1) wedge pipe bolt for roof support
楔管式锚杆护顶
1.
The employment of dip retreat and wedge pipe bolt for roof support showed that the permissible exposed area of mine goaf increased from 50m2 to 258-500m2, thus greatly reduced the ore loss and dilution.
本文以理论研究为基础,密切结合生产实际,采用沿倾斜后退式回采顺序和楔管式锚杆护顶技术,使采空区允许暴露面积只有50m~2左右,扩大到258～500m~2,大幅度地降低了矿石损失与贫化,获得显著的经济效益。
2) Wedge tubular anchor
楔管式锚杆
3) slot-and-wedge fastening
楔缝式锚杆支护
4) Wedge-and-pipe bolt
楔管锚杆
5) wedge bolt
楔式锚杆
1.
Therefore,designs reclaimable wedge bolt which can reduce the cost,avoid false construction and increase the recovery.
因此,设计了可回收楔式锚杆,降低了费用,避免了假性施工,提高了回收率。
6) sliding wedge bolt
双楔式锚杆
补充资料：采用可拆卸预应力锚杆技术进行高层建筑基坑护坡
采用可拆卸预应力锚杆技术进行高层建筑基坑护坡
霹 采用可拆卸预应力锚杆技术进行高层建筑基坑护坡
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条