CONSTRUCTION METHOD OF MULTI EXTENDING PERMANENT ANCHOR

摘要

The present invention relates to a construction method for a multiply extendable permanent anchor to maximize bearing power using the frictional resistance of an anchor body and the bearing pressure of an extending anchoring part by multiply extending an anchor using a first extending wedge and a second extending wedge and separating the top and the bottom of the extending wedges from each other at regular intervals. [Reference numerals] (AA) Extending hole forming step; (BB) Anchor insertion step; (CC) First extending step; (DD) Second extending step; (EE) Third extending step; (FF) Grouting step; (GG) Finishing step