摘要
针对大同“两硬”条件5m左右特厚煤层一次采全高工作面顶板情况,对顶板进行弱化处理的原因及必要性进行了讨论,计算了深孔爆破人工强制放顶的参数,并对其在生产实践中的应用效果进行了分析总结。
Aimed at the control of roof sheet in mining over height in one times under the conditions of 'two hard', the necessariness and the reason of weaking roof is discussed, the parameter of manual enforcement roof caving is caculated, and the application effect is summariaed.
出处
《华北科技学院学报》
2005年第2期42-45,共4页
Journal of North China Institute of Science and Technology
关键词
“两硬”条件
5米煤层
采全高
顶板控制
the two hard contitiom
mining overall 5 height coal seam
control of roof sheet
