| 摘要 |
PURPOSE: A permanent anchor 3 is provided to improve safety by integrally forming a steel wire in a fixing unit and to minimize complex members for fixing the steel wire. CONSTITUTION: A permanent anchor 3 comprises steel wires(11), a fixing unit(12), and protective tubes(13). The steel wires are formed by twisting multiple wires. One end of the steel wires is fixed to the ground, and the other ends are exposed. The fixing unit accepts the other ends of the steel wires. A concavo-convex part(121) is formed on the outer surface of the fixing unit. The other ends of the protective tubes are connected to one end of the fixing unit and cover the outer surface of the steel wires. |
