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Information × Registration Number 0214U005136, 0113U003321 , R & D reports Title Rendering of the scientific and technical help at hydrodynamic influence for prevention of sudden outbursts at baring of coal seams by crosscuts, degasification and decrease gasdynamic activity in longwall bottom popup.stage_title Head Sofiyskij Konstantin Konstantinovich, Доктор технічних наук Registration Date 14-02-2014 Organization The Polyakov Institute of geotechnical mechanics of NAS of Ukraine popup.description2 Object of researches - the processes in the rock mass under hydrodynamic inpact it through of a borehole drilled from the field haulage drift through the rocks on the ground coal seam. Purpose of work - establish the fundamental possibility of preventing sudden coal and gas when mining coal seam k8-"Kamenka" on the horizon. 1160 m IE "Mine name is Severnaja" with the use of the hydrodynamic effects through one borehole and testing of process parameter (minimum distance from the bottom of the lower corridor to technological borehole) during degassing and lower gas-dynamic activity of coal seams in the lower parts of the work face. Research methods - analytical, mine experiment. On the basis of experimental studies of the process of mine hydrodynamic effects on the coal seam k8-"Kamenka" on the horizon 1160 m through borehole determined technological dynamics of the daily average concentration of methane in the outgoing air jet area on which was calculated effective radius of influence of the well and the coefficients degassing and intensification of degassing processed array. By quantity of coal extracted from the borehole determined radius around the borehole disintegrated coal and set parameters of the hydrodynamic impact for degassing the bottom of work face: - Number of technological wells piece. one; - Process pressure effects, 5-6 MPa; - Amount of coal recovered from zone, 0.2%; - Coefficient of degassing of the treated area> 0.45; - Intensification of degassing coefficient 1.72. Testing of treated areas coalbed k8-"Kamenka" conducted without the signs of the gas-dynamic phenomena. HYDRODYNAMIC IMPACT, TECHNOLOGICAL BORE, AVERAGE DAILY CONCENTRATIONS, DEGASSING OF COEFFICIENT, COEFFICIENT OF INTENSIFICATION OF DEGASSING. Product Description popup.authors Агаєв Руслан Агагулуєвич Власенко Василь Вікторович Гаврилов Вячеслав Іванович Петух Олександр Петрович Софійський Костянтин Костянтинович popup.nrat_date 2020-04-02 Close