摘要
为解决近距离煤层群下层煤综采工作面过上层煤集中煤柱时压架的问题,以神东哈拉沟煤矿22207综采工作面为研究对象,分析其过上层煤采空区集中煤柱期间的动载矿压显现特征,提出了采取工作面调斜、调整周期来压、控制煤机牵引速度和工作面推进速度、控制采高等措施,预防了综采工作面压架事故,保证了矿井安全生产。
In order to solve the support crushing problem when the fully-mechanized mining face in the lower coal seam passing through the concentration coal pillars in the upper coal seam,taking No. 22207 fully-mechanized mining face in Halagou Coal Mine as the research object,the dynamic loading characteristics of mine pressure during the mining face passing through the concentration coal pillars of upper coal seam were analyzed,the measures of adjusting the slope of working face,controlling the periodic weighting,regulating the advancing speed of working face and controlling the mining height were carried out,the support crushing accident of fully-mechanized mining face was prevented and mine safety production was ensured.
出处
《陕西煤炭》
2017年第4期58-60,71,共4页
Shaanxi Coal
关键词
近距离
大采高
集中煤柱
动载矿压
顶板控制
close distance
large mining height
concentration coal pillar
dynamic loading mine pressure
roof control
