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Abstract In order to mine upward coal resources safely and effectively, according to the conditions of coal seam occurrence and mining status quo of a certain mine, the "three band" judge method,the ratio discrimination method and the coal seam mining time interval analysis method were used to analyze the feasibility of No.5 coal seam upward sublevel caving mining. Special safety technical measures were formulated. The upward sublevel caving mining of No. 5 coal seam was successful, providing a reference and model for mining under similar conditions.
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