摘要
以西曲矿29205工作面为研究对象,分析了采空区下近距离煤层回采巷道顶板破坏机理,提出了不同煤层间距条件下采取U型钢架棚支护和锚网索钢带联合支护两种支护方案,并在29205工作面回风巷进行实践。结果表明,该支护方案的实施有效地保证了该回采巷道的稳定性,支护效果较好。
Analyzed the roof failure mechanism of the near-mechanized mining roadway under the goaf, and take the 29205 working face of the Xiqu Mine as the research object. U-steel frame supports and anchor meshes are proposed under different coal seam spacing conditions, and carried out in 29205 working face return air lane, the result shows that the implementation of this support scheme can effectively guarantee the stability and support effect of the mining roadway is good.
作者
侯拴贵
Hou Shuan-gui(Xiqu Mine, Shanxi Xishan Coal and Electricity Co., Ltd., Shanxi Taiyuan 030200)
出处
《山东煤炭科技》
2019年第2期41-42,45,共3页
Shandong Coal Science and Technology
关键词
近距离煤层
回采
巷道
支护
close coal seam
mining
roadway
support
