| 摘要 |
PURPOSE:To raise the efficiency of construction of a composite anchor by a method in which a fluid material is injected into a flexible form attached to the exposure of a bolt closely fixed to the ground and hardened. CONSTITUTION:The through hole 3a of a flexible form 3 having an injection port 3b is inserted into the exposure 2a of a bolt 2 fixed to the ground 1 and the outside is covered with a frame 4 and the frame 4 is attached to the exposure 2a by a nut 6. Then, the transport pipe 8 of a pressure supplier 7 is connected to the injection port 3b, fluid concrete 9 is poured into a form 3, mixing water is squeezed out by raising the packing pressure, and the pipe 8 is separated by a given injection pressure. By this, the concrete 9 is hardened to form a concrete plate. |
