Table of contents

Preface

The conference proceedings contain the selected papers presented at the International Scientific Conference "Knowledge-based technologies in development and utilization of mineral resources" held on June 5-8, 2018 within the framework of the International Specialized Exhibition of Mining Technologies Russian Coal and Mining in Novokuznetsk, Russia. The conference was dedicated to the 400^th anniversary of the city of Novokuznetsk.

The conference was organized by Siberian State Industrial University (Novokuznetsk, Russia), the Federal Research Center for Coal and Coal Chemistry of the Siberian Branch of the Russian Academy of Sciences (Kemerovo, Russia), Scientific Research Institute for Industrial Research and Environmental Safety in the Mining Industry (Kemerovo, Russia), the University of Science and Technology Liaoning (Anshan, China), Expo center "Kuzbass Fair" (Novokuznetsk, Russia). The event was actively supported by the Administration of Kemerovo Region and Novokuznetsk, the Russian Foundation for Basic Research.

The conference is a recognized scientific and practical forum for professional discussion of problems related to the state and prospects for the development of new technologies, machinery and equipment that ensure the rational use of mineral resources, industrial and environmental safety of mining enterprises. The event was attended by scientists and specialists from different institutions, companies and coal mining enterprises from Russia, Germany, India, Italy, the Donetsk People's Republic, India, Italy, Tajikistan. Active participation of PhD students and young scientists is particularly noteworthy.

More than 100 papers were submitted to the Conference Organizing Committee. The present issue of IOP Conference Series: Earth and Environmental Science contains 56 specially selected research papers covering the following topics studied by leading domestic and foreign R&D organizations, representatives of the mining and processing industry, universities: creation of digital technologies for performance of production processes dangerous for personnel with the use of robotic manipulators; improvement of traditional methods and technical means of mining and processing of mineral resources based on the results of mathematical modeling of the main and auxiliary processes parameters, including coal seam gas drainage, prevention of geodynamic phenomena.

The Organizing Committee expresses deep gratitude to all organizers and participants of the conference for their active participation and discussion of the theoretical foundations and results of the practical application of innovative ways and means of integrated use of mineral resources in the safe working conditions, which is a significant contribution to the development of mining science and practice. Also the Organizing Committee would like to thank the Russian Foundation for Basic Research for its financial support (project No. 18-05-20026).

Vice-chair of the Organizing Committee

and Editor-in-chief

Prof. Dr. Viktor Fryanov

All papers published in this volume of IOP Conference Series: Earth and Environmental Science have been peer reviewed through processes administered by the proceedings Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.

The article is devoted to the forms of interaction between business, scientific organizations and authorities on the development of partnership in the conditions of the regional economy. The role of intellectual property objects (IPO) in the innovative development of territories is analyzed. The practical experience of projects implementing, based on a preliminary study of the problems and potential of municipalities, as well as the transfer of IPO, is presented.

Based on the mathematical model of structurally inhomogeneous rock mass, the problem of stress distribution nearby a disjunctive break ahead of the stoping face is considered. The model describes the property of rocks to accumulate elastic energy in the form of internal self-balancing stresses. The problem is solved numerically in the quasi-static formulation using the finite element method. It is shown that the presence of the fault zone can provoke release of the accumulated elastic energy and, thereby, change stress distribution in surrounding rock mass.

The authors have found experimentally that elastic wave velocity depends on compressive stresses in tubular samples made of equivalent geomaterials. The relation between the wave velocity and tangent modulus of elasticity is determined. The values of the dynamic modulus of elasticity as function of the compressive stress are obtained.

The authors study deformations of a granular material flow from a converging channel using the method of Particle Image Velocimetry (PIV). It is experimentally proved that shears localize along two orthogonal families of slip lines. During material flow, shears periodically "switch" between the families. Furthermore, the flowing material is split into blocks of different densities, and the maximum rates of density variation are concentrated along the slip lines of one of the families. The results of numerical modeling by the discrete element method and the laboratory-scale experiments qualitatively agree.

