| 摘要 |
PURPOSE:To reduce the cost of reinforcing work by a method in which paired wings to be opened on the tip side as a supporting point are pivotally attached to the tip of an anchor body and pivotally connected with a connecting link, and a pulling tool connected to the link is led to the outside through the body. CONSTITUTION:Wings 3 are attached to pivotal pins 9 at the tip of an anchor body 7 by pivotal pieces 8 fixed to the wings 3 in such a way as to enable the tip ends of the wings 3 to open. Link pieces 10 are connected with a pin 11 to make up a connecting link 21, and the other end of the link 21 is projected outwards through slits 12 and 13 formed in the body 7 and the wings 3. Coupling pins 14 at the tip portion are coupled with the coupling holes 15 of the wings 3. A pulling tool 5 passing through the body 7 is connected to the connecting tool 17, and the other end of the connecting tool 17 is pivotally attached to the pin 11. The earth anchor 4 is inserted into the lower hole 2 of the retaining wall 1, and under the condition that the wings 3 are opened by pulling the pulling tool 5, a grout 6 is injected to form an anchor body 22. |
