METHOD FOR WORKING STEEP COAL SEAMS HAVING TENDENCY TOWARDS GAS DYNAMIC EFFECTS

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to underground development of coal seams. the purpose is to reduce the labour intensity and increased load on the treatment of slaughtering. u043fu0440u043eu0445u043eu0434u00a0u0442 u0432u0435u043du0442u0438u043bu00a0u0446u0438u043eu043du043du044bu0439 and u043eu0442u043au0430u0442u043eu0447u043du044bu0439 u0448u0442u0440u0435u043au0438. form the u043fu043eu0447u0432u043eu0443u0441u0442u0443u043fu043du044bu0439 treatment face to u043du043eu0440u043cu0430u043bu0438 to u0448u0442u0440u0435u043au0430u043c. the hollow u0443u0433u043bu00a0 u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u044eu0442 cycles, for each cycle of grooves cut u0443u0441u0442u0443u043fu044b length u0437u0430u0431u043eu00a0.when the notch u0443u0433u043bu00a0 between adjacent u0443u0441u0442u0443u043fu0430u043cu0438 u043eu0444u043eu0440u043cu043bu00a0u044eu0442 u0446u0435u043bu0438u043au0438 height within the size limit u0441u043eu0441u0442u043eu00a0u043du0438u00a0 zone coal-bed. between u0443u0441u0442u0443u043fu0430u043cu0438 set horizontally u0443u0433u043bu0435u0443u043bu0430u0432u043bu0438u0432u0430u044eu0449u0438u0435 shelves on the width and shape of the power on the cushions of a batted u0443u0433u043bu00a0 angle natural repose. above and below u0443u0433u043bu0435u0443u043bu0430u0432u043bu0438u0432u0430u044eu0449u0438u0445 regiments are u043eu0442u043au043bu043eu043du00a0u044eu0449u0438u0435 shelves.u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 seizure u0443u0433u043bu00a0 in u0443u0441u0442u0443u043fu0430u0445 and transport it to u043eu0442u043au043bu043eu043du00a0u044eu0449u0438u043c shelves. after the excavation of u0443u0433u043bu00a0 in u0443u0441u0442u0443u043fu0430u0445 u043fu043eu0433u0430u0448u0430u044eu0442 u0446u0435u043bu0438u043au0438 from bottom to top. 1 il. with with