Presents the results of the solution to the problem of creation of a trajectory of movement in the roof rocks of the reservoir production artificially created cracks under the action of internal fluid pressure. The array is loaded equivalent gravitational field stresses and he is in condition of plane deformation. The emergence of cracks and admission thereto of fluid are not considered. Breeds of soil and roof of layer strong enough to deform elastically and upon reaching the limit state of collapse as the fragile materials. The problem is solved in the framework of model of geomechanical state of rock massif containing local zones in the ultimate state. The model is based on the main provisions of the solid mechanics, it is implemented by means of boundary element method and classical views of the state of the crack, its stable and unstable growth in an infinite plane of a brittle material based on the theories of Griffiths – Irwin.

The processes of coal self-heating, which, as a rule, have a local character, are the most acute problems for the coal industry. Experimental and theoretical studies show that self-heating is influenced by the processes of heat accumulation and temperature increase, which means that more heat is formed in the area of rock and coal concentration than released into the surrounding environment. Thus, self-heating can quickly and unexpectedly go into fire, and then into an endogenous fire. Any source of self-heating is a thermal "source", which is the cause for spreading thermal field that inevitably leads to an increase in the temperature of the rocks surrounding the faces and then the air atmosphere of the faces. A mixed boundary-value problem for a one-dimensional parabolic equation describing the temperature field in the areas of rock and coal concentration in the presence of self-heating zone was formulated in order to reveal the regularities of temperature field propagation in the vicinity of the self-heating zone. A formula is obtained that determines the temperature of the rocky-coal cluster. Calculations were performed on the basis of which the temperature dependences of the temperature in the rocky clusters were plotted against its thermophysical parameters and certain regularities of the temperature field in the cluster were revealed.

The authors perform 3D discrete element modeling of pre-broken coal and dirt discharge in underground mining with sublevel caving of thick coal seams. The process of force interaction between rocks and powered roof support is analyzed. The difference between the discharge regimes with feeders equipped with smooth and corrugated surfaces is demonstrated. The mass flow of coal during discharge is shown.

The paper presents the developed approach to the construction of mathematical models of the stress-strain state of a geo-massif under the influence of natural and technogenic forces. According to the proposed concept, the geological environment is considered as a nonlinear hierarchically organized multiscale system. The natural state of the geo-massif is formed as a result of the influence of gravitational, geotectonic forces and internal pressure of fluids, and the man-made impacts lead to a change in the natural stress field as a result of formation of disturbances in the integrity of rocks in the unloaded zones and stress concentrators around the areas. Description of the stressed-deformed state of the geo-massif is carried out through a hierarchical family of mathematical models, which are constructed in the form of boundary value problems of the theory of deformable solid. First, at the lower hierarchical level, the determining relationships are developed, in which the influence of natural forces is taken into account, and then the generalization of the obtained models for determining technogenic impacts is carried out at the upper level. The proposed approach allows the links in the resulting hierarchical structure of models to be built, which makes it possible to carry out studies of both the disturbed and the natural state of the geo-massif.

The problem of the construction of inclined trunks in the conditions of coal mines in the Tersinsky geological and economic region of Kuzbass is discussed in the paper. The feasibility study for the technological option of the inclined boundary shaft construction in seam 67 in the complex mining and geological conditions of the mine was carried out. The recommendations on the monitoring of the workings state and development of measures ensuring the reduction of negative manifestations of rock pressure during the construction and operation of the inclined shaft are given taking into account the cumulative influence of the system of the previously mined workings and seasonal increased water inflow.

The technique of initial data preparation for geomechanical substantiation of parameters of mine workings interfaces is offered. The results of the mine experiment on a stressed-deformed state of a rock massif in the intersection of a belt road with a diagonal connection are presented taking into account the spatio-temporal location of the mining face. A comparative evaluation of the results of instrumental measurements and calculated displacements of the roof rocks in the intersection of mine workings was carried out.

The results of a numerical study of rock deformation near the preparatory mine working during underground mining of coal seams of a complex structure are presented. The evaluation of the stress-strain state of rocks with the location of rock interlayer within the coal seam is performed: in its upper, middle and lower parts.

Physicotechnical and organizational-technological models of technologies and technical means were developed, an integrated feasibility study of the organization of production of competitive products was performed, and the main technical and economic parameters of the newly created production were calculated for obtaining fuel and non-fuel products. When implementing the organizational and technological model of innovative production at the first stage, the following combined directions for processing mineral raw materials and new products are planned: 1) processing of carbonic acid mineral raw materials: calcium carbide, carbon dioxide (in gaseous, liquid or solid state); 2) acetylene, plant growth regulators (REGROST), plant protection products (TAKAR). Fuel products in the second stage: 1) synthetic ethyl alcohol (ethanol), antifreeze, ethylene glycol, dichloroethane, synthetic drying oils, acetone, etc.; 2) Carbamide (urea), ammonia, nitrogen in gaseous and liquid state, methanol, gasoline, etc. The previously developed economic-mathematical model (EMM) of production organization has a high degree of universality. It is advisable to implement the EMM differentially for alternative options at coal-mining, energy, gas producing and fuel-energy enterprises.

