| 摘要 |
PROBLEM TO BE SOLVED: To provide a concrete structure surely cutting off water without degrading a cut-off effect and easily constructible without using a special cut-off tool. SOLUTION: A plurality of wall bodies 12 formed of prestressed concrete are continuously arranged along a boundary face between a land part 3 and a space part 14. The wall bodies 12 comprise grout grooves 15a, 15b in clearances on the land part 13 side and space part 14 side of the adjacent side faces. A cut-off material groove 16 is provided between the grout grooves 15a, 15b, and a gelling cut-off material 19 is provided in the cut-off material groove 16. The grout groove 15b on the space part 14 side is provided with bag grout 17. A clearance grout material 18 is filled in a clearance between the wall bodies 12 on the land part 13 side rather than at least the bag grout 17 using the grout groove 15a as an injection passage. Cut-off can be surely performed by providing the bag grout 17, the clearance grout material 18 and the gelling cut-off material 19. COPYRIGHT: (C)2009,JPO&INPIT
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