There have been some problems such as low coal recovery and difficult management after coal mining in steep seam mining method.
急倾斜煤层的回采一直存在着回采率低、采后难以管理等实际问题。
Base on the site observation and experimental research, the paper studied the top coal structure for the top coal caving mining in steep inclined seam sections.
在现场观测及实验研究基础上，对急倾斜水平分段放顶煤开采过程中顶煤体结构进行了研究。
The practice on sublevel combined mining in steep seam is approached and the advantage of it is analyzed. It is an efficient way to realize the high efficiency production in steep seam in coal mine.
介绍了急倾斜煤层小阶段联合开采的实践与探索，分析了小阶段联合开采的优越性，认为该方法是实现急倾斜矿井高产高效的有效途径。
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