ESTIMATION OF TSUNAMI FORCE ACTING ON THE BLOCK ARMORED BREAKWATER DUE TO SOLITON FISSION

Proceedings of the International Conference on Coastal Engineering

Akihiko Yahiro¹  Masashi Tanaka¹  Tomotsuka Takayama¹  Sohei Maruyama²  Minoru Hanzawa²  Toru Aota²  Akira Matsumoto²  Kojiro Suzuki³  Kenichiro Shimosako³ 

[1] Coastal Development Institute of Technology, 1-14-2, Nishi Shinbashi, Minato, Tokyo, 105-0003, Japan;Fudo Tetra Corporation, 2-7, Higashi Nakanuki, Tsuchiura, Ibaraki, 300-0006, Japan;Port and Airport Research Institute, 3-1-1, Nagase, Yokosuka, Kanagawa, 239-0826, Japan

关键词: tsunami;    soliton fission;    wave force;    wave-dissipating works;   

DOI  :  10.9753/icce.v35.structures.19

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

A series of hydraulic model experiments were performed to verify the effect of armoring concrete blocks on tsunami pressure reduction in a state of soliton fission. Applicable ranges for the Tanimoto and modified Tanimoto formulas for wave pressures acting on a caisson have been determined in terms of the ratio of tsunami height to water depth. An estimation formula for the tsunami pressure reduction factor of the armoring blocks was proposed as a result of a comparison of tsunami force between the states without and with the armoring blocks. The calculated tsunami forces acting on a caisson armored with blocks agreed well with the corresponding experimental ones. Sufficient stability of the armoring blocks against tsunamis was also confirmed by the experiments.

【 授权许可】

CC BY