METHOD FOR WORKING THICK STEEP AND INCLINED FIRE HAZARDOUS COAL SEAMS

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to underground development of fire u043fu043bu0430u0441u0442u043eu0432u0443u0433u043bu00a0. the purpose of enhancing safety by u0443u043bu0443u0447u0448u0435u043du0438u00a0 quality u043fu043eu0434u0431u0443u0447u0438u0432u0430u043du0438u00a0 lower side u043cu0435u0436u044du0442u0430u0436u043du043eu0433u043e u0446u0435u043bu0438u043au0430 rock roof by directed and management u043bu00a0u0435u043cu043eu0433u043e their u0440u0430u0437u0440u0443u0448u0435u043du0438u00a0, as well as to reduce the loss u0443u0433u043bu00a0 in u043cu0435u0436u044du0442u0430u0436u043du043eu043cu0446u0435u043bu0438u043au0435.u043fu0440u043eu0445u043eu0434u00a0u0442 preparatory and u043du0430u0440u0435u0437u043du044bu0435 a seizure of the floor u043eu0441u0443u0449u0435u0441u0442u0432u043fu00a0u044eu0442 u043du0438u0441u0445u043eu0434u00a0u0449u0438u043cu0438 horizontal u0441u043bu043eu0447u043cu0438 from u0432u0438u0441u00a0u0447u0435u0433u043e boca reservoir under the u043eu0431u0440u0443u0448u0435u043du043du044bu043cu0438 rock of roof. in the top of the u0431u0443u0440u00a0u0442 explosive wells. in the process of treatment grooves form u043cu0435u0436u044du0442u0430u0436u043du044bu0439 barrier coal deflection.the bottom board u043cu0435u0436u044du0433u0437u0436u043du043eu0433u043e u0446u0435u043bu0438u043au0430 form the angle of repose u043eu0431u0440u0443u0448u0435u043du043du044bu0445 rock roof hollow point u0443u0434u043bu0438u043du00a0u044eu0449u0438u0445u0441u00a0 layers as u043du0438u0441u0445u043eu0434u00a0u0449u0435u0439 excavate the stratum. in the process of u0432u044cu0435u043cu043au0438 each u0441u043bu043eu00a0 under u043cu0435u0436u044du0442u0430u0436u043du044bu043c entirely u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 destruction of roof stratum u0432u0437u0440u044bu0432u0430u043du0438u0435u043c wells.with the layers under the u043cu0435u0436u044du0442u0430u0436u043du044bu043c entirely until now boca reservoir u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u044eu0442 however u043cu0435u0436u044du0442u0430u0436u043du043eu0433u043e u0446u0435u043bu0438u043au0430 installation u0430u043du043au0435u0440u043eu0432 in its bottom side. u043du0438u0436u0435u043bu0435u0436u0430u0449u0443u044e part floor earning under u043cu0435u0436u044du0442u0430u0436u043du044bu043c entirely, u043fu043eu0434u0431u0443u0447u0435u043d of u043eu0431u0440u0443u0448u0435u043du043du044bu043cu0438 wiring of roof stratum. 3).