| 摘要 |
PROBLEM TO BE SOLVED: To reduce costs and a construction period for repair work by enabling a corrosion-proof sheet to be easily stuck on an inner surface of a ceiling of a dome-like roof. SOLUTION: The entire perimeter of an outer peripheral edge of the corrosion-proof sheet 20 is airtightly mounted on the outer peripheral part of a lower end of the inner surface 18A of the ceiling 18 of the dome-like roof. The mounting of the sheet 20 makes an upper space 22 formed above the sheet 20 and makes a lower space 24 formed below the sheet 20. Air vent holes (not shown in Figure) are provided in a plurality of places in the ceiling 18, and the upper space 22 is made to communicate with atmospheric air. The pressure of the lower surface 24 is increased; and the sheet 20 is expanded upward and brought into close contact with the inner surface 18A. In this state, a worker sticks the sheet 20 on the inner surface 18A on a platform 28A of movable scaffolding 28 which is carried into a tank 12. COPYRIGHT: (C)2004,JPO
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