USING PC STRAND GROUND ANCHOR AND METHOD FOR GROUND REINFORCEMENT USING THE SAME

The present invention relates to a permanent anchor body using PC strands and a ground reinforcing method using the same and more specifically, to a permanent anchor body using multiple PC strands and a ground reinforcing method using the same, wherein PC strands are inserted into an anticorrosive tube and sealed with a front end reinforcing part and a rear end fastening part so that: the corrosion of the PC strands can be prevented; efficiency in bonding the PC strands in a bonding length range can be improved by improving a bonding force between the PC strands and grouting material; and the predicted displacement of the ground can be restrained during or after construction. According to the present invention, the permanent anchor body using the PC strands of which each has at least one bulbing part in the longitudinal direction thereof can allow work efficiency in a construction site to be improved based on light and flexible material characteristics; allow the bonding force between the PC strands and grout to be improved; allow additional spacers not to be required; prevent stress corrosion or delayed fracture regardless of bonding angle in a bonding part compared with an existing permanent anchor body using reinforcing bars or steel bars; fundamentally prevent corrosion due to water leakage by sealing the PC strands with the anticorrosive tube even if water leakage due to cracks in grouting is generated; and prevent existing PC strands from being separated from the grout material by the surface corrosion of the existing PC strands.