these conditions can also change significantly during its operation. To solve the presented problem, it is proposed to specify the existing methodology for determining the rational mean time to repair by establishing a comprehensive optimization criterion, which in addition to the mean time between failures shall include various types of economic costs and a coefficient reflecting the relationship between the influence of mining operating conditions and the mean time between failures. The result of clarifying the mean time to repair of the dump truck suspension elements is a decrease in the average recovery time of this unit, which leads to an increase in the maintainability of the entire machine.","PeriodicalId":506182,"journal":{"name":"Mining Industry Journal (Gornay Promishlennost)","volume":"6 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140239856","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 : 2024-03-15DOI: 10.30686/1609-9192-2024-1-78-85
M. Rylnikova, A.V. Vlasov, D. Radchenko
The main effect in transition of deep open pits to the In Pit Crushing and Conveying (IPCC) system of rock mass transportation is achieved through cutting the costs of rock mass hauling. Independence of the transportation system throughput from the haulage distance makes it possible to increase the boundary stripping ratio and extend the service life of the open pit. Transition from the cyclic to the In Pit Crushing and Conveying (IPCC) system of rock mass hauling still leaves insufficiently studied the issues related to assessment of the minimum commercial and cut-off grades of valuable components and contaminants in ores, the permissible thickness of the ore bodies when justifying the feasibility study of conditions, as well as management of the rock mass flow quality, optimization of the rock mass reduction ratio at the stage of its preparation for conveyor hauling from the open pit to the ore stockpiles and, further, to the ore hoppers of the processing plants, and many other challenges. The paper systematizes the results of other research by the authors as well as other data and it shows that the placing the crushing equipment and the belt conveyors within the boundaries of the open pit offers additional opportunities to manage the quality of rock mass flows, i.e. the ore mass and the overburden due to variations in the logistic and hauling schemes of the open pit due to transition to the In Pit Crushing and Conveying (IPCC) system. The above approaches to implementation of the rock mass haulage system in open pits remove the boundaries between mining and processing of minerals, expand the possibilities of targeted formation of technogenic deposits, and potentially expand the range of marketable products of the mining company. In fact, the mining and processing facility is considered as a unified technological process of the complete production cycle carried out in a single technological environment. Implementation of the proposed technological schemes will require changes in the regulatory and legal framework.
{"title":"Changing the approach to designing mining engineering systems for surface mining based on enhanced principles of rock mass quality management","authors":"M. Rylnikova, A.V. Vlasov, D. Radchenko","doi":"10.30686/1609-9192-2024-1-78-85","DOIUrl":"https://doi.org/10.30686/1609-9192-2024-1-78-85","url":null,"abstract":"The main effect in transition of deep open pits to the In Pit Crushing and Conveying (IPCC) system of rock mass transportation is achieved through cutting the costs of rock mass hauling. Independence of the transportation system throughput from the haulage distance makes it possible to increase the boundary stripping ratio and extend the service life of the open pit. Transition from the cyclic to the In Pit Crushing and Conveying (IPCC) system of rock mass hauling still leaves insufficiently studied the issues related to assessment of the minimum commercial and cut-off grades of valuable components and contaminants in ores, the permissible thickness of the ore bodies when justifying the feasibility study of conditions, as well as management of the rock mass flow quality, optimization of the rock mass reduction ratio at the stage of its preparation for conveyor hauling from the open pit to the ore stockpiles and, further, to the ore hoppers of the processing plants, and many other challenges. The paper systematizes the results of other research by the authors as well as other data and it shows that the placing the crushing equipment and the belt conveyors within the boundaries of the open pit offers additional opportunities to manage the quality of rock mass flows, i.e. the ore mass and the overburden due to variations in the logistic and hauling schemes of the open pit due to transition to the In Pit Crushing and Conveying (IPCC) system. The above approaches to implementation of the rock mass haulage system in open pits remove the boundaries between mining and processing of minerals, expand the possibilities of targeted formation of technogenic deposits, and potentially expand the range of marketable products of the mining company. In fact, the mining and processing facility is considered as a unified technological process of the complete production cycle carried out in a single technological environment. Implementation of the proposed technological schemes will require changes in the regulatory and legal framework.","PeriodicalId":506182,"journal":{"name":"Mining Industry Journal (Gornay Promishlennost)","volume":"83 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140238276","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 : 2024-03-15DOI: 10.30686/1609-9192-2024-1-112-119
S.N. Rakhmatov, N. V. Korobovsky, T.Sh. Pazylov, K. Z. Kurmanaliev
Based on the study of empirical economic data obtained during operation of a large-scale gold ore deposit, a model was built to justify the hypothesis about profit rationing, the formation and division of the differential rent I and II. The model identifies the increase in the equity premium as the sum of profit and rent II for investment capital and rent I for the owner of the resources. Boundaries of the capital movement are highlighted for the terms of service agreements with and without risk. The obtained values are attractive for the investment and/or operating side, and the resource owner during the field development. The approach based on profit rationing, assessment and division of the mining rent by types: (1) will help to introduce civil law relations in subsoil use based on service contracts with or without risk; (2) takes into account the value of reserves and resources in their mining and dividing them into ownerships, resources and investment capital; (3) introduces a new approach to attractiveness of deposit mining, both in attracting investment capital and for the operating companies based on a risk-free contract with retention of the ownership of resources with the country of the resource owner; (4) enhances the investment and production attractiveness of deposit mining providing incentives to introduce innovation technologies and improve the efficiency. It is possible to create an economic method for managing and regulating the mining industry of the Kyrgyz Republic based on the proposed approach.
