Now showing items 1-6 of 6
Assessment of coal quality on the site “Uspenivska No 2” in Western Donbas based on the statistical analysis of its chemical and technological properties
(National Mining University, 2016-12-30)
Purpose. To conduct a comprehensive assessment of the coal seams’ quality on the site “Uspenivska No 2” in Lozivskyi coal-bearing area of the Western Donbas industrial district; establish their grade composition according ...
Physical and mathematical modelling of the conditions of coal and gas outbursts
(National Mining University, 2017-09-30)
Purpose. Experimental study and theoretical modeling of conditions initiating destructive processes and development of gas generation in coals. Methods. Analysis, generalization and statistical processing of experimental ...
Research into stress-strain state of the rock mass condition in the process of the operation of double-unit longwalls
(National Mining University, 2020-06-30)
Purpose. To substantiate changes in stress-strain state of rock mass in the process of long-pillar mining with the help of double-unit longwalls while evaluating stress of a mine field in terms of Lvivvuhillia SE mine. Methods. ...
Risk assessment of radionuclide contamination spreading while flooding coal mined-out rocks
(National Mining University, 2020-12-30)
Purpose. To investigate pathways and concentrations of the most dangerous radionuclides entering the surface and groundwater in terms of hydrodynamic situation re-establishment in the zone of radiation-hazardous mine field ...
Technical and technological aspects of the coal mine closure based on the geomechanical component assessment
(Dnipro University of Technology, 2021-09-30)
Purpose. Development of a comprehensive methodology for assessing the state of mine workings based on the analysis of their contour displacement patterns when solving the problem of minimizing the risks during the closure ...
On the possibilities to apply indices of industrial coal-rank classification to determine hazardous characteristics of workable beds
(Dnipro University of Technology, 2021-06-30)
Purpose is to identify behaviour of the graded indices as well as their correspondence to grades, groups, and subgroups of similar coal metamorphic degrees to determine hazardous characteristics of workable beds while ...