The article considers current state of mineral resources base of Mezhdurechensky administrative district of Kemerovo region. The main mineral resource of the region for the present and the near future is coal, explored reserves of which ensure operation of coal-mining enterprises for a period of 15 to 85 years. Another relevant mineral resource in the district is placer gold, which is mined by small diggers at several placers in Kuznetsk Alatau and Mountain Shoria. The district has significant resources of metallic (manganese, ore gold) and non-metallic (talc, tremolite, vermiculite, etc.) minerals.

The development of the Russian economy for many years will be based on the effective use of mineral resources. At the same time the development of deposits characterized by the worst mining and geological conditions, while increasing the intensity of mining operations, leads to an increase in mining risks. In the paper, recommendations are given on a set of measures aimed at ensuring the safety of mining operations at the enterprises of the mineral resources sector in Russia based on the analysis of the current regulatory and legal framework and the assessment of factors that affect the growth of the probability of emergency situations. The obtained conclusions are drawn from the situation in the Russian coal industry. The proposed recommendations are based on a risk-oriented approach illustrated by the example of the coal industry. In the paper the directions for improvement of the mechanism of organizational-economic provision of mining operations safety at the enterprises of the coal industry are presented.

The fuel and energy industry in Russia is the basis for the functioning of the national economy, on the one hand, providing energy and energy resources for all types of economic activities, as well as for the nonmaterial sphere, on the other hand, forming the greater part of budget revenues from energy exports. In modern economic conditions, and also taking into account the stage of the economic cycle, these problems can be solved through innovations. The prerequisites for the implementation of innovative activities in the fuel and energy industry in Russia are considered. The authors described the level of innovative development at the enterprises of fuel and energy sector giving reasons for its relatively low importance. Based on the technical and economic characteristics of the products and production processes of the companies of the fuel and energy industry, specific features of the organization and implementation of innovative activities in it are determined. Studying the experience of implementing innovative ideas in the Russian fuel and energy sector allowed the factors hampering the success in this direction to be formulated. To implement innovation activities effectively in the Russian fuel and energy industry, it is necessary to carry out a number of transformations both at the level of industries and in individual enterprises in order to reduce the negative impact of the identified factors.

The fuel and energy complex (FEC) of Russia is going through hard times. The problems of development and investment are particularly acute in the coal sector, where demand and prices have fallen particularly hard due to the financial crises of 2008 and 2014, unstable energy prices, sanctions and the transition of a number of countries to "carbon-free energy development". In these circumstances, only the transition to flexible technologies, which are able to quickly adapt to changes and extinguish the external negative shocks, within the framework of close cooperation of science, government and business can save the Russian coal industry. The purpose of this article is to analyze the currently available project forms of cooperation between science, business and government for the benefit of the innovative development of the coal industry and to summarize the experience of implementing such project forms of cooperation at the Federal Research Centre of Coal and Coal Chemistry of Siberian Branch of the Russian Academy of Sciences (FRC CCC SB RAS), Kemerovo region.

The paper discusses a new approach to developing a typology of resource regions based on their readiness for comprehensive exploitation of mineral resources and the level of innovative development. The use of fuzzy clustering apparatus is explained by the fuzzy boundaries for defining classes as it allows improving the quality of the typology.

The paper discusses the use of shift-share analysis method for assessing resource regions' readiness for comprehensive exploitation of mineral resources. The relevance of this study is explained by the fact that the choice of the factors affecting regional processes and the quantitative assessment of their impact are limited by the available statistical information. The lack of necessary statistical data significantly reduces the possibility of using econometric methods. The shift-share analysis method allows assessing the sectors of resource regions' economy, which serve as keys to identifying their readiness for comprehensive exploitation of mineral resources. The study focuses on the group of 36 resource regions specializing in the extraction of oil, gas and coal.