在对一个大型金矿床运营期间获得的经验经济数据进行研究的基础上，建立了一个模型来证明关于利润配给、差额租金 I 和 II 的形成和划分的假设。该模型将股本溢价的增加确定为投资资本的利润和租金 II 的总和，以及资源所有者的租金 I 的总和。对于有风险和无风险的服务协议条款，资本流动的边界得到了强调。在油田开发过程中，所获得的价值对投资和/或运营方以及资源所有者都具有吸引力。基于利润配给、评估和按类型划分采矿租金的方法：(1)有助于在有风险或无风险的服务合同的基础上，在底土使用中引入民法关系；(2)考虑到储量和资源在开采中的价值，并将其划分为所有权、资源和投资资本；(3)引入一种新的矿床开采吸引力方法，既能吸引投资资本，又能在与资源所有者所在国签订的保留资源所有权的无风险合同的基础上，吸引运营公司；(4)增强矿床开采的投资和生产吸引力，激励引进创新技术和提高效率。根据所建议的方法，有可能为吉尔吉斯共和国采矿业的管理和调控制定一种经济方法。
{"title":"Assessment of profit rationing and boundaries of mining rent I and II as an economic method for regulating a mining project","authors":"S.N. Rakhmatov, N. V. Korobovsky, T.Sh. Pazylov, K. Z. Kurmanaliev","doi":"10.30686/1609-9192-2024-1-112-119","DOIUrl":"https://doi.org/10.30686/1609-9192-2024-1-112-119","url":null,"abstract":"Based on the study of empirical economic data obtained during operation of a large-scale gold ore deposit, a model was built to justify the hypothesis about profit rationing, the formation and division of the differential rent I and II. The model identifies the increase in the equity premium as the sum of profit and rent II for investment capital and rent I for the owner of the resources. Boundaries of the capital movement are highlighted for the terms of service agreements with and without risk. The obtained values are attractive for the investment and/or operating side, and the resource owner during the field development. The approach based on profit rationing, assessment and division of the mining rent by types: (1) will help to introduce civil law relations in subsoil use based on service contracts with or without risk; (2) takes into account the value of reserves and resources in their mining and dividing them into ownerships, resources and investment capital; (3) introduces a new approach to attractiveness of deposit mining, both in attracting investment capital and for the operating companies based on a risk-free contract with retention of the ownership of resources with the country of the resource owner; (4) enhances the investment and production attractiveness of deposit mining providing incentives to introduce innovation technologies and improve the efficiency. It is possible to create an economic method for managing and regulating the mining industry of the Kyrgyz Republic based on the proposed approach.","PeriodicalId":506182,"journal":{"name":"Mining Industry Journal (Gornay Promishlennost)","volume":"19 38","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140240432","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 : 2024-03-15DOI: 10.30686/1609-9192-2024-1-60-64
A. Zemskov, A.V. Nikolaev, D.D. Zhebelev
Intensification of potash salt mining, widespread use of high-performance continuous miners, involvement of gasbearing formations in mining are accompanied by release of natural poisonous gases into the atmosphere of mine workings, which explains the need to ensure safe working conditions for the miners. The article presents the researche results that helped to develop a methodology for predicting accumulation zones of one of the most hazardous poisonous gases, i.e. hydrogen sulfide. A correlation was established between the hydrogen sulfide concentration, presence of organic substances and the content of magnesium chloride in the rocks. The article describes methods to determine the accumulation areas of hazardous sulfurcontaining gases based on the trench sampling and laboratory test data, which makes it possible to take timely protective measures to ensure safety of the miners. The developed method is based on creation of the correlation fields for various geochemical attributes such as the NaCl, KCl, MgCl2 content and others. A close correlation between the content of organic carbon in the rocks and magnesium chloride indicates the degree of salt recrystallization, as evidenced by an increase in the hydrogen sulfide content. In addition, the article describes an express method to determine the gas content in rocks, which enables a quick and accurate assessment of hydrogen sulfide concentration directly in the mine workings, thus providing the possibility of prompt response to the hazards. Thus, the methodology proposed by the authors serves not only to identify the potentially hazardous areas, but also to prevent dangerous situations associated with the release of poisonous gases in potash mines. The research and practical approaches described in the article as well as the developed recommendations contribute to enhancing the efficiency of mine ventilation, which in turn leads to minimization of the risks to health and life of the miners.
