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Information × Registration Number 0215U002229, 0111U005128 , R & D reports Title The definition peculiarities of the change of properties of mining rocks and the 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 02-03-2015 Organization The Polyacov Institute of Geotechnical mechanics of NAS of Ukraine popup.description2 The complex of the main geological processes that lead to natural and man-made phenomena, deformations. The basic laws of formation of strains of dehydration, lithostatic and gas-dynamic types at different stages and substages lithogenesis. Processes such as the outburst sandstones appear on only one substage, coal outburst appears in two or more substages, and some, such as violations - at all stages lithogenesis. The nature of the rock destruction complex structure a significant impact on the micro level has a defect density structure of the rock in the form of microcracks in the mineral grains. It is proved that the maximum effect before destroying explosion occurs when forming cones wavefronts generated in the case where the velocity of detonation of the explosive charge in the elongate cavity is greater speed and shear waves in the environment. It was found that during the production by drilling and blasting outburst layers, the flow of gas-dynamic phenomena is more intense than when Combine permeability in the initial period of the release process when blasting is 1.5 times higher, the maximum filtration rate of methane above 17.3 times; wherein the total flow of gas dynamic effects during reduced by 30%. It was found that the processes of gas filtration and change of the stress-strain state of the gas-dynamic phenomena in the flow near a tectonic disturbance characterized by changes in the filtration rate of methane at the front of destruction by a quadratic, and permeability of coal - for back-quadratic dependence with the wave ahead of the wave bundle pressure drop of methane . The effect of stress in the surface area of excavation on the performance resistance (contact resistance), mechanical destruction of rocks at a variable voltage ratio. It is possible to determine the power and energy parameters of the fracture process naturally strained rocks. The interrelation of the joint operation of natural, man-made and broken geological media and their influence on the change of water balance and groundwater regime, the stability of mine workings in terms of man-made irrigation. Mathematical models and methods of prediction of water balance and rising groundwater levels within the mining region. Scientific and practical results allow to predict the stresses and strains of the array to determine the conditions of stability loss geotechnical and geomechanical systems. Research Methods: field observations, laboratory and experimental tests, mathematical and computer modeling, technical and economic analysis. Research work materials intended for use by mining companies and design organizations of Ukraine. Product Description popup.authors Єфремов Е.І. Ікол О.О. Іщенко К.С. Ананьєва О.І. Антіповіч Я.В. Бабій К.В. Баранов В.А. Бистріцька З.П. Бубнова О.А. Васільєв Д.Л. Ворон О.А. Дякун Р.А. Зайцев М.С. Захарченко В.Г. Карамушка О.О. Коломієць О.М. Кратковський І.Л. Круковська В.В. Левченко К.С. Логвіна Л.А. Мінєєв С.П. Маметова Л.Ф. Нікіфорова В.О. Ніколенко Є.В. Пашенко П.С. Пащенко С.Г. Савінов В.О. Світлічний В.М. Сердюкова С.П. Соловьова Т.М. Тинина С.В. Халайбаш В.М. Хворостян Л.В. Четверик М.С. Шевченко О.І. Шматовський Л.Д. popup.nrat_date 2020-04-02 Close