Now showing items 7-26 of 41

    • Dependence of gas emission from the sources undermined by stope mine workings on the rocks displacement parameters 

      Filatiev, Mykhailo; Antoshchenko, Mykola; Filatieva, Elvira (2018)
      The parameters are established in the work of the stope mine workings and rocks displacement, which correspond to the maxima of gas emission into the gas drainage boreholes. The angular and linear parameters ...
    • Destabilization of the hard coal microstructure by a weak electric field 

      Molchanov, Oleksandr; Rudakov, Dmytro; Soboliev, Valerii; Kamchatnyi, Oleksii (2018)
      This study aims to analyse physical and chemical changes in hard coal samples under the influence of low-intensity electric fields in comparison to the fragments of ejected coal, as well as the coal ...
    • Development of a three-parameter model of the shoe brake contact interaction with the drum in mine hoisting machine 

      Zabolotnyi, Kostiantyn; Zhupiiev, Oleksandr; Molodchenko, Artur (2018)
      For safe operation of mine hoisting machines (MHM) in the mining industry, it is necessary to provide high constructive reliability of brake systems, in particular, brake systems based on the block brake. ...
    • Ecological aspects of managing the stressed- deformed state of the mountain massif during the development of multiple coal layers 

      Buzylo, Volodymyr; Бузило, Володимир Іванович; Бузило, В. І.; Бузило, Владимир Иванович; Бузило, В. И.; Pavlychenko, Artem; Павличенко, Артем Володимирович; Павличенко, А. В.; Павличенко, Артем Владимирович; Savelieva, Tamara; Borysovska, Olena; бор (2018)
      The ecological consequences of long-term development of coal deposits for the components of the environment, buildings, communications and infrastructure facilities have been analysed. The stress-deformed ...
    • Expanding of spheres the application of borehole hydro-production technology to develop deposits of non-traditional hydrocarbons 

      Pedchenko, Mykhailo; Pedchenko, Larysa (2018)
      The reserves of oceanic hydrates of methane and natural bitumen in times exceed the stocks of traditional oil and gas. The purpose is the analysis of the adaptation possibility of borehole mining technology ...
    • Explosive wave propagation in the presence of antiseismic protective curtain 

      Kravets, Viktor; Remez, Nataliia; Kovtun, Andrii; Shukiurov, Azer (2018)
      The objective of this work is to study theoretically the stress wave formation in the borehole-to-borehole space and on the boundary with the borehole contour set by creating a directed fracture system in it. ...
    • Fire resistance evaluation of reinforced concrete floors with fire-retardant coating by calculation and experimental method 

      Kovalov, Andrii; Otrosh, Yurii; Ostroverkh, Olha; Hrushovinchuk, Oleksandr; Savchenko, Oleksandr (2018)
      With the help of a previously developed technique based on the solution of inverse and direct problems of heat conductivity, the fire resistance of a hollow-core reinforced concrete floor with “Neosprei” ...
    • Formation of safety conditions for development of deposits by open mining 

      Anisimov, Oleh; Анісімов, Олег Олександрович; Анісімов, О. О.; Анисимов, Олег Александрович; Анисимов, О. А.; Symonenko, Volodymyr; Симоненко; Симоненко, Володимир Іванович; Симоненко, В. І.; Симоненко, Владимир Иванович; Симоненко, В. И.; Cherniaiev, Oleksii; Shustov, Oleksandr (2018)
      The researched parameters of the catching device, which ensures the safe operation of equipment and working people in deep open pits, where are formed the benches by steep dipping layers. For obtaining the ...
    • Hereditary model of loose mined rock layer deformation in disintegrators 

      Nadutyi, Volodymyr; Tytov, Oleksandr; Cheberiachko, Ivan (2018)
      The objective of this work is to substantiate the hereditary character of the stresses and deformations accumulation in loose mined rock during the disintegrators working surfaces convergence. It is ...
    • Improving the process of coal extraction based on the parameter optimization of mining equipment 

      Hrinov, Volodymyr; Khorolskyi, Andrii (2018)
      The aim of this paper is to develop and validate methods of choosing the means of the mining face mechanization. This paper analyses existing methods of optimizing processes in mining. It was established ...
    • Influence of man-made edaphotopes of the spoil heap on biota 

