Method for anchor retensioning, anchor head structure, and hole anchor head

摘要

PROBLEM TO BE SOLVED BY THE INVENTION The object of the present invention is to solve the problem of the conventional art, that is, to re-tension an existing cable-type anchor, in particular, to re-anchor an existing anchor in which a cable is drawn into an anchor hole It is to provide a technology that can be nervous. A method of retensioning an anchor of the present invention is a method comprising an existing fixing tool removing step, a cable fixing step, a fixing coupler setting step, and a retensioning step. In the cable fixing process, while installing an existing cable in the insertion hole of the anchor head in the hole, the anchor head in the hole is set in the anchor hole, and the wedge is fitted into the insertion hole through which the cable is inserted to fix the cable . In the fixing coupler setting step, the fixing coupler is attached to the anchor head in the hole by screwing on the outer periphery of the hole anchor head installed in the anchor hole, and in the re-tensioning step, the fixing coupler is pulled up by the jack, so that the cable get nervous. (FIG.