JOURNAL of Donetsk mining institute最新文献

{"title":"INTEGRATED RISK ASSESSMENT IN COAL MINING","authors":"V. Golinko","doi":"10.31474/1999-981x-2022-1-32-39","DOIUrl":"https://doi.org/10.31474/1999-981x-2022-1-32-39","url":null,"abstract":"Purpose. To determine methodological approaches to the integrated assessment of accidents and hazards of coal mining processes, which allow taking into account the mining and geological conditions of coal mining at a particular mining enterprise. Methods. Analytical methods, methods of probability theory, statistical processing of accidents at coal mines of Ukraine and methods of economic and mathematical modelling are used in the work. Results. Methodological bases for integrated assessment of hazards and harmfulness of production taking into account mining and geological conditions of coal mining are developed. It is shown that ambiguity of existing solutions both in terms of theoretical and methodological approaches, and in their practical use in coal mining enterprises, can lead to inefficient use of funds in the implementation of measures to improve working conditions. It is shown that the occurrence of accidents and hazards caused by hazardous production factors is probabilistic, so the economic assessment of these phenomena should be unified and take into account the expected economic losses in accidents and hazards and the probabilistic nature of these phenomena. Scientific novelty. For the first time it was proposed to use the economic assessment of hazardous and harmful production factors typical of the process or production as an integral assessment of accident rate, measure of hazardousness and harmfulness of a technological process or production. Practical value. The ambiguity of existing solutions both in terms of theoretical and methodological approaches, and in their practical use in coal mining enterprises, can lead to inefficient use of funds in the implementation of measures to improve working conditions. Availability of an integrated assessment of hazardous and harmful phenomena of coal mining allows taking more reasonable decisions aimed at preserving and developing the potential of the coal industry, as well as selection and justification of decisions on design and construction of new energy facilities taking into account social and economic aspects","PeriodicalId":344647,"journal":{"name":"JOURNAL of Donetsk mining institute","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115139627","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}

{"title":"DETERMINATION OF STELL TRUSS TECHNICAL CONDITION WITH THE INDICATOR OF RELIABILITY INDEX β","authors":"S. Kolesnichenko, Buildings, I. Chernykh","doi":"10.31474/1999-981x-2019-1-107-115","DOIUrl":"https://doi.org/10.31474/1999-981x-2019-1-107-115","url":null,"abstract":"","PeriodicalId":344647,"journal":{"name":"JOURNAL of Donetsk mining institute","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125539553","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}

{"title":"THE INFLUENCE OF DEFORMATION PROPERTIES OF SECONDARY SUPPORT STRUCTURES OF MINE GATEROADS ON THEIR RESISTANCE ACCORDING TO THE LENGTH OF THE EXTRACTION PANEL","authors":"I. Liashok, S. Podkopaiev, Leonid L. Bachurin, H. Boichenko, O. Tkachuk","doi":"10.31474/1999-981x-2022-1-68-80","DOIUrl":"https://doi.org/10.31474/1999-981x-2022-1-68-80","url":null,"abstract":"Purpose. To increase the effectiveness of measures to reduce injuries and create safe working conditions for miners in a deep coal mine with steeply inclined coal seams, assess the impact of deformation properties stiffness of secondary support structures of mine gateroads on their stability in the coal-rock strata according to the length of the extraction panel. Methods. To achieve this purpose, the results of in-mine instrumental observations of the stability of haulage roadways under different supporting methods were analyzed, considering the deformation properties of secondary support structures and features of geomechanical processes in the surrounding coal-rock strata during unloading. Results. The conditions for maintaining the mine gateroads within the extraction panel during the methods of supporting practised at the mine were estimated by the magnitude of the convergence of the roof and floor strata on the contour of the haulage roadway and its derivatives. It is determined that in the zone of influence of coal extraction, in the process of deformation of coal pillars or vertical timber sets up to 16-22%, there is a loss of their stability, an increase in the load on the secondary support structure, the intensification of the increase in roof displacements over 0.08 m with a convergence rate of 4.5-5.6 mm/day. In the process of deformation of 4-point chock by 65%, the rate of convergence at the initial stage (30% deformation) increases to 5.1 mm/day, with an average increase in roof displacements to 0.05 m, and then gradually decreases over time, which favourably affects the stability of roof and floor strata and roadways. Reduction of the haulage roadway cross-section when it is supported by coal pillars or vertical timber sets on 45-50% is the result of the destruction of secondary support structures when the rate of convergence of the roof and floor strata along the extraction area is not limited. When supporting the haulage roadway with a 4-point chock reduction of the roadway cross-section by 30% is due to the compression of the secondary support structures, which helps to limit the growth of roof displacements and reduce the rate of convergence of the roof and floor strata behind the working face. Novelty. The estimation of the haulage roadways stability on the steeply inclined coal seams according to the length of the extraction panel is based on the use of regularities of deformation properties of secondary supporting structures of mine gateroads and geomechanical processes in the coal-rock strata when the change in the rate of convergence of the roof and floor strata on the contour of roadways is considered in the zone of influence of coal extraction works. Practical significance. To prevent the collapse of the roof and floor strata in the extraction area of the deep coal mines with steeply inclined coal seams, it is necessary to use yielding secondary support structures of mine gateroads.","PeriodicalId":344647,"journal":{"name":"JOURNAL of Donetsk mining institute","volume":"196 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131561866","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}

