1996•Coastal Engineering in JapanRequires access

Field Test on a Semi-Circular Caisson Breakwater

Shinsuke Aburatani, Takashi Koizuka, H. Sasayama, Katutoshi Tanimoto, Nobutaka Namerikawa

Abstract

The world's first semi-circular caisson breakwater was built at Miyazaki Port in Japan. This type of breakwater, consisting of a hollow structure with a semi-circular cross section, is expected to exhibit superb characteristics in terms of sliding stability under a severe natural environment characterized by high waves and poor soil conditions. Field tests were conducted using this test breakwater. Various kinds of data, such as wave pressures exerted on the caissons and stresses generated in the structural members, have been recorded and analyzed since 1993. The analysis of field data verified the stability and structural member safety of the semi-circular caisson breakwater in a severe marine environment.

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Key concepts: Caisson, Breakwater, Geotechnical engineering, Field (mathematics), Test (biology), Mechanics, Engineering, Geology