| 摘要 |
PROBLEM TO BE SOLVED: To hold stable anchorage force for a prolonged term by tying a several number of small anchorage bodies by introducing each prestress by a series of drag wires and using the anchorage bodies as one anchor anchorage body. SOLUTION: A several number of small anchorage bodies 1-3 are tied by introducing prestress by one or a series of drag wires 4 respectively, and the small anchorage bodies are employed as one anchor anchorage body. Consequently, a several number of the tied small anchorage bodies 1-3 have axial force respectively, each small anchorage body 1-3 is released from anchorage materials 6, 7 by applying previously added emergency force by anchor works, and axial force is transmitted successively to the small anchorage bodies 1-3 before one anchorage body respectively. Accordingly, skin direction is dispersed to each small anchorage body 103, anchor structure resulting in a natural anchorage ground is formed, and stable anchorage force can be held for a prolonged term.
|
