| 摘要 |
PROBLEM TO BE SOLVED: To provide a ground anchor and a ground anchor method such that even when a retaining wall is reinforced and cut directly by a shield machine, a defective operation due to a tendon never occurs to the shield machine.SOLUTION: A ground anchor is arranged over a soil retaining wall and the foundation to stabilize the soil retaining wall, and has a tendon grip and a tendon as main constitution and a free-length part sheath 5 as auxiliary constitution. The tendon grip has a grip body 15, which is provided with a through hole. The tendon and a tube member 7 are arranged in the through hole of the grip body 15, and joined in one body with an expansion material G. Then the free-length part sheath 5 has its internal space linked to the outside by the tube member 7. |
