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Information × Registration Number 0209U006437, 0106U003275 , R & D reports Title The method and techniques of wave-pulse water injection to coal layer for one degasification at layer quarry boring. popup.stage_title Head Bulat Anatoliy Fedorovich, Registration Date 16-02-2009 Organization The Polyacov Institute of Geotechnical mechanics of NAS of Ukraine popup.description2 The parameters of method of the pulse-wave injection of liquid in a coal array are grounded. The conception of diminishment of internal friction in a coal array and his friction with lateral breeds at the hydro-impulsive injection of liquid in a coal array is formulated. The conformities to law of development of cracks are set at injection of liquid in a coal array – the basic rejection action for the increase of safety of mining works. The experimentally-analytical engineering method of the determination of pulse size and oscillation frequency of liquid pressure, created by the cavitations generator, is developed.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close