{"title":"APPLICATION OF ROOF BOLTING TECHNOLOGY FOR MINE WORKINGS IN GAS- AND WATER-BEARING ROCKS","authors":"O. Krukovskyi, V. Krukovska, Yu.O. Vynohradov","doi":"10.31474/1999-981x-2022-1-56-67","DOIUrl":"https://doi.org/10.31474/1999-981x-2022-1-56-67","url":null,"abstract":"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 changes in fluid pressure on stress state and decrease in the strength properties of rocks during soaking (in the case of water filtration) were taken into account at each time iteration. Results. A study of the influence of supporting mine workings on filtration permeability caused by its driving has been performed. It is shown that the use of roof bolting restrains the process of cracking in the area affected by mining. At the same time the sizes of the filtration area are considerably reduced, permeability in this area decreases. Roof bolting allows to reduce the average filtration permeability caused by the redistribution of the stress field during the driving of mine working by 15 times or more. The influence of bolts on the process of fluid filtration has been studied. It is established that filtration process is actively taking place around the mine workings with frame support. When using roof bolting, methane from undermined gas sources is not involved in the filtration process. On the walls of the mine working, methane filtration intensity from the coal seam is significantly reduced. Roof bolting reduces water inflows into the mine workings in water-resistant rocks by 2.5 times, in non-water-resistant rocks by 3.4 times. Scientific novelty. For the first time the study of the influence of supporting type in mine workings on formation of the filtration area in the host rocks and the course of filtration processes has been performed. A method of reducing water inflows into mine workings with the use of combined frames and bolts supporting has been developed. It is shown that roof bolting can be used as a technological way to reduce gas and water inflows into the mine workings. Practical significance. Application of the proposed method leads to a significant economic effect by reducing the cost of water pumping and repair work to restore mine workings after emergency water inflows.","PeriodicalId":344647,"journal":{"name":"JOURNAL of Donetsk mining institute","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132763029","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}

