HYDRAULIC CHARACTERISTICS AND FIELD EXPERIENCE OF NEW WAVE DISSIPATING CONCRETE BLOCKS (ACCROPODE)

Masanori Kobayashi, Sumio Kaithatsu

Abstract


More than 30,000 pcs. of the ACCROPODE blocks have been applied for the wave dissipator of the breakwaters and the revetments at the Hararaachi thermal power station where construction works of the harbor started about four years ago. Since the ACCROPODE has not been used in Japan beforehand, hydraulic model tests were needed to examine its characteristics and to confirm the feasibility to the project, although extensive tests have been made in the world. This paper describes the results of tests on the stability, reflection and transmission coefficients of the ACCROPODE blocks and the field experience at the Haramachi power station. Much reduction of the construction costs and good stability against storm waves attacked were obtained which showed its super usage as the wave dissipator.

Keywords


ACCROPODE; hydraulic characteristics; field experience; wave dissipation

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