Anchor having fixing device at side of pressure plate to depress land slope and method of installing same

Abstract

The present invention relates to an earth retaining structure for reinforcing a slope, and more particularly, to an anchor including a fixing body at a pressure plate side for compressing a slope and a method for installing the anchor in the slope. The anchor including a fixing body at a pressure plate side for compressing a slope capable of preventing tension of the anchor from being lost by installing a friction type pressure plate fixing body in a steel pipe form that is integrated with the pressure plate at the pressure plate side of the anchor, installing a primary packer at a middle part of the anchor to conduct pressurized-grouting to fix a tip end side fixing body of the anchor, compressing a large pressure plate compressing the slope by introducing a tensile force to the tension member of the anchor together with the pressure plate side fixing body, expanding a secondary packer, and conducting secondary pressurized-grouting, is provided.

What is claimed is: 
     
         1 . An anchor including a fixing body at a pressure plate side for compressing a slope, and configured of a tension member for introducing a tensile force by connecting a pressure plate installed to compress the slope and a tip end side fixing body fixed to an original ground by grouting, the anchor comprising:
 a primary packer installed at a middle part of the tension member to first conduct primary grouting on the tip end side fixing body and fixing the tip end side fixing body; and   the pressure plate side fixing body coupled to a pressure plate compression ring configured to be fixed by secondary grouting after the secondary packer is expanded to be integrally behaved with the pressure plate exhibiting a support force even at a soft ground slope.   
     
     
         2 . The anchor of  claim 1 , wherein in a steel pipe of the pressure plate side fixing body, a steel pipe hole is formed in a tip end side of the steel pipe from the secondary packer so that an injection material in the inside of the steel pipe is also injected to the outside of the steel pipe at the time of grouting. 
     
     
         3 . A method for installing an anchor including a fixing body at a pressure plate side for compressing a slope, the method comprising:
 forming a drilled hole in a slope of a soft ground, inserting the anchor in which a tip end side fixing body and a tension member are coupled, and then expanding a primary packer at a middle part of the anchor for grouting of the tip end side fixing body of the anchor and conducting grouting up to a part where the primary packer is installed;   installing a pressure plate on the tension member of the anchor and fitting the pressure plate side fixing body to which a pressure plate compression ring is coupled on the tension member to be inserted and installed in the drilled hole;   expanding a secondary packer installed at a tip end of the pressure plate side fixing body;   installing an anchor head on the pressure plate and extending the tension member; and   conducting secondary grouting on the pressure plate side fixing body.   
     
     
         4 . A method for installing an anchor including a fixing body at a pressure plate side for compressing a slope, the method comprising:
 inserting the anchor in which a tip end side fixing body, a tension member, and the pressure plate side fixing body are integrally assembled into a drilled hole in a slope, and expanding a primary packer to conduct grouting;   fitting a pressure plate on the pressure plate side fixing body and then screw-coupling a pressure plate compression ring to be fastened; and   extending and fixing the tension member of the anchor that protrudes from a pressure plate hole using an anchor head, and covering with an anchor cap; and   conducting secondary grouting on the pressure plate side fixing body.