This article is devoted to the study of the importance of the intellectual component in the sustainable development of the economy of the Russian regions, taking into account foreign practices. The article outlines the factors constraining the development of pledge transactions with rights to intellectual property objects (IPO) in Russia, identifies key problems that require a solution for turning IPO into an active resource for sustainable development of the regional economy. The accents of organizational, legal, economic and methodical character are made. The article is prepared with the support of the Department of Education and Science of the Kemerovo Region within the framework of the Agreement on Grants from the Regional Budget for the Implementation of Research Projects (the project "Intellectual Property as the Basis for Sustainable Development of the Coal-mining Region (case study Kemerovo Region)").

The article is devoted to the study of the influence of the natural resources located in the regions of Russia on the level of socio-economic and innovative development. At the first stage of the study, a cluster analysis was applied to the database of indicators of the level of extraction specialization in the regions of Russia. During the next stage of the study, hypotheses on the connection between socio-economic indicators and specialization of the region in extractive industries were tested via multifactor regressions. Positive dependence of socio-economic variables on resource specialization variables with a high level of significance was revealed. However, most of Russia's resource regions have low level of innovative production, which can have a negative influence on country's economic growths.

The article shows that for Russia the innovative development of resource regions, based on the principles of smart specialization, should be accompanied by a significant amount of investment. A significant part of the Russian regions are enclaves, which is a characteristic feature of the economic and infrastructure isolation of the region from macro-regional and all-Russian economic relations. Such isolation is primarily due to the localization of mineral natural resources in remote areas with severe natural, economic and mining-geological characteristics. Such regions are unable to attract private investment to a large extent. In these circumstances, the actual task is to use the principles of public-private partnership (PPP).

The methodology of working out the techniques for geophysical monitoring of the process for directional hydraulic fracturing of a hard roof and the process of local hydrotreating of a coal seam face working space is introduced in the paper. The research is done in two basic directions: the first is predicting and managing geo-mechanic condition of a gas-saturated tight rock massif containing coal; the second one is monitoring and managing the processes of hard roof directional hydraulic fracturing and protective hydrotreating of a coal seam against rock bumps and sudden outbursts. To monitor the stress condition of a face working space a complex method that includes monitoring of stress condition by spectral-acoustic method (the analysis of a noise spectrum of an operating equipment) and gas factor control by gas monitoring equipment (controlling methane concentration near the fore-breast is justified. Some widely known options of applying spectral-acoustic method for controlling stress condition are analyzed and the application of the best-attested one is justified. To control the process of a jump-like growth of a fracture in a roof and in a coal seam the method of acoustic emission if justified.

The article reveals information about the results of directional hydraulic fracturing practical application which implied the reduction of actual main roof rock caving steps. The authors calculated initial main roof caving steps taking the implementation of hydraulic fracturing into account. They demonstrate the scheme with boreholes location and present their estimated parameters. The authors controlled the implementation of hydraulic fracturing by means of acoustic sounding. They give the results of seismic activity control of enclosing rock in the extraction column profile at the time of the mechanized complex leaving the installation chamber. Considering the results of the conducted research, the authors have made a conclusion in relation to the effectiveness of the hydraulic fracturing implementation scheme under these conditions.

The article reveals information about implementation of roof rock directional hydraulic fracturing technology when face was advancing under tough roof. The authors justify application of directional hydraulic fracturing. They developed the scheme for roof softening considering mining and geological conditions of "Esaulskaya" mine. The authors describe technological process taking place during implementation of directional hydraulic fracturing and give the list of the applied general and specialized equipment. Considering the results of the performed operations the authors made a conclusion in relation to the effectiveness of the conducted work. They assessed the qualitative characteristics of the performed activities aimed at roof softening. The authors determined physical and mechanical characteristics of the active roof on the basis of seismic survey data analysis.

It is proposed to reduce the duration of mounting and dismantling works before starting to develop the next extraction panel in mines that operate according to the scheme 'mine – longwall', which will improve the safety and eliminate emergencies during mining operations.

The article presents the basic requirements for a laboratory facility creation that allows one to investigate the spectral-acoustic monitoring method sensitivity depth when testing the face area stressed state in front of a development heading. These data are necessary for establishing the scope of the spectral-acoustic method use for forecasting the dynamic phenomena in the process of various technological operations performance when mining: forecasting the outburst danger, controlling the anti-outburst measures effectiveness, assessing the anchor support quality and the hard-to-collapse roof directed hydraulic fracturing efficiency and so on. The reported study was funded by Russian Scientific Foundation grant (project No. 17-17-01143).