{"title":"A method of predicting hydrogen sulfide accumulation zones in sylvinite layers of potash mines and rapid determination of rock gas content by hydrogen sulfide","authors":"A. Zemskov, A.V. Nikolaev, D.D. Zhebelev","doi":"10.30686/1609-9192-2024-1-60-64","DOIUrl":"https://doi.org/10.30686/1609-9192-2024-1-60-64","url":null,"abstract":"Intensification of potash salt mining, widespread use of high-performance continuous miners, involvement of gasbearing formations in mining are accompanied by release of natural poisonous gases into the atmosphere of mine workings, which explains the need to ensure safe working conditions for the miners. The article presents the researche results that helped to develop a methodology for predicting accumulation zones of one of the most hazardous poisonous gases, i.e. hydrogen sulfide. A correlation was established between the hydrogen sulfide concentration, presence of organic substances and the content of magnesium chloride in the rocks. The article describes methods to determine the accumulation areas of hazardous sulfurcontaining gases based on the trench sampling and laboratory test data, which makes it possible to take timely protective measures to ensure safety of the miners. The developed method is based on creation of the correlation fields for various geochemical attributes such as the NaCl, KCl, MgCl2 content and others. A close correlation between the content of organic carbon in the rocks and magnesium chloride indicates the degree of salt recrystallization, as evidenced by an increase in the hydrogen sulfide content. In addition, the article describes an express method to determine the gas content in rocks, which enables a quick and accurate assessment of hydrogen sulfide concentration directly in the mine workings, thus providing the possibility of prompt response to the hazards. Thus, the methodology proposed by the authors serves not only to identify the potentially hazardous areas, but also to prevent dangerous situations associated with the release of poisonous gases in potash mines. The research and practical approaches described in the article as well as the developed recommendations contribute to enhancing the efficiency of mine ventilation, which in turn leads to minimization of the risks to health and life of the miners.","PeriodicalId":506182,"journal":{"name":"Mining Industry Journal (Gornay Promishlennost)","volume":"5 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140241658","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 : 2024-03-15DOI: 10.30686/1609-9192-2024-1-52-58
Yu.V. Malakhov, V.A. Rakitin, D.A. Pashkov
Orientation towards foreign suppliers with their methods and recommendations for tire application on mining machines without taking into account the requirements and specific features of operating conditions in the Russian Federation has led to a lack of domestic regulatory approaches to their use. The article justifies the relevance of developing a standardized approach to selection of giant tires. The development was initiated by “ERT-GROUPP” LLC. Standardization tools are presented, through which the basis for ensuring the quality and efficiency of mine machinery operation will be determined. Provisions of the standardized approach to selection of giant tires for mining machines are developed. An example of tire selection for the Epiroc ST1030 LHD operated in conditions of the Sheregeshskaya mine, EVRAZ ZSMK JSC, is given according to the developed approach to tire selection. The main directions in the industry for application of the standard for the selection of pneumatic tires for underground self-propelled mining machines are given. In conclusion, it is noted that the development of a draft standard for selection of giant tires for mining machines corresponds to the key directions in development of standardization and technical policy to provide the mining industry with modern standardization tools. The use of the national standard entitled “Mining equipment. Self-propelled machines for underground mine workings. The order of selection of pneumatic tires” will contribute to reducing downtime of mining machines associated with the incorrect selection of giant tires depending on the type of machine and the operating conditions, which will reduce economic and material losses of underground mining enterprises.
