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Information × Registration Number 0220U103532, 0117U006753 , R & D reports Title Resource-saving geotechnical and hydrodynamic parameterization extraction of low-capacity mineral resources in technogenically loaded environments popup.stage_title Head Sotskov Vadym O, Registration Date 19-10-2020 Organization National Technical University Dnipro Polytechnic popup.description2 the offered technique of a choice of rational drainage parameters used in the conditions of selective working off of coal seams depending on parameters of a partial backfilling; it was found that at a concentration of coal dust over 20 mg / m3 the presence of dust respirators allows to provide only a moderate degree of risk of exclusion of occupational diseases. At the same time excess of submask concentration of dust in a respirator to 18% at maximum concentration limit of 2 mg / m3 is fixed. The optimal method and parameters of partial backfilling of the waste space depending on capacity and physical and mechanical properties of excavated rocks are defined; A method for determining a set of effective configurations of technological solutions was developed that provide acceptable functionality of the coal mining process with the use of selective excavation   Product Description popup.authors popup.nrat_date 2021-03-17 Close