大采高超长综放工作面采场矿山压力控制技术研究

综采放顶煤工作面采高的增大,会引起支护高度相应加大,支架重心提高,使支架容易发生滑倒与倾斜。采高增大造成煤壁高度加大,在矿山压力的作用下容易发生较大范围和深度的片帮。支架稳定性降低与煤壁片帮增加了端面冒顶的危险性,因此支架、煤壁及端面顶煤的稳定性控制技术成为大采高综放工作面的高产高效回采的基本保障。

Mining Height Long Caving Mining Stope Pressure Control Technology

Face coal caving mining height increases,will cause a corresponding increase bracing height,frame center of gravity to improve,so prone to slip and tilt bracket.Wall caused by coal mining height increase height increase,under the effect of the pressure in the mines susceptible to a broader range and depth of the film to help.Stent stability was reduced and coal wall-end chip to help increase the risk of roof fall,so stent,coal wall and end-top coal mining stability control technology as the big High-caving ...