SUBMERGED BREAKWATER AND MATERIAL FOR CONSTRUCTING SUBMERGED BREAKWATER

摘要

PPROBLEM TO BE SOLVED: To provide a submerged breakwater capable of maintaining a stable structure over a long period of time, while providing a water quality purifying and sludge deposit restraining effect. PSOLUTION: This submerged breakwater is constructed by stacking steel manufacturing slag having a rate of a slag mass having a particle size of 100 mm or more being 60 mass % or more and a rate of a slag mass having a particle size of 30 to 300 mm being 95 mass % or more on the water bottom. The submerged breakwater effectively exhibits the original water quality purifying action of the steel manufacturing slag by preventing the deposit of sludge in a slag clearance, and can further provide the water quality purifying action and the sludge deposit restraining effect by the fixation and activity of an organism by forming an environment suitable for the organism inside. The submerged breakwater properly prevents the wash-away of the slag and the collapse of the submerged breakwater by external action such as waves and the buoyancy of epiphytic seaweed, and maintains the stable structure over a long period of time. PCOPYRIGHT: (C)2005,JPO&NCIPI