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http://dx.doi.org/10.12652/Ksce.2013.33.2.573

Comparison of Wave Pressure Acting on the Front Wall According to the Porosity of Caisson Breakwater Having the Cap of Wave Chamber  

Oh, Sang-Ho (Korea Institute of Ocean Science and Technology)
Ji, Chang-Hwan (Korea Institute of Ocean Science and Technology)
Oh, Young Min (Korea Institute of Ocean Science and Technology)
Jang, Se-Chul (Korea Institute of Ocean Science and Technology)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.33, no.2, 2013 , pp. 573-584 More about this Journal
Abstract
This study experimentally investigated the change in distribution of wave pressure on the front wall according to the variation of the front wall porosity of the caisson breakwater having the cap of wave chamber. First, the wave pressure for the non-porous caissson corresponding to zero porosity was measured and compared with the pressure formula suggested by Goda(1974). The analysis showed that the measured pressure distribution fairly well agreed with the Goda formula, which confirmed the accurate measurement of wave pressure in the present experiment. In case of the porous caisson, meanwhile, the experiment was performed by varying the front wall porosity as 0.2, 0.25, and 0.3. The wave pressure distribution at the front wall showed little difference according to the porosity for most of the test wave conditions, whereas the pressure slightly increased with the porosity for some test waves whose wave heights and periods were relatively large. However, the difference according to the porsosity was insignificant for the wave force at the front wall.
Keywords
Caisson breakwater; Wave pressure; Perforated caisson; Porosity; Front wall;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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