【摘要】 为进一步提高特厚煤层综放开采煤炭资源回收率，以不连沟煤矿6号煤层综放工作面为研究对象，通过钻孔窥视分析顶煤冒放性，结合现场放煤效果，提出了协同精细化放煤工艺、初采分时段放煤、端头过渡段最大化放煤和末采限厚放煤等放顶煤工艺参数优化技术措施，并进行了现场应用。应用结果表明，工作面资源回收率提高了5.6%,减少了资源浪费，提高了矿井经济效益。更多还原

【Abstract】 In order to further improve the recovery rate of coal resources in the fully-mechanized mining of ultra thick coal seams, the fully-mechanized caving face of No.6 coal seam of Bulian Gou Coal Mine was taken as the research object, by analyzing the top coal caving ability through drilling observation and combining with the on-site coal caving effect, the optimized technical measures for top coal caving process parameters such as collaborative fine coal caving technology, initial mining staged coal caving, maximum coal caving in the end transition section, and final mining limited thickness coal caving were proposed and applied on-site.The application results show that the resource recovery rate of working face has increased by 5.6%,reducing resource waste and improving the economic benefits of mine.更多还原