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Information × Registration Number 0206U000976, 0104U003806 , R & D reports Title The stady of phase state and methane content in fossil coal to i increase of laboour safety level (I stage) popup.stage_title Head Alexeyev Anatoly Dmitrovich, Registration Date 09-02-2006 Organization Institut of physies of mountain processes popup.description2 The physical model of the system is developed coal-gas. Conformities to the law of transformation of the closed pores were received in opened and development of cracks, that determine appearance of instability in the system coal-gas at passing of wave of unloading. The method of determination of potential volume methane and phase state of methane in the system of the opened and closed pores in a corner from data of NMR - 1H is developed. First on the basis of analytical and experimental researches is developed and the method of determination of time of formation of dangerous concentration of methane in the preparatory making was approved, that sorption properties of coal are taken into account, parameters of porosity, diffusions of methane from a coal depending on a temperature. That approved method of the acoustic sounding of mining array is developed, that joins to the mountain making, for determination of sizes of area of active effluence of gases in the produced space. It is developed and the standard of organization of Ukraine is ratified "Prevention of the sudden troop landing of coal and gas at the shield coulisse of the steep coal layers" SOU 101.00171144.004-2004, with the control of efficiency after the kinetic parameters of process of diffusion and data NMR - 1H.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close