| 摘要 |
PROBLEM TO BE SOLVED: To propose a construction method for an oil protective barrier which is excellent in workability and economical efficiency.SOLUTION: A construction method for an oil protective barrier includes processes of: forming an inner form 21 by connecting a plurality of segments 2a, 2a, and so on in a ring shape on an upper surface of a bottom slab B; installing an outer form 3 on the outside of the inner form 21 with a clearance from the inner form 21; and placing concrete C between the inner form 21 and the outer form 3. The ring-shaped inner form 21 is configured to self-support, and the outer form 3 is connected via a separator 5 to the inner form 21, and lateral pressure when placing the concrete C acting on the outer form 3 is shared by the inner form 21.SELECTED DRAWING: Figure 3 |
