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Information × Registration Number 0213U007603, 0111U005128 , R & D reports Title The defenition peculiarities of the change of properties of mining rocks and state of rock conductiong the mining working and taking effect of the different physical fields popup.stage_title Head Chetverik Mikhail Sergeevich, Доктор технічних наук Registration Date 22-03-2013 Organization The Polyacov Institute of Geotechnical mechanics of NAS of Ukraine popup.description2 Identified two sub diaphthorite metamorphic rocks, which together with the underlying andiaphthorite rocks are three degrees state of the substance of their transformation. The basic conditions for decompression of rocks and reduce their strength, this metasomatism and tectonic factor, have a qualitative correlation with depth. The technique and experimental studies to establish the influence of parameters of shock rock on the intensity of their grinding. The empirical relations median size of fines on the speed and angle of the free kick ruined monomineralic fine specimens of the breed. The technique of light-optical studies of fine fragments produced by the destruction of rock dynamic loads, which allows, based on quantitative parameters of particle size distribution curves of products of destruction of micron size, to assess the nature of the transmission of the explosion energy multimineral destructible surroundings. The main, most important technological and geological factors affecting the occurrence of non-stationary processes in gas-saturated massif, which allowed the development of methods for calculating the parameters of the related processes of stress-strain state, desorption and filtration of methane in the broken area of gas-saturated rocks, unsteady filtration of methane in the solution and the flow of gas dynamic phenomena and gas filtration and actions explosion in gas-saturated array during production drilling and blasting method. Grounded perspective technologies of extraction of iron ore in deep open pits. The methods of comparing promising technologies for the extraction of ore at optimal minimum energy costs are developed. For the conditions of the mine working of deep pits Krivbass design methods linkages capacity quarry on ore, overburden and separation plant, depending on the value of the rock mass that will inform the impact of technology ereseparation ore at quarry on these facilities, calculate the percentage of reduction of losses and dilution of the mineral, the volume overburden removal, improving the quality characteristics of the ore. Product Description popup.authors Єфремов Е.І. Ікол О.О. Іщенко К.С. Бабій К.В. Баранов В.А. Дякун Р.А. Кіяшко Ю.І. Карамушка О.О. Косенко В.І. Круковська В.В. Маметова Л.Ф. Нікіфорова В.О. Пащенко П.С. Петренко В.Д. Светличний В.М. Четверик М.С. popup.nrat_date 2020-04-02 Close