In the paper the most common and rapid methods of determining the strength properties of rocks in domestic and foreign practice are considered. The authors proposed a fundamentally new way of assessing the rock resistance to brittle fracture. The developed method can be successfully used to determine the properties of rocks both on samples and outcrop of the massif, as well as in the wells drilled in the massif.

Currently, a large number of existing mine hoisting units use the electric drive based on asynchronous motor with a rotary station. Despite the fact that such drives have a large overload capacity and linear (within the working areas) mechanical characteristics, they have drawbacks, first of all, significant energy losses. The promising way of their modernization, as well as design of new drives based on a phase-wound rotor motor, is the use of the scheme of a doubly-fed electric machine. The paper outlines the requirements for the electric drive of a mine hoisting unit, in particular, for its mechanical characteristics; the analysis of the mechanical characteristics of the doubly-fed machine in asynchronous and synchronous modes, as well as changes in the active resistance of the rotor was carried out; the working sections of characteristics are indicated; the operating modes of the machine are compared to the sections of the speed diagram of the hoisting unit; the rationale for the combined control of the machine with the change in operating modes directly during operation is shown.

Structural-phase states and tribological properties of the wear-resistant coating formed by electric arc surfacing with flux-cored wire on the low-carbon steel Hardox 450, used to protect large volume excavator buckets, are established.

In this paper the coatings of the Ag-W system obtained by electroexplosive coating on copper electrical contacts of power mine equipment were studied. The modes of deposition and sample weights of silver and tungsten powders were chosen, metallographic research by the methods of light and atomic force microscopy, microhardness tests were carried out. The results of the tests show that the copper electrical contacts of KPV-604 controller have increased values of microhardness and are characterized by a submicrocrystalline structure based on tungsten and silver. The optimum mode of electroexplosive deposition is established at a voltage value 2.5 kV. In this mode, the coating layer has the greatest average microhardness value, in comparison with other investigated regimes. This value is 457.5 ± 55.2 HV, which is 3.8 times higher than the average value of microhardness in the copper substrate. The analysis of the thin section roughness showed that the average roughness value of the coating is greater than the average roughness values of the substrate and the layer with the altered state by 50.015 nm and 22.849 nm, respectively. The coating of the Ag-W system on the copper contacts improves their mechanical and physical properties. The studied treatment modes make it possible to increase significantly the microhardness of the surface contact layer, as well as to increase their electroerosion resistance due to the presence of tungsten particles in the coating, and to maintain the necessary electrical conductivity, facilitated by the presence of silver.

Modern problems of butt welding of hauling tracks in mine workings are considered. The article describes the method for studying the influence of isothermal annealing modes of a welded joint of samples from rail steel. The cutoff layout of samples used for experiments and the equipment are provided. The developed method allows the temperature to be measured in the weld metal and the heat-affected zone in the process of welding the samples from rail steel. Using the developed method it is proposed to study the effect of thermal cycles of butt welding on the structure of rail steel. The result of using this method is shown as an example.

The possibility of manufacturing a welding flux based on silicomanganese slag and ladle electric steelmaking slag is discussed. Silicomanganese slag and ladle electric steelmaking slag were used in the experiments. Flux additive was introduced in a ratio of 5, 10, 20, 30, 50% to the silicomanganese slag. The possibility in principal of using technogenic wastes of metallurgical production is shown: slag from silicomanganese production and flux additives based on ladle electric steelmaking slag as surfacing flux. It is determined that in connection with the low concentration of iron oxide and increased basicity, it is possible to use this material for alloyed metal deposition. The analysis of the contamination level with nonmetallic inclusions and an increase in the sulfur content in the welded metal showed that without quality deterioration it is possible to introduce a flux-additive based on the ladle slag of steelmaking production in the amount not exceeding 20%. Increase in the flux additive in the amount not more than 20% worsens the welding quality, the number of non-metallic inclusions increases, as well as the sulfur content. When increasing the amount of the flux additive over 30%, the appearance of the welded layer deteriorates.

