In the present study, a total of 51 test cases have been conducted for various wave conditions and slope angles of breakwater to develop a stability formula for Rakuna-IV. To include the effect of bottom slope on armor stability, a foreshore slope of 1:25 is used. The stability number of the formula is derived separately for plunging and surging waves, and the greater of which is used. The transitional surf similarity parameter from plunging to surging waves is also presented. Lastly, to explain the stability of Rakuna-IV to the engineers who are familiar with the stability coefficient in the Hudson formula, the required weight of Rakuna-IV is calculated for varying significant wave height for typical plunging and surging wave conditions, which is then compared with those of the Hudson formula using several different stability coefficients.
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The Twenty-fourth International Ocean and Polar Engineering Conference
June 15–20, 2014
Busan, Korea
ISBN:
978-1-880653-91-3
Stability Formula for Rakuna-IV Armoring a Rubble Mound Breakwater
Hiroshi Matsushita
Hiroshi Matsushita
Nikken Kogaku Co., Ltd.
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Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, Busan, Korea, June 2014.
Paper Number:
ISOPE-I-14-439
Published:
June 15 2014
Citation
Suh, Kyung-Duck, Lee, Tae-Hoon, Cheon, Se-Hyeon, and Hiroshi Matsushita. "Stability Formula for Rakuna-IV Armoring a Rubble Mound Breakwater." Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, Busan, Korea, June 2014.
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