| 摘要 |
PROBLEM TO BE SOLVED: To position a leg part of a structure in a recess dug down in ditch shape in the seabed ground and to perform treatment for exhibiting impermeability, to its lower part and surrounding part in erecting the structure to divide a sea area to construct sections for reclamation disposal of waste. SOLUTION: To erect a caisson for a partition revetment, the seabed ground is dug down to construct a recessed channel 12, and concrete is placed at the bottom part to provide a lower filled layer 14. A layer 21 of an asphalt mixture is constructed thereon, and a lower part 4 of the caisson 2 is positioned on the upper face to stably hold the structure. To construct an asphalt layer 21, block-like members 22 are arranged at predetermined spaces on the lower filled layer 14, and an impervious layer is constructed of the asphalt mixture to have constant thickness based on the block-like members 22. COPYRIGHT: (C)2009,JPO&INPIT
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