The paper discusses the possibility in principle of barium-strontium modifier application as a refining and gas-protective additive for welding fluxes based on silicomanganese slag for surfacing mining equipment. In the experiments the barium-strontium flux additive was used, prepared in two ways: barium-strontium modifier mixed with liquid glass and the dust of barium-strontium modifier with a fraction less than 0.2 mm. The additives were mixed at a ratio of 2-10% from weight of silicomanganese slag. It is shown that the use of a mixture of barium-strontium modifier with liquid glass as an additive is more preferable to the use of additive as a dust. It was established that the use of not more than 8% of a barium-strontium additive is optimal from the point of view of metal contamination with nonmetallic inclusions.

The effect of introducing various elements into the charge of a powder surfacing wire was studied. The dependences of the deposited layer hardness and its wear resistance on the mass fraction of the elements that make up the powder wires were determined by the method of multifactor correlation analysis. A new composition of the flux-cored wire used for surfacing mining equipment operating in the conditions of abrasive wear was developed.

In the paper, the possibility of producing a flux-cored wire on the basis of the dust from gas purification of silicomanganese production and dust from a gas purification of aluminum production at a different ratio of components was studied. The possibility in principal of producing a flux-cored wire for surfacing is discussed, the qualitative indices are studied and the manganese recovery coefficients with various component ratios were calculated. Statistical processing of the obtained results was carried out, statistical dependences of the influence of the component composition on the deposited layer properties were constructed.

Specific features of functioning of a modern road and transport infrastructure on the example of Kemerovo region are determined. As a tool for justifying management decisions and the formation of projects for short-term periods, a set of indicators of functioning and resources allocation of the road and transport infrastructure was proposed. Taking into account the situation in Kemerovo region, three types of scenarios for the development of projects in the road and transport infrastructure are considered, depending on the investment potential: optimistic, mild and pessimistic. To eliminate uncertainties in the planning of functioning and resources allocation of road and transport infrastructure at the strategic level, the model for the problem of functioning and resources allocation in the road and transport infrastructure within the fuzzy-set theory was formulated. The modeling of scenarios based on the developed fuzzy model of functioning and resources allocation in the road and transport infrastructure at a qualitative level was performed. The proposed models for the functioning and resources allocation in the road and transport infrastructure made it possible to obtain quantitative and qualitative assessments of the system condition for assessing the effectiveness of functioning in operational and strategic planning in the conditions of uncertainty.

Based on the results of numerical modeling the assessment of the options for selective and sequential development of the working areas and coal mine blocks by fully-mechanized longwalls with a complete collapse of the roof and short faces with the roof controlled by rib pillars. As the criteria for assessing the effectiveness of geotechnological options, the coefficients of vertical stress concentrations in the selvedge of the coal seam in the vicinity of extraction galleries and the height of the unloading zone of the roof rocks over the gob are adopted. Factors that limit the use of longwall faces are the presence of disjunctive disturbances within the mine field, which leads to coal losses and irrational use of subsoil. It was established that successive development of excavation sites with long and short faces results in a more even distribution of the vertical stress concentration coefficients, reduces the probability of zones with increased rock pressure and gas dynamic phenomena, and also provides an opportunity to increase the coal extraction factor.

The experience of modernization of the automated process control system for the coal preparation plant in the conditions of technical re-equipment of the coal preparation plant "Barzasskoye Tovarischchestvo" LLC (Beryozovsky) is considered. The modernized automated process control system (APCS), the modernization goals and ways of their achievement are presented, the main APCS subsystems and the integrated functional and technical structure of the upgraded system are given. The procedure of commissioning of the upgraded system is described.

The method to test application software of a process control system for belt conveyor on the base of the modified approach "hardware-in-the-loop" is proposed. The description and example of using of specialized software-hardware complex for testing of application software of process control systems is given.

Currently, a large number of existing mine hoisting installations use the electric drive based on an induction motor with a rotary station. Despite the fact that such drives have a large overload capacity and linear (within the working areas) mechanical characteristics, they have drawbacks, first of all – significant energy losses. A promising way for modernization of such drives, as well as design of new ones based on a wound-rotor induction motor, is to use a doubly-fed machine. In the article the operation algorithm of the hoist electric drive on the basis of a doubly-fed machine is given. The algorithm realizes a combined method of controlling the machine in the speed function, combining asynchronous and synchronous modes of operation with the mode of changing the active rotor resistance. The control of the hoist electric drive in accordance with the proposed algorithm allows the required range of machine speed control to be reached while maintaining the overload capacity on the entire control range.

