| 摘要 |
PROBLEM TO BE SOLVED: To provide a member for forming a grout injection/discharge hole and a method for forming the grout injection/discharge hole using the member, simple in handling and excellent in workability when forming the grout injection/discharge hole communicating in a sleeve joint of a precast concrete structure.SOLUTION: There is provided a method for forming a grout injection/discharge hole communicating in a sleeve joint of a precast concrete structure including forming the grout injection/discharge hole by screwing a tip of an elastic body tube into a connection port of the sleeve joint, then inserting a core material with outer diameter same as inner diameter of the elastic body tube or smaller than inner diameter of the elastic body tube and sandwiching the tip of the elastic body tube with the core material and the connection port of the sleeve joint to fix the tip and pulling the elastic body tube together with the core material after concrete solidification to extend the elastic body tube and pulling out while peeling from the concrete.SELECTED DRAWING: Figure 1 |
