| 摘要 |
PURPOSE:To facilitate the connection between a cotter reinforcement and an underground wall, by a method wherein a sleeve with a cover is previously buried in the end section of the underground wall and after ground on the sleeve side is excavated, the cover is removed and the end section of the cotter reinforcement is fixed to be inserted into the sleeve. CONSTITUTION:After a groove slot is bored through ground E, a reinforced cage 5 to which a plurality of sleeves 6 are previously and laterally fixed is inserted into the groove slot and concrete is cast to construct an underground wall 1. Then, the sleeves 6 are buried so that sealing covers 13, 14, 15 may be positioned on the side face of a structural unit 18 of after-construction for the underground wall 1. Then, an excavated space S is formed so that the tips of the sleeves may be exposed, and after the sealing covers 13, 14, 15 are removed, the end sections of cotter reinforcements 17 are inserted into the sleeves 6 and fixed with grout material which is injected from injection inlets 11, and the structural unit 18 of after-construction is formed. |
