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Information × Registration Number 0214U000923, 0114U004423 , R & D reports Title Provision of scientific and technical aid during the acceptance testing of method for decontamination and gas-dynamic activity reducing in the bottom of overhead longwalls on SE "Mine named. F.E. Dzerzhinsky" popup.stage_title Head Sofiyskij Konstantin Konstantinovich, Доктор технічних наук Registration Date 08-10-2014 Organization The Polyakov Institute of geotechnical mechanics of NAS of Ukraine popup.description2 Object of research - the processes occurring in the rock mass during hydrodynamic influence on him through wells drilled from the field haulage drift through the rocks of the roof of the coal seam. The aim of the research is to assess the effectiveness of the method of degassing and reduce gas-dynamic activity of coal seams l7в- "Pugachevka" and k8-"Kamenka" at the bottom of the lava. Research methods and analysis, mining experiment. Defined dynamics of changes of average daily concentration of methane in the gas mixture and the coefficients degassing and intensification of degassing the processed array. The number extracted from the borehole coal and gas defines the radii of the disintegrated coal around the well and set the parameters of hydrodynamic effects: number of production wells -1 piece; pressure process, impact- 3-5 MPa; the pressure in the borehole after reset -0 MPa; the cycle time of -4-5 minutes; is the coefficient of degassing of the treated area > 0,45; is the radius of the disintegrated coal -13.7 to 21 m. Mining in the treated areas by hydrodynamic effect of the coal seams l7в-"Pugachevka" and k8- "Kamenka" was realized without signs of outburst of coal and gas. HYDRODYNAMIC EFFECTS, PRODUCTION WELLS, THE AVERAGE CONCENTRATION, THE RATE 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