消波型高基混成式護岸の波力・越波特性に関する現地観測 Field Observation of Wave-Force and Wave Overtopping for High Mound Composite Seawall 森 昌也 * 山本 泰司 ** 木村 克俊 *** Masaya MORI,Yasuji YAMAMOTO and Katsutoshi KIMURA 消波型高基混成式護岸は高い基礎マウンドとスリット形式の直立部を有する新形式の防波護岸構造 である。同構造形式は北海道森港において全国で初めて施工されており、波力・越波特性を把握する ための現地観測を森港において実施した。その結果、これまでの同構造形式の波力算定式には考慮し ていない潮位の影響によっても作用波力が変化することを確認した。また、越波流量については木村 らの提案式と一致する傾向にあったが、打ち上げ高さは風の影響により提案値を上回ることを確認し た。 《キーワード:高基混成式護岸;波力特性;越波特性》 A high mound composite seawall, which has a permeable front wall with a dissipation chamber on the superstructure, on a relatively high mound was newly developed as a revetment for reclaimed land or artificial island. Newly developed seawall was constructed in the Mori port of Hokkaido and field observation was conducted to investigate the wave-force and wave-overtopping characteristics. The observations reveal that tides cause variations in the wave force acting on the slit wall, variations that were not considered in previous proposals. It is shown that the wave- overtopping rate gives good agreement with empirical prediction methods derived from laboratory test by Kimura et al(1999), but wave run-up height was found to be higher than prediction methods. 《Keywords:High mound composite seawall; Wave-force; Wave-overtopping》 報 文 寒地土木研究所月報 №654 2007年11月 17
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消波型高基混成式護岸の波力・越波特性に関する現地観測 …消波型高基混成式護岸の波力・越波特性に関する現地観測 Field Observation of
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消波型高基混成式護岸の波力・越波特性に関する現地観測
Field Observation of Wave-Force and Wave Overtoppingfor High Mound Composite Seawall
A high mound composite seawall, which has a permeable front wall with a dissipation chamber on the superstructure, on a relatively high mound was newly developed as a revetment for reclaimed land or artifi cial island. Newly developed seawall was constructed in the Mori port of Hokkaido and fi eld observation was conducted to investigate the wave-force and wave-overtopping characteristics. The observations reveal that tides cause variations in the wave force acting on the slit wall, variations that were not considered in previous proposals. It is shown that the wave-overtopping rate gives good agreement with empirical prediction methods derived from laboratory test by Kimura et al (1999), but wave run-up height was found to be higher than prediction methods.《Keywords:High mound composite seawall; Wave-force; Wave-overtopping》