摘要
分析了掩护梁角度对顶煤破断角及放煤口上方各种拱形结构平衡特征的影响 ,得出了综放支架掩护梁角度是顶煤回收率的重要影响因素的结论。
Using theoretical analysis and simulation experiment ,the influence of gob shield angle on top coal fracture angle and the equilibrium feature of arched structure above gob shield have been studied .The result indicates that the gob shield angle is one of the important factors for top coal recovery ratio.
出处
《山西煤炭》
2003年第1期18-19,共2页
Shanxi Coal
关键词
综放支架
掩护梁
角度
顶煤
回收率
煤拱结构
稳定性
fully-mechanized sublevel caving supporter
gob shield angle
top coal recovery ratio
