为提高塔山矿石炭系特厚煤层顶煤采出率,运用数值分析、相似模拟分析、实测统计分析以及工业性试验等方法,研究了大采高综放开采工艺中最为关键的机采高度及放煤工艺问题。研究及实践结果表明,在塔山矿8105工作面的地质开采条件下,合理机采高度为4.0～4.3 m,合理放煤步距为一刀一放0.8 m,合理放煤方式为多轮间隔顺序多口放煤。

In order to improve the top coal recovery rate of the thick seam in Carboniferous System of Tashan Mine, the numerical analysis, similar simulation analy sis, site measured statistical analysis, industrial trial and other method were applied to study the key mechanical mining height and top coal caving technology in fully m echanized top coal caving mining technology with the high mining height. The study and practical results showed that under the geological and mining conditions of No.8 105 coal mining face in Tashan Mine, the rational mechanized mining height was 4.04 .3 m, the rational top coal caving step distance was 0.8 m per cutting and caving a nd the rational top coal caving way was multi round interval sequence and multi window caving.

“十一五”国家科技支撑计划重点资助项目(2008BAB36B01)；