ARTIFICIAL FISH BANK AND BEACH AND CONSOLIDATION AND SOLIDIFICATION OF SEDIMENT SLUDGE ON SEABED WHEREWITH

摘要

PURPOSE:To simply treat sludge as well as form artificial fish bank by a method in which a filtable film is settled on the sediment sludge layer of the seabed, concrete fish banks are set on the filtable film, and a solidifying agent for the sludge is injected. CONSTITUTION:A filtable film 2, e.g., a nonwoven fabric, etc., is extended to a given length, concrete round columns 1 are bound with both sides of the film 2, and the film 2 is settled on the sludge layer 3 of the seabed. Consolidation is started while filtering the sludge, and concrete fish banks 7 are settled and set while pressing the film 2. The fish bank 7 is provided with air blow-off pipes 8. As needed, pipes 6 are lowered from a working ship 5 on the sea, the tips of the pipes 6 are thrust through the film 2 to the sludge layer 3, and a solidifying agent for the sludge is injected through the pipes 6 into the sludge for solidifying the sludge.