U形拱棚配锚索在盘区巷道支护中的应用

The research on the Support of U-type arch and rope-bolt in panel

通过对大同煤矿集团公司雁崖矿14#层414盘区巷道变形、破坏机理的分析和研究,根据锚索和U型钢支架对巷道的不同支护原理,充分利用锚索的高预应力和U型钢棚的可缩性的优点,“抗、让”结合,既有效控制了顶板离层,又利用U型钢棚的可缩性对围岩应力卸载,提高了巷道稳定性,在实际应用中取得成功。

The paper analyses the deformation of channel, the mechanism of destroying, according to the different bolt principle between the rope and the U-steel holder to the channd. It fully utilizes the merits of high prestressing force and shrink, combining the ＂resist＂ and ＂dodge＂, it has an effect in controlling a roof being away from a tier, makes use of plasticity of U-type arch, improves the stability to surrounding rock, it has got success in actual application.