Browsing Кафедра гірничої інженерії та освіти by Title
Now showing items 70-89 of 264
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Rational parameters of drilling-and-blasting operations at mine workings construction in the conditions of PJSC “Zaporizskyi iron-ore plant”
(2020)Purpose. Substantiation and choice of rational parameters of drilling-and-blasting operations for mine workings construction with the use of emulsion ex-plosives. Methods. The tasks were solved by a complex method, which ... -
Rational use and protection of subsurface resources in the underground mining of ore deposits in conditions of technogenesis
(2019)The basic scientific and practical results of rational use and protection of subsoil under underground mining of ore deposits in the conditions of technogenesis are based on reliable geological and surveying and geomechanical ... -
RATIONALIZATION OF DEEP BOREHOLES DRILLING IN THE CONDITIONS OF PJSC “ZAPORIZSKYI IRON-ORE PLANT”
(2018)Purpose. To develop effective approach to determination of parameters of deep boreholes location which would consider stress of the ore massif in the course of layers breaking. Methods. It has been established that energy ... -
Research an adaptation process of the system «Rock and coal massif–underground gasgenerator» on stand setting
(Instytut Gospodarki Surowcami miniralnymi i energiją Polskiej akademii nauk, 2012-02)The results of borehole underground coal gasification researches on the stand seating with account tech-nological and geological conditions and technological parameters at coal seam gasification process are examined. During ... -
Research into peculiarities of phase transitions during the dissociation of gas hydrates
(2021)Purpose. Analytical study of the dissociation process of gas hydrates taking into account the peculiarities of phase transitions occurring during their dissociation and described by the Clausius-Clapeyron equation. Methods. ... -
Research into thermobaric processes of methane gas hydrates formation
(2020)Based on experimental studies, the paper deals with the dynamics of the methane gas hydrates formation, influenced by the organized media, such as surface-active agents (surfactants, SAA), namely, dibutylphenol treated ... -
Research of technologies and technical means for drilling and blasting of horizontal mine workings
(2020)The main scientific and practical results of the study of technologies and technical means for drilling and blasting horizontal and inclined (up to 120) mine workings based on high-performance self-propelled drilling, ... -
Resource-saving technologies for ore extraction at great depths
(Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal, 2018)Introduction. Underground mining of ore deposits is characterized by deterioration of mining and geological and mining conditions, increased requirements for environmental protection and subsurface resourses protection, ... -
Revisiting the research of coal gasification proces
(Донецький національний технічний університет, 2017)The paper presents the last studies of the underground coal gasification process intensification by determining the concentration of combustible producer gases (CO, H2, CH4), depending on the temperature of reducing zone ... -
Revisiting the underground gasification of coal reserves from contiguous seams
(Національний гірничий університет, 2016)Purpose. Substantiating of contiguous coal seams coefficient during application of borehole underground coal gasification technology based on dependences of interstratial rocks subsidence on gasification duration. Methodology. ... -
Safe development of the decorative jaspilites in the energetically disturbed massifs
(Occupational Safety in Industry, 2018)Investigations were conducted in the field of the development of the decorative jaspilites in the energetically disturbed zones of massifs based on the results of the analysis of the rock pressure energy manifestation ... -
Safe mining of granites at the manganese ore deposits of Ukraine
(Occupational Safety in Industry, 2019)The main scientific and practical results of safety improvement of the granite development at the manganese ore deposits of Ukraine in energetically fractured zones of rock massifs are described based on the example of the ... -
Safety improving of mine preparation works at the ore mines
(Occupational Safety in Industry, 2018)Main scientific and practical results of safety improving of mine preparation works at the ore mines are given taking into account the geoenergy of the underground mining of ore deposits by revealing the physical essence ... -
Some economic indicators of coal mining from thin seams
(Trans Tech Publications, 2017)The method of investment attraction evaluation for the implementation of mining equipment was substantiated. Discounted financial results were taking into account. Pros and cons of chosen method were analyzed. The practical ... -
State support of stability in Coal-Donbas regions
(2020)Purpose. To develop a new approach to feasibility assessment mechanism of supporting production facilities of loss-making mines in Donetsk and Dnipropetrovsk regions. Methods. To solve the objective set, a complex approach ... -
Stress-strain state of the mine massif around the chambers of the second stage of mining
(Geotechnical mechanics, 2014)A stress-strain state of the rock mass around the chambers of the second stage of mining was analyzed with the help of thermodynamic method. This study is the question of the day as the ore reserves in the chambers of the ... -
Structural bonds development in the backfill mass when changing the dispersion of the binding material
(UNIVERSITAS Publishing, 2021)Purpose. Theoretical and experimental research on the structural and strength peculiarities of the backfill mass formation during the ore deposits development by activating the binding material of the backfill mixture using ... -
Study of Methods and Development of Technological Scheme for Heat Removal from Rock Waste Dump
(Trans Tech Publications, 2017-11)The aim of this paper is to study the methods and develop technological scheme for thermal energy removal from coal mine rock waste dumps. The prospects of renewable energy sources development in Ukraine are analyzed. A ... -
STUDY OF THE FORMATION MECHANISM OF GAS HYDRATES OF METHANE IN THE PRESENCE OF SURFACE-ACTIVE SUBSTANCES
(2017)Досліджено вплив поверхнево-активних речовин на механізм утворення газових гідратів метану. Визначено значення критичної концентрації міцелоутворення (ККМ) розчинів дібутілфенола, обробленого окисом етилену (ДБ), а також ...