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Research into parameters characterizing the process of withdrawing clay-mud formations from bore hole vuggy zones
(National Mining University, 2016-03-30)
Purpose. Substantiating technological parameters of the device for processing vuggy zone in the bore hole, based on the obtained dependences describing formation and withdrawal of clay-mud agglomerates and their influence ...
Industrial research into massif zonal fragmentation around mine workings
(National Mining University, 2016-03-30)
Purpose. The main purpose of the work is identification of massif zonal fragmentation around mine workings by means of industrial methods of research.
Methods. Research into processes of massif zonal fragmentation around ...
Implementing FLAC3D model for simulating deformation mechanism of steel frame support set by actual profile
(National Mining University, 2016-03-30)
Purpose. The problem of simulating steel frame irreversible deformation and displacement remains unsolved. The purpose of this research was to develop a new approach to simulation of frame yield support.
Methods. We used ...
Substantiation of cable bolts parameters for supporting mine workings in conditions of laminated rocks
(National Mining University, 2016-03-30)
Purpose. The development of approaches to the substantiation of the cable bolts installation parameters for the mine workings supporting in conditions of laminated rocks, taking into account the geometric parameters of the ...
Technological, economic and ecological aspects of selective coal mining from ultra-thin seams in conditions of Ukraine
(National Mining University, 2016-03-30)
Purpose. At present one of the topical problems associated with coal seams mining is the issue of induced wall-rock coal-cutting with stone, which results in coal getting clogged with refuse stone and turning into the rock ...
Efficiency of energy resource production while optimizing parameters of socio-economic balance
(National Mining University, 2016-03-30)
Purpose. Definition of the standardized index of energy resource generation efficiency in changing socio-economic conditions considering the development of the technological basis of the modern mining industry.
Methods. ...
Substantiating parameters of stratification cavities formation in the roof rocks during underground coal gasification
(National Mining University, 2016-03-30)
Purpose. Underground coal gasification, as a complex and technically difficult process, should be supported in many aspects by computer simulations or analytical calculations of rock mass behavior. However, little is known ...
Multi-purpose sorbent production by coal ash recycling
(National Mining University, 2016-03-30)
Purpose. The main purpose of the work is to increase adsorption capacity of the carbon-containing sorbent.
Methods. Adsorption and filtration processes were studied with the aid of chemical and physical methods, plotting ...
Destruction of rocks by the non-explosive depleting compounds during mining
(National Mining University, 2016-03-30)
Purpose. Justification of the possibility of non-explosive coherent rocks destruction while carrying out stratal underground mine workings on the basis of the set of dependencies describing changes in physical and mechanical ...
State analysis of overworked and underworked parting between contiguous seams and during their simultaneous top-down mining
(National Mining University, 2016-06-30)
Purpose. Investigating conditions of conducting and maintaining excavation works during mining of seam . Evaluating probability of parting rocks stability loss in terms of top-down mining of two contiguous seams in a ...