In the paper, based on the analysis of the functional properties of control objects, the basic principles of automation of the fan installation are considered, the functional structure of the control object is given, the main functional connections of the controlling object with the distributed principle of controlling the objects of the fan installation are determined. The technique for developing a control system using the principle of modularity is proposed, which makes it possible to reduce the labor costs for the implementation and debugging of the system of technological automation and protection of the fan installation.

The options of applying spectral-acoustic method of controlling stress state of a rock massif for preventing dynamic phenomena are analyzed in the paper. Two options are based on the dependence of relationship of high and low frequencies amplitudes of acoustic signal spectrum of operating equipment on a stress state of a massif in the area between the generator and the receiver of the sound. The difference between these two options is in choosing between high-frequency and low-frequency areas of a source sound spectrum. The drawback of both is in failure to use the whole spectrum of a sound that may cause the error in controlling stress state. To correct this drawback a modified option for applying the method based on the dependence of the median of amplitude and frequency characteristics of a sound on actual stresses is justified. The results of testing the method for controlling stress state of a working face space of a stope in the process of a hard roof directional hydraulic fracturing by hardwaresoftware complex based on RIPAS apparatus are introduced.

The article presents a perspective platform for the creation of robotic complexes for the effective and safe development of hard-to-extract minerals based on the walking support module. It describes the concept of automation control based on combining BCI and AR technology, and a method for testing control algorithms based on the application of the MTSS (Manufacturing and Transportation Simulation System) as part of the hardware and software complex for debugging and testing the applied software of the automated process control system for coal and ore mines. The reported study was partially funded by RFBR according to the research project No. 18-37-00356.

The article describes approaches to creating products based on Augment Reality technology, examples of their practical application in production, including for dispatching, prospects for development in industry, including in the mining sector. The given examples demonstrate the production and economic efficiency of the introduction of modern computer technologies, including the technology of augmented reality. The article was prepared with the financial support of the Russian Fund for Fundamental Research within the framework of the scientific project No. 18-37-00356.

The mechanism of two-criteria optimization for the resource planning problem is proposed, where the formalization of the problem can be represented by the direct and inverse control problem with a structurally similar description of the objective and cost functions. The set of Pareto-solutions of the two-criteria problem is determined by solution of the direct and inverse problems by the method of dichotomous programming, and the optimum on the set of Pareto-solutions – by the mechanism of complex estimation.

The article views the experience of mine geophysical prospecting using a seismic screening method of roof rocks from mine workings. The possibility of recording coal seams structural disturbances is estimated based on the analysis of seismic signals velocity fluctuation. The results of coal seam conditions assessment and their influence on the technological process of coal mining are presented.

The statistics of coal and gas outbursts in the faces of the Russian coal mines is provided. The mining-geological and mining-engineering conditions for the occurrence of sudden outbursts during the coal mining are considered, and the distinctive features in the factors of their occurrence and behavior are discussed. The criteria for identifying the potentially hazardous zones with the help of geophysical measurements are given. It is shown that it is important to take into account the data on the actual occurrence of outburst hazard in overlying and underlying longwall faces and development workings, as well as the results of the current forecast when preparing the extraction area for mining, as it follows from the results of underground investigations. The features are noted and the concept of the mechanism causing sudden coal and gas outbursts of faces is formulated. According to this concept, the probability of a hazardous situation is minimal at the beginning of the face advancement before the primary roof collapse. After the primary caving, the outburst hazard increases with the face advancement from the place of caving due to increased stresses in the bearing pressure zone, strengthening of the restraint of the nearest roof support, and the formation of a low permeable bridge in the coal seam near the exposed surface of the coal massif, which increases the pressure and free gas volume behind this bridge. The maximum degree of outburst hazard in the cleaning face is reached at the time of secondary roof collapses.

The project proposes a completely ecologically and energetically closed waste-free technology for gasification of pulverized coal waste in a suspended slag layer, producing a conditioned synthesis gas, simultaneous reduction and recovery of metal from ash and slag, and also obtaining a highly porous aluminosilicate slag (microspheres) suitable as lightweight aggregate, paints and coatings with low thermal conductivity, as well as adsorbent and other applications.

The article presents the data of deformation monitoring implemented in the Baikal Rift Zone in the time of initiation of strong earthquakes using the heterodyne laser deformograph. The anomalous behavior of the semidiurnal tide wave amplitude before the region-scale earthquakes is described.

