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Information × Registration Number 0213U005211, 0112U001846 , R & D reports Title Rendering scientifically - technical assistance at conducting of acceptance testings of method of degasification and decrease of gasdynamic activity in bottom of overhand longwalls on the separate factory "Mine of Severnaya" on state enterprise the factory "Dzerzhinskugol" popup.stage_title Head Sofiyskij Konstantin Konstantinovich, Доктор технічних наук Registration Date 27-03-2013 Organization Institute of Geotechnical mechanics of NAS of Ukraine popup.description2 The abstract The report on scientifically research work: 22 pages, 4 fig., 2 tab., 5 radiants. Object of studies - the processes which are taking place in a rock mass, at hydrodynamic affecting on it through the wells drilled from development workings through rocks of soil or roof covering on a bench coal. The operation purpose - working of arguments of an expedient of degasification and decrease of gasdynamic activity of a bench coal in bottom of overhand longwalls hydrodynamic affecting in the conditions of formations l7в - "Pugachevka" and k8 - "Kamenka". Methods of studies - analytical, mine experimental investigations. On the basis of mine experimental investigations of process of hydrodynamic affecting on bench coals l7в - "Pugachevka" and k8 - "Kamenka" of horizon. 1160 m through technological wells in bottom of longwalls №65-1160 m and №95-1160 m accordingly, has been instituted a time history of average daily concentration of methane in a gas-air mixture before hydrodynamic affecting on mining massif, and also sizes of bands of their treating. By results of definition of the floor spaces of bands of treating and variation of average daily concentration of methane taking into account background concentration and daily quantity of air on return airs from leases coefficients of degasification of bench coals in bands of their treating are instituted: on a bench coal l7в - "Pugachevka" at affecting through technological well kд = 0,41, on a bench coal k8 - "Kamenka" at affecting through well №1 kд = 0,46, at affecting through technological well №2 - 0,45. Arguments of hydrodynamic affecting on bottom of overhand longwalls are erected: Quantity of technological wells, piece 1; Quantity of the extracted coal from a band of 0,2 %; Coefficient of degasification of the treated band> 0,45; Coefficient of intensity of degasification not less than 1,5. Coal-face works are spent without indications of gasdynamic appearances. HYDRODYNAMIC AFFECTING, TECHNOLOGICAL WELLS, AVERAGE DAILY CONCENTRATION, DEGASIFICATION COEFFICIENT. Product Description popup.authors Агаєв Руслан Агагаєвич Власенко Василь Вікторович Гаврилов Вячеслав Іванович Петух Олександр Петрович Силін Дмитро Павлович Софійський Костянтин Костянтинович popup.nrat_date 2020-04-02 Close