{"title":"Development of a standardized approach to selection of pneumatic tires for self-propelled machines for underground mining operations","authors":"Yu.V. Malakhov, V.A. Rakitin, D.A. Pashkov","doi":"10.30686/1609-9192-2024-1-52-58","DOIUrl":"https://doi.org/10.30686/1609-9192-2024-1-52-58","url":null,"abstract":"Orientation towards foreign suppliers with their methods and recommendations for tire application on mining machines without taking into account the requirements and specific features of operating conditions in the Russian Federation has led to a lack of domestic regulatory approaches to their use. The article justifies the relevance of developing a standardized approach to selection of giant tires. The development was initiated by “ERT-GROUPP” LLC. Standardization tools are presented, through which the basis for ensuring the quality and efficiency of mine machinery operation will be determined. Provisions of the standardized approach to selection of giant tires for mining machines are developed. An example of tire selection for the Epiroc ST1030 LHD operated in conditions of the Sheregeshskaya mine, EVRAZ ZSMK JSC, is given according to the developed approach to tire selection. The main directions in the industry for application of the standard for the selection of pneumatic tires for underground self-propelled mining machines are given. In conclusion, it is noted that the development of a draft standard for selection of giant tires for mining machines corresponds to the key directions in development of standardization and technical policy to provide the mining industry with modern standardization tools. The use of the national standard entitled “Mining equipment. Self-propelled machines for underground mine workings. The order of selection of pneumatic tires” will contribute to reducing downtime of mining machines associated with the incorrect selection of giant tires depending on the type of machine and the operating conditions, which will reduce economic and material losses of underground mining enterprises.","PeriodicalId":506182,"journal":{"name":"Mining Industry Journal (Gornay Promishlennost)","volume":"7 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140239810","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 : 2024-03-15DOI: 10.30686/1609-9192-2024-1-120-125
N. Antoninova, A. Usmanov, A. Sobenin, Ya.A. Kuznetsova, A. A. Gorbunov
The amount of lands subject to contamination with heavy metal ions is increasing due to mining of minerals. Therefore, research on the use of various composite sorbents / ameliorants, which in combination with perennial plants can act as a biogeochemical barrier to the spread of heavy metal ions in the environment, is currently relevant. In the “soil–and-plant” system, use of the peat-and-diatomite ameliorant granulated on site in the direction of the man-made flow showed a high degree of survival of the awnless brome grass (Brōmus inērmis) compared with zero survival on the reference area. The dynamics of heavy metal accumulation in the plant biomass shows an increase in the content of copper and zinc, in comparison with the background values during the second year of research, while during the third year there is a decrease in the content of copper in the biomass from 235 to 40 mg / kg, with an increase in zinc content from 473 mg / kg to 510 mg / kg. The data obtained confirm the limits of metal fluctuations in the plant biomass established by previous researchers. At the peat-and-diatomite ameliorant sites, an increase in the concentration of Cu2+ and Zn2+ was also observed in comparison with the other survey locations, which indicates the possibility of using granular peat-and-diatomite ameliorant as a material to create a network of biogeochemical barriers perpendicular to the direction of the man-made flow.
{"title":"On the use of reclamation techniques for the formation of biogeochemical barriers","authors":"N. Antoninova, A. Usmanov, A. Sobenin, Ya.A. Kuznetsova, A. A. Gorbunov","doi":"10.30686/1609-9192-2024-1-120-125","DOIUrl":"https://doi.org/10.30686/1609-9192-2024-1-120-125","url":null,"abstract":"The amount of lands subject to contamination with heavy metal ions is increasing due to mining of minerals. Therefore, research on the use of various composite sorbents / ameliorants, which in combination with perennial plants can act as a biogeochemical barrier to the spread of heavy metal ions in the environment, is currently relevant. In the “soil–and-plant” system, use of the peat-and-diatomite ameliorant granulated on site in the direction of the man-made flow showed a high degree of survival of the awnless brome grass (Brōmus inērmis) compared with zero survival on the reference area. The dynamics of heavy metal accumulation in the plant biomass shows an increase in the content of copper and zinc, in comparison with the background values during the second year of research, while during the third year there is a decrease in the content of copper in the biomass from 235 to 40 mg / kg, with an increase in zinc content from 473 mg / kg to 510 mg / kg. The data obtained confirm the limits of metal fluctuations in the plant biomass established by previous researchers. At the peat-and-diatomite ameliorant sites, an increase in the concentration of Cu2+ and Zn2+ was also observed in comparison with the other survey locations, which indicates the possibility of using granular peat-and-diatomite ameliorant as a material to create a network of biogeochemical barriers perpendicular to the direction of the man-made flow.","PeriodicalId":506182,"journal":{"name":"Mining Industry Journal (Gornay Promishlennost)","volume":"13 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140241038","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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