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Abstract Aiming at the 12207 working face of Julong Mine, which is located at the deepest part of the mine, with high gas content and the gas pressure. The stepping drilling site gas drainage technology was used to extract the mining face. This technology can increase the extraction time of the mining face, shorten the drilling time, and improve the single-pass level. At the same time, it can increase the gas drainage concentration and extraction volume of the mine, effectively reduce the gas content and pressure in the coal seam and ensure the gas content does not overrun during the mining process.
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