| 摘要 |
PURPOSE:To ease temporary installation before putting the blocks and finish work in such a way that in a construction process of the hull blocks, sea surface is used as a block yard, the parts to touch water of the blocks are covered by means of tarpaulin, and the blocks are put afloat on the sea. CONSTITUTION:In a construction process of the hull blocks, sea surface 1 is used as a hull block yard, at least the parts to touch sea water of blocks 2 are covered by means of flexible tarpaulin 3 to be water-tight, and the blocks 2 are put afloat on the sea 1, by which without restricting it areawise as the block yard, the blocks are prevented from corrosion by means of the flexible tarpaulin, the whole is made as a kind of vessel, and the perimetrical edges on their upper ends are tightly fixed to the blocks by means of a tight fastening member 9. |
