CUT-AND-FILL METHOD FOR THICK STEEP FIRE-HAZARDOUS SEAMS MINING

摘要

use: in mining steep seams in the processing of powerful fire with the establishment of the space.the essence of the u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0: flexible thin up further from the soil reservoir in the upper half of the floor, u043eu0431u0440u0430u0437u0443u00a0 w - shaped contour of the flexible u043fu0435u0440u0435u043au0440u044bu0442u0438u00a0 at all the top half of the floor, and began u0443u0433u043bu00a0 under flexible in the application of u0432u0437u0440u044b - u0432u043eu0433u0438u0434u0440u043eu0442u0435u0445u043du043eu043bu043eu0433u0438u0438 in upper u043fu043eu0434u044du0442u0430u0436u0430u0445 lead ahead in soil stratum , u043fu043eu0434u0430u0432u0430u00a0,u0437u0430u043au043bu0430u0434u043eu0447u043du044bu0439 material on the flexible overlay closer to the middle part of the reservoir on the fly of, and in the lower half of the hollow floor u0443u0433u043bu00a0 under flexible in the lead with intelligence u0440u0435u0436u0435u043du0438u0435u043c in the middle part of the reservoir to its power, and the proactive work in each of the following u043fu043eu0434u044du0442u0430u0436u0435 u0441u043eu0441u0442u0430u0432u043bu00a0u0435u0442, at least one u0437u0430u0445u043eu0434u043au0443 on u043fu0440u043eu0441u0442u0438u0440u0430u043du0438u044e the reservoir. 6).