摘要
应用经验估算法、实测统计法、"短砌体梁"理论、"台阶岩梁"理论等方法分别对大采高支架工作阻力进行分析与估算,最终得出大采高支架中心距与工作阻力的定量关系。该支架不仅满足了安全生产要求,而且更加有利于抑制支架前顶煤冒落和减小煤壁压力。
The working resistance of large mining height support is analyzed and estimated by means of empirical estimation method, practical statistical method, ＂short masonry beam＂ theory, ＂step rock beam＂ theory and so on.Finally, the quantitative relationship between center distance and working resistance of large mining support is obtained. The support not only meets the requirements of safety production, but also helps to restrain the roof coal caving in front of the support and to reduce the coal wall pressure.
作者
闫建军
Yan Jianjun(Shennan＇ao Coking Coal Co.,Ltd.of Shanxi Xiangning Coking Coal Group,Linfen Shanxi 042105)
出处
《机械管理开发》
2018年第6期72-73,共2页
Mechanical Management and Development
关键词
特厚煤层
大采高
开采支架
工作阻力
extra thick coal seam
large mining height
mining support
working resistance
