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Information × Registration Number 0213U000810, 0111U008374 , R & D reports Title The physical design of dynamic destruction maximum tense coal with formation of the micronized factions near-by tectonic violation popup.stage_title Head Dyakun Roman Anatolievich, Registration Date 28-03-2013 Organization The Polyacov Institute of Geotechnical mechanics of NAS of Ukraine popup.description2 Object of study - modeling of rock pressure. Purpose - physical simulation to show the influence of unsteady redistribution of the stress-strain state in the corner of a rock mass during mining operations near tectonic disturbances on the process of dynamic fracture of coal to the level of micronized fractions. Research methods - analytical review, technical analysis, comparative assessment and target setting research.First conducted laboratory studies of dynamic fracture is extremely busy with the formation of micronized coal fractions near a tectonic disturbance due to rapid unloading of coal seam coal seam compression array of host rocks. On the model found that the discharge of the compressive stresses near a tectonic disturbance in a high stress concentration at the time of the order of 0.06 s or less is 20-40% of the vertical stress before unloading. The proposed modeling method is extremely busy unloading coal is increasing visibility into the state of stress layers surrounding rocks, which are under the influence of man-made and tectonic zones of high rock pressure. It is shown that the radially-layered dynamic destruction of extremely intense coal to form micronized fractions near a tectonic disturbance can be implemented at the level of the average compressive stress of coal 40-70 MPa, which corresponds to the maximum stress state of the real mountain outburst mines. Product Description popup.authors Дякун І.Л. Дякун Р.А. Подоляк К.К. Рудь В.П. Світличний В.М. popup.nrat_date 2020-04-02 Close