{"title":"FEATURES OF THE BEHAVIOR OF A SHOCK WAVE IN A CHANNEL WITH WALLS OF DIFFERENT STIFFNESS","authors":"A. Vasilchenko, Olexandr Danilin, T. Lutsenko, Elena Nadyon, A. Ruban","doi":"10.31474/1999-981x-2021-2-96-103","DOIUrl":"https://doi.org/10.31474/1999-981x-2021-2-96-103","url":null,"abstract":"Purpose of work. Determination of the terms of weakening the destructive action of a shock wave during its propagation in the channels of mining workings or long communication premises of industrial buildings in an emergency explosion. Methods. Using an analytical research method based on the main provisions of theory of combustion and explosion. Construction and analysis of the physical model of formation and distribution of a shock wave in the channel. Results. The problem of weakening of a shock wave during its propagation in long channels of mining workings or communication passageways of industrial buildings with a potentially explosive atmosphere is considered. It is shown that when an explosion in the channel is formed by a head shock wave with a flat front, dynamic pressure which significantly exceeds the pressure on the fronts of falling and reflected shock waves that form the head shock wave. A physical model of formation and distribution of a shock wave in a channel with walls of different rigidity is proposed. It is shown that if one of the walls of the channel is mobile or easily deformed, it leads to a violation of the geometry of the plane front of the head shock wave and its weakening. Moreover, the reconstruction of the plane front of the head shock wave can occur at a distance of not less than 6-8 channel width. On the basis of this observation, the need to arrange explosion-relief valves in channels of mining workings or communication premises of industrial buildings with a potentially explosive atmosphere is substantiated. Novelty. A physical model of the formation and propagation of a shock wave in a channel with walls of different stiffness is proposed. The necessity of equipping explosion-relief valves in the long communication channels of mine workings and buildings with increased explosion hazard to attenuate the shock wave is substantiated. Practical significance. Arrangement of expanders with explosion-relief valves with dimensions comparable to the channel diameter and intervals between them up to 8 channel diameters in long communication channels of mine workings and buildings with increased explosion hazard will lead to weakening of the shock wave and reduction of its destructive effect.","PeriodicalId":344647,"journal":{"name":"JOURNAL of Donetsk mining institute","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131489448","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}

{"title":"PRINCIPLES FOR DEVELOPING LIQUID MIXTURES FOR SCREENING WIDE FREQUENCY RANGE ELECTROMAGNETIC FIELDS","authors":"O. Panova, Yana Biruk","doi":"10.31474/1999-981x-2022-1-108-113","DOIUrl":"https://doi.org/10.31474/1999-981x-2022-1-108-113","url":null,"abstract":"Purpose: A liquid material based on commercially available paints and fine iron ore concentrate has been created. With a filler content of 60-70 %, the coefficients of shielding of the electric field of industrial frequency is 2,6-9,1; magnetic field of industrial frequency is 4,5-6,2; electromagnetic field of ultrahigh frequency is 4,4-8,5. At the same time, the reflection coefficients of electromagnetic waves are at least twice lower than those of metal screens. Method: A calculation tool is provided for converting the weight content into the volume content of the shielding filler. This makes it possible to apply the Lorentz and Maxwell-Garnett ratios to predict the electrical and magnetic properties of metal dielectrics. To determine the reliability of adhesion of the obtained mixtures with the application surfaces, the study of the chemical and colloidal properties of the mixtures for application on gypsum board has been performed. Scientific novelty: It is established that the reduction of surface tension, surface wetting angle, work of adhesion, cohesion and wetting forces, spreading coefficient are within the limits that ensure the reliability and durability of adhesion of the material to surfaces. Results: It is shown that the reduction of the protective properties on the water-dispersion carrier is due to the oxidation of the filler. Liquid compositions are made on the basis of a number of paints and varnishes and iron ore concentrates, which can cover large surfaces in various shapes and configurations. Practical significance: In order to use the obtained mixtures in the fields of ensuring the electromagnetic compatibility of electrical and electronic equipment, it is necessary to increase the protective properties. This is possible by increasing the concentration of the shielding filler or increasing the specific conductivity of materials in the solid state by adding to the liquid mixture of fine material with high conductivity.","PeriodicalId":344647,"journal":{"name":"JOURNAL of Donetsk mining institute","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134256707","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}

