| 摘要 |
<p>The present invention relates to a pre-tension type permanent anchor apparatus which can increase mounting performance greatly by effectively applying a pre-tensile force to a tension member as the mounting pin of a mounting head arranged at the fore-end of the tension member protrudes outward owing to the pull of the tension member to penetrate and be forcibly inserted into the inner wall of an anchor hole or be fixed to a wide grounding area. The pre-tension type permanent anchor apparatus according to the present invention comprises: two or more tension members installed in a lengthwise direction inside an anchor hole on the ground; and mounting heads arranged at the fore-ends of the tension members to be mounted on the anchor hole. The mounting heads include: a mounting body; a moving block installed inside the mounting body in a lengthwise direction to be able to move; and two or more mounting protrusions capable of moving into and out of the mounting body in connection with the movement of the moving block. The moving block is moved by the pull of the tension members. The mounting protrusions protrude outward along the guide hole of the mounting body and penetrate the inner wall of the anchor hole for fixation as the inclined planes of the mounting protrusions in contact with the tapering surface of the moving block interlock with the movement of the moving block. The mounting body has a maintenance unit installed thereon to grab one or more pulled tension members among the tension members as the pulled tension members have been pulled by respective division wedges, so as to prevent the movement of the moving block and mounting protrusions.</p> |
