| 摘要 |
An underground anchor is provided to improve the extension force of an anchor to reduce the manufacturing costs by configuring a reinforcing member arranged with a linear member as a cone shape. An underground anchor comprises a mounting port(11), and a tendon(21). The mounting port fixes an anchor on the ground surface. The tendon transfers the extension force applied from the mounting port by connecting the mounting port with an anchor body(31) to the anchor body. The mounting port includes a fixing unit fixing one end unit of the tendon. The anchor body includes a fixing unit fastening the other end of the tendon. The tendon is composed of more than one PC steel wire(22). A linear member is arranged in a spiral shape through a predetermined length in the direction of the mounting port from the anchor body, on the periphery of the tendon. The arranged linear member is shaped like a cone narrowing from the anchor body to the mounting port. A grouting member can be injected into the tendon since a cover member is not installed at the periphery of the tendon. |