{"title":"SUBSTANTIATION OF THE FEASIBILITY OF CHOOSING A SUSPENSION BASED ON THE SODIUM GROUP IN THE TREATMENT OF COAL MINING WASTE DUMPS","authors":"I. Chobotko","doi":"10.31474/1999-981x-2023-1-118-125","DOIUrl":"https://doi.org/10.31474/1999-981x-2023-1-118-125","url":null,"abstract":"Purpose. To study the effectiveness of sodium group based suspensions: sodium hydroxide, sodium hydrocarbonate and sodium carbonate for neutralisation of spontaneous combustion processes of waste rock during the operation and formation of coal mining waste. To establish the dependence of the influence of suspensions on the chemical elements of the waste stockpile, taking into account external environmental factors.\u0000\u0000Methods. For solving the set tasks, methods of comparative analysis of theoretical and laboratory studies of the impact of suspensions on the processes of the mechanism of redox reactions of spontaneous combustion of waste heaps obtained in the process of processing minerals of coal mines were used. The application of rational method of processing the results of the experimental study of the interaction of waste mass with sodium solutions using the correlation analysis of Student’s t-criterion is described.\u0000\u0000Results. The spontaneous ignition mechanisms of the stockpile have been investigated, based on the interaction of the active chemical elements in the stockpile: pyrite, sulphur and iron oxide with the environment. The selection and optimization of the parameters of a sodium group based slurry when treating the stockpile will solve the problem of spontaneous combustion in the treatment of the stockpile by crystallizing the active chemical elements and filling in its porous structure.\u0000\u0000Scientific novelty. The dependence of the influence of the environment on the processes of thermal oxidation of waste rock mass is established. The expediency of application of methods and techniques for elimination of self-ignition foci, as the main factors of environmental pollution, is substantiated. A new expedient method and method has been proposed, which will allow estimating not only the economic effect but also the ecological one, which will contribute to improving the ecological and economic situation of the mining regions where mining wastes are located.\u0000\u0000Practical implication. It consists in the development of recommendations for methods and techniques to eliminate spontaneous combustion of mining wastes. The methodology for determining the required quantitative and qualitative composition of inert substances (suspensions) containing sodium group to eliminate sulphurous zones of exogenous combustion processes of waste mass is proposed. Recommendations on the use of these means and methods have been developed.","PeriodicalId":344647,"journal":{"name":"JOURNAL of Donetsk mining institute","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129673299","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}

{"title":"STUDY OF DEFORMATION PROPERTIES OF PROTECTIVE STRUCTURES OF PREPARATORY MINING WORKS","authors":"M. Hryhorets, O. Tkachuk, Serhii Pahomov, V. Vasilenko, S. Podkopaiev","doi":"10.31474/1999-981x-2023-1-29-40","DOIUrl":"https://doi.org/10.31474/1999-981x-2023-1-29-40","url":null,"abstract":"Purpose. To study the stability of the security structures of the preparatory mine roadways of steep seams while unloading the coal-rock massif to prevent the collapse of side rocks in the excavation areas of the coal mine and create safe working conditions for miners.\u0000\u0000Method. In order to achieve the aim of the research, the study of the stability of security structures was carried out at the laboratory of mountain pressure by using experimental samples in the form of whole coal and structures consisted of crushed rock, which were subjected to uniaxial compression.\u0000\u0000Results. Under the conditions of uniaxial compression of whole coal or constructions consisted of crushed rock, with the ratio of length to width a/b= (1-2) and an increase in the cross-sectional area S (m2) of the experimental samples, a relative change of their volume δV was observed. For whole coal, the steady state is ensured by the relative volume change δV ≤ 0,1. Beyond the set value of δV, the whole coals lose their stability and collapse, which results in the collapse of the side rocks. For the crushed rock structures, with an increase in the cross-sectional area of the compressible specimens, the relative volume change decreases from δV = 0,2 to δV = 0,35. At the same time, the crushed rock is compacted in the whole volume of the used material, the bearing capacity of protective structures is increased, which enables limiting the movement of lateral rocks and ensures their integrity.\u0000\u0000Scientific novelty Within the limits of the deformation resource of protective structures consisting of crushed rock of different granulometric composition, with their uniaxial compression, a type of functional dependence was established, which enables us to estimate the relative change in the volume of flexible supports from stiffness, which is necessary for assessing their bearing capacity.\u0000\u0000Practical significance. In order to create safe working conditions for miners in the excavation areas of a deep coal mine and prevent the collapse of side rocks in the coal massif, it is advisable to use flexible protective structures for the protection of preparatory coal mine roadways, when the ratio of their linear dimensions corresponds to the ratio of length to width of a/b>(1-2).","PeriodicalId":344647,"journal":{"name":"JOURNAL of Donetsk mining institute","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124443603","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}