      Popovych, Vasyl; Kuzmenko, Oleksandr; Кузьменко, Олександр Михайлович; Кузьменко, О. М.; Кузьменко, Александр Михайлович; Кузьменко, А. М.; Voloshchyshyn, Andrii; Petlovanyi, Mykhailo; Петльваний, Михайло Володимирович; Петльваний, М. В.; Петлеваный, Михаил Владимирович; Петлеваный, М. В. (2018)
      The aim of the work is to investigate the influence of man- made edaphotopes of colliery spoil heap on biota by bioindication method. The physicochemical properties of edaphotopes were investigated: ...
    • Integrated analysis of geofiltrational parameters in the context of underground coal gasification relying upon calculations and modeling 

      Inkin, Oleksandr; Інкін, Олександр Вікторович; Інкін, О. В.; Инкин, Александр Викторович; Инкин, А. В.; Tishkov, Volodymyr; Dereviahina, Nataliia; Sotskov, Vadym (2018)
      Objective of the paper is to substantiate and implement the integrated approach aimed at the studies of filtration and mass-transfer processes within roof rocks of coal seams in the context ...
    • Interaction of deformation-strength characteristics of the support load-bearing elements in the preparatory workings 

      Kovalevska, Iryna; Ковалевська, Ірина Анатоліївна; Ковалевская, І. А.; Ковалевская, Ирина Анатольевна; Ковалевская, И. А.; Barabash, Mykhailo; Husiev, Oleksandr; Snihur, Vasyl (2018)
      The objective of this work is to study the relationship of the deformation-strength characteristics of the fastening system with its displacement value. The tendencies of influence are divided ...
    • Investigation of muck drawing in blocks with trapezoid sills 

      Stupnik, Mykola; Kalinichenko, Olena (2018)
      The article is aimed at determining regularities of muck drawing in blocks and developing the technology of enhancing of muck ore parameters through shaping a trapezoid block sill. To confirm ...
    • Investigation of the influence of polyelectrolytes hydrodynamic properties on the hydrate formation process 

      Bondarenko, Volodymyr; Бондаренко, Володимир Ілліч; Бондаренко, В. І.; Бондаренко, Владимир Ильич; Бондаренко, В. И.; Svietkina, Olena; Sai, Kateryna; Сай, К. С.; Сай, Катерина; Сай, Екатерина; Сай, Е. С.; Klymenko, Vasyl (2018)
      One of the most perspective non-traditional sources of hydrocarbon raw materials and energy is gas hydrates (GH), which stimulates their large-scale study in many laboratories and scientific ...
    • Maintenance of reusable mine workings during the augering mining of coal seams 

      Bondarenko, Volodymyr; Бондаренко, Володимир Ілліч; Бондаренко, В. І.; Бондаренко, Владимир Ильич; Бондаренко, В. И.; Symanovych, Hennadii; Симанович, Геннадій Анатолійович; Симанович, Г. А.; Симанович, Геннадий Анатольевич; Симанович, Г. А.; Kovalevska, Iryna; Ковалевська, Ірина Анатоліївна; Ковалевська, І. А.; Ковалевская, Ирина Анатольевна; Ковалевская, И. А.; Chervatiuk, Viktor; Черватюк, В. Г. (2018)
      The augering mining of thin and very thin coal seams has been proposed for using the efficiency of this task, related to the stability of reusable mine workings. The interrelation has been established ...
    • Mathematical modeling of tight roof periodical falling 

      Prykhodko, Vira; Ulanova, Nataliia; Haidai, Oleksandr; Klymenko, Dina (2018)
      The paper proposes a method to determine of a coal seam roof falling step basing upon the analysis of stress and strain state of the rock mass area with mine workings formed as a result of coal preparatory and extraction ...
    • Modeling the process of hydromechanical amber extraction 

      Malanchuk, Yevhenii; Moshynskyi, Viktor; Korniienko, Valerii; Malanchuk, Zinovii (2018)
      The paper represents a process of hydromechanical amber extraction modeling to obtain input data and substantiate operation parameters of mining equipment to develop the improved hydromechanical ...
    • Parameters of selective martite ores disintegration in structured ore bodies deposits by borehole hydraulic monitors 

      Stupnik, Mykola; Tarasiutin, Viktor; Fedorenko, Pavlo (2018)
      The work is aimed at determining parameters of advance borehole stoping by hydraulic monitors leading to rational use of reserves structured according to ore types at deposits by means of advance stoping ...
    • Physical simulation of integrated protective structures 

      Nehrii, Serhii; Nehrii, Tetiana; Piskurska, Hanna (2018)
      An effective way of protecting development workings by integrated rock wall structures is considered. The necessity of improving this method and its experimental verification is substantiated. Integrated ...