Design Manual for Artificial Reefs

by Kazunori Yoshioka, Ministry of Construction, Tokyo, Japan,
Takashi Kawakami, Ministry of Construction, Tokyo, Japan,
Shigenobu Tanaka, Ministry of Construction, Tokyo, Japan,
Mamoru Koarai, Ministry of Construction, Tokyo, Japan,
Takaaki Uda, Ministry of Construction, Tokyo, Japan,

Document Type: Proceeding Paper

Part of: Coastlines of Japan II


Artificial reefs are wave-breaking structures artificially constructed from rubble to mimic the wave-control functions of coral reefs. Since these structures are located below sea level, they do not obstruct the view. Recently, construction of artificial reefs has been advanced at coastal areas throughout Japan. However, since no systematically organized data are available regarding the design of such reefs, it is difficult to make design decisions in each specific case. Taking these circumstances into consideration, the ministry of construction has systematically organized results of model experiments of the effectiveness and stability of artificial reefs, and compiled design manual for artificial reefs. This paper summarizes the guidelines and discusses key points in the design of artificial reefs.

Subject Headings: Reefs and sills | Construction management | Riprap | Sea level | Coastal environment | Coastal management | Breakwaters | Coastal protection structures | Japan | Asia

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