{"title":"DEVELOPING RECOMMENDATIONS FOR PREVENTING ACCIDENTS AND EMERGENCIES AT MINING ENTERPRISES IN UKRAINE","authors":"V. Ezhov, V. Riasnyi, I. Yevstratenko, S. Chukharev, V. Korniyenko","doi":"10.31474/1999-981x-2021-2-35-42","DOIUrl":"https://doi.org/10.31474/1999-981x-2021-2-35-42","url":null,"abstract":"Purpose. To analyse accidents at Ukrainian mining enterprises and to develop recommendations for the prevention of accidents and emergencies. Methodology. Statistical information on operational visits to accidents and emergencies by the paramilitary mine rescue service (PMRS) serving mining enterprises and other information on the state of accidents at mining enterprises in Ukraine was collected and processed. Results. On the base of statistical data provided by the PMRS and other public sources, it was determined that the main accidents and emergencies occurred in 2020 and 2021 at mining enterprises are: fires, collapse and falling of fragments of rock, in-mine and pit transport accidents, accidents caused by the use of the lifting complexes, head frame structures and mine shafts directly. Scientific novelty. The cases of accidents and emergencies at mining enterprises are systematised and measures for their prevention are proposed. Practical significance. Practical recommendations developed for mining enterprises in Ukraine on preventing accidents and emergencies in the underground and open-pit mining of mineral deposits. Priority areas of work for the next years determined for managers of mining enterprises and labour protection services: fire protection of enterprises, safety in use of in-mine and pit transport, control over conditions of lifting complexes and mine shafts; control over the use of power equipment, protection of miners against traumas at collapse in underground mine workings and surface mines, implementation of occupational health and safety training programmes for miners.","PeriodicalId":344647,"journal":{"name":"JOURNAL of Donetsk mining institute","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122334657","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}

{"title":"A METHOD FOR EVALUATING THE BALANCE AND QUALITY OF GROUNDWATER AND MINE WATER IN THE SYSTEM OF HYDRAULICALLY CONNECTED MINES","authors":"D. Rudakov, Sun Yajun, O. Inkin","doi":"10.31474/1999-981x-2022-2-85-92","DOIUrl":"https://doi.org/10.31474/1999-981x-2022-2-85-92","url":null,"abstract":"Purpose. This study aims to develop and test a method for analytical evaluating the water-salt balance within a group of hydraulically connected mines. Methods. The proposed approach includes collection, systematisation, and analysis of actual data on the flow properties of rocks, mining and geological conditions of mining coal seams that influence forming the hydrodynamic regime of the mines of the Selydivska group. To evaluate the water-salt balance of the hydraulically connected mines, the balance method and the analytical relationships of the groundwater flow theory were used. Results. The water-salt balance elements for the hydraulically connected mines of the Selydivska group were calculated for three variants having reached the good conformity with available actual data on inflows and interflows between the mines. Inter-mine fluxes of total salt mass and salts were estimated as well as iron and manganese as microelements with the highest content in mine water. According to on the predictive estimate, the increase in the water level in mine no. 2 “Novogrodivska” from +130 m to +180 m will lead to an increase in the inter-mine water inflow of up to 10% to the active mine no. 1–3 “Novogrodivska” with a proportional increase in salt flux. Novelty. The method of calculating the water-salt balance of hydraulically connected mines based on the balance method in combination with the analytical relations of the groundwater flow theory has been substantiated and verified. The developed technique allows to preliminary estimate hydrogeochemical regime parameters without discretization of the flooded mine territory in comparison to sophisticated numerical models. Practical significance. The proposed technique can be used both for engineering predictions of the groundwater and surface water quality near closed mines, and for substantiation of a conceptual model for numerical analysis of the hydrogeochemical regime in the territories of former mineral extraction.","PeriodicalId":344647,"journal":{"name":"JOURNAL of Donetsk mining institute","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122685684","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}