Impermeable structure of revetment structure in landfill area

摘要

PROBLEM TO BE SOLVED: To provide an impervious structure of a revetment structure in a reclaimed area that ensures impermeability between a revetment caisson and an impervious sheet.SOLUTION: An impervious structure includes: an impervious sheet 10 covering a surface of a revetment backfill 3 established on a reclaimed area side of a revetment caisson 1 constructed in a coastal area so as to partition the reclaimed area; an impervious plate 11 covering a wall surface on the reclaimed area of the revetment caisson 1; asphalt mastic 25 filled and solidified in an area from a surface of the impervious plate 11 toward an area near an edge side on the revetment caisson 1 side of the impervious sheet 10; and a protection sheet 22 covering a surface of the asphalt mastic 25 and having an edge side fixed on the impervious plate 11.SELECTED DRAWING: Figure 3