EARTH IMPROVEMENT TYPE EARTH ANCHOR AND CONSTRUCTION MATHOD THEREOF FOR PROTECTING SOIL

摘要

A ground anchor for soil retaining and ground upgrade and a construction method of a ground anchor are provided to minimize grout consumption in the gravel layer and sato ground and to fasten a retaining wall stably without collapse. A ground anchor(1) for soil retaining and ground upgrade comprises a first grout injection tube(3), plural prestressed concrete steel wires(4), a pack(5), a packer(6) and an anchor head(2). The ground anchor includes a second grout injection tube(7). The first grout injection tube is inserted into the punched hole of the ground. A plurality of prestressed concrete steel wires are arranged in the outer circumference of the first grout injection tube. The pack is put on the end of the prestressed concrete steel wire and the first grout injection tube. The packer fixes the inlet of the pack to the first grout injection tube and prestressed concrete steel wire. The second grout injection tube is fixed to the anchor head and packer.