| 摘要 |
PURPOSE: A multipurpose radial artificial fish reef is provided to prevent structural collapse and structural function loss thereof. CONSTITUTION: A multipurpose radial artificial fish reef comprises a body(2) which is comprised of four branch pipes(1). The body and branch pipes are made of a concrete material in which reinforced steel rods are equipped. The inside of the concrete is made of echo concrete with a large amount of air gaps. The branch pipes are formed of pipe holes(3) in the central direction thereof. In the body, a plurality of protrusions(5) are integrally formed. In the end of branch pipes, a hanging ring part is integrally formed.
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