The analyzes of the known approaches to the distribution of environmental and economic resources, including the current environmental costs, in connection with their impact on reducing the level of eco-economic risks, is carried put in the article. The analysis of the dynamics and structure of current environmental costs of large industrial enterprises is carried out, and the dependence of the level of excess emission charges on the magnitude of current environmental costs is graphically presented. A mechanism for adjusting the current system of distribution of such costs has been developed to lead to their proportional reduction relative to an increase in the values of risk level indicators. In order to prepare for an effective management decision, an algorithm for managing the system of distribution of current environmental costs is presented. The analysis of the impact of the adjusted system of distribution of current environmental costs on the technical and economic performance of the enterprise was carried out. The work done is of practical importance for large industrial enterprises that have a complex negative impact on the environment, which significantly affects their technical, economic and financial performance.

The procedure for developing scenarios of waste processing, land reclamation and creation of recreational zones is proposed. Three types of scenarios for improving the level of environmental safety in mining areas have been developed. On the basis of the software complex, forecast estimates of the scenario indicators have been obtained, the selection of Pareto-optimal solutions and their ranking according to the levels of environmental safety have been carried out.

The article describes the mechanism for assessing the personal and communicative professional competencies of personnel, corresponding to labor functions and the development strategy of a loading and transport enterprise. According to the results of the questionnaire of 21 respondents 44 meaningful competences were chosen from 257 proposed competencies. It is established that the use of the communicative competencies of personnel due to the emergence of a synergistic effect is more productive. The effectiveness of the work of the industrial control of labor protection department was defined within the range 58 - 98%. However, high production risks of incidents give rise to concerns, since during 23.7% of working time the labor functions are performed with violations of the requirements of professional standards. The results of the professional competences ranking are presented and distribution histograms on the importance of competences for improving labor productivity and reducing the risk of incidents in a loading and transport enterprise are constructed. The algorithm for sampling reduction by means of identification of the most significant competences is developed at loss of the minimum volume of the information. The probability of significant professional competencies for an enterprise exceeds 0.9.

The current stage of society development is characterized by rapid changes in the global fuel and energy complex (FEC). Supply chains, added value chains, and the structure of global markets are changing under the influence of the exhaustion of easily available resources, price fluctuations, the emergence of equipment and technologies for extracting previously inaccessible energy resources. Russia is one of the largest countries, and one of the richest in energy resources. The profound changes taking place in the world fuel and energy markets are a challenge for Russia, which can both dramatically accelerate its development (acting as an "open window of opportunity"), and throw it back to the periphery of the world economy. In these circumstances, it is very important to understand the essence of these changes and to find the best way for the country to respond to these changes. The purpose of the article is to identify the essence of the profound changes taking place in the global energy sector and to find the optimal ways of responding to them both for the Russian fuel and energy sector and the Russian economy as a whole..

A significant impact of the fuel and energy complex of Russia on the components of the environment is shown; in particular, the air pollution. The necessity of adopting the methodology for calculating the amount of harm from air pollution is substantiated. The analysis of the draft of Methodology for the Estimation of the Amount of Environmental Damage Caused by Air Pollution developed by the Ministry of Natural Resources and Environment of the Russian Federation is performed. The estimations of the amount of damage caused to the environment by excess emissions from stationary air pollution sources, as well as from agricultural burning and from combustion at waste disposal sites, including landfills, sites of temporary waste accumulation and unauthorized landfills. The directions of improvement have been developed both in terms of structure and content, theoretical and calculated part of the Methodology proposed by the Ministry of Natural Resources and Environment of the Russian Federation.

The paper reviews the approaches to defining "Resource regions" and substantiates the authors' own definition of "transforming innovations". Patent work activities of Kemerovo region's mining companies were analyzed to identify the transforming innovations.

The article analyzes the problems of sustainable development of Russia's resource regions, where the extraction of natural resources is at a declining stage. The economic indicators of the development projects with application of advanced extraction technologies to increase production efficiency were estimated. It was revealed that high costs of installation and application of advanced technologies do not allow for the full application, especially under the conditions of highly volatile oil prices and limitations on usage of foreign technologies. Measures to optimize the structure of costs and increase the overall efficiency of implementation of innovations in resource regions were proposed.