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No. 48 (1994/09) >

 
Title :サンゴ岩塊群の波浪減衰効果に関する研究
Title alternative :Wave Damping Effect of Sea Bed with Group of Reef Blocks
Authors :津嘉山, 正光
仲座, 栄三
Authors alternative :Tsukayama, Seiko
Nakaza, Eizo
Issue Date :1-Sep-1994
Abstract :Wave damping effects of reef sea bed with group of reef blocks are investigated. In the first, a field survey was carried out at the coast of Ikei Island to glasp natural condition of reef sea bed, and also to make clear characteristics of reef blocks distributed on the sea bottom. Taking into account the results of the field survey, model experiments and theoretical analysis were carried out. Main results of this study are summarized as follows; 1) Forms of the reef blocks on the sea bed can be classified in three types referred to they as column type, rectangular post type and semispheric type, respectively. 2) Experimentally, it have been clarified that wave damping effects of the sea bed with reef blocks depend upon not only usual frictional effect of the sea bed, but also the effects of form resistance of reef blocks due to wakes occurred in behing of each blocks. 3) Thoretical values of coefficients of wave transmition on the reef were shown good agreement with the experimental ones.
Type Local :紀要論文
ISSN :0389-102X
Publisher :琉球大学工学部
URI :http://hdl.handle.net/20.500.12000/15871
Citation :琉球大学工学部紀要 no.48 p.31 -39
Appears in Collections:No. 48 (1994/09)

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