| 摘要 |
PROBLEM TO BE SOLVED: To provide a floating body structure having an alarming effect of preventing a small ship from approaching a coverage area, and having a function to stop invading small ships on the sea.SOLUTION: A pollution preventing membrane 10 including a float part 10A extending so as to define a water area, and a curtain part 10B suspended at a lower end of the float part 10A to define the water area in water is provided. A float net 20 fixed to part of the float part 10A and formed by knitting floatable ropes into a lattice with a predetermined mesh size is disposed on the water area outside the area defined by the pollution preventing membrane 10. Of the ropes constituting the float net 20, the rope which is disposed in parallel to the float part 10A has a light reflection rope 22 and a support rope 23 for supporting a trap net 24 suspended into water. The propeller of the ship moved into the float net 20 is caught by part of the ropes or the trap net 24 to prevent the ship from approaching the pollution preventing membrane 10 or an inner water area. |
