Submerged Breakwater Wave Power And Transmission Pilot Study

Submerged dyke is a common offshore structure, which is widely used for band protecting and silt promoting engineer and etc. However, few research studies are done upon such a problem home and abroad and even the accomplished results are not satisfying, which cannot be used for real projects, and in most cases, they will have to depend on the results of experiment. So, in order to discover essential properties, the paper focuses on deep study upon the wave forces over submerged dyke and transmission coefficient considering the band protecting and silt promoting project in Shengli Oilfiled, which may be used for real engineer.The paper studies upon the submerged dyke. Through the physical model experiment, the wave forces over submerged dyke and transmission coefficient are analyzed under the action of regular wave. In the test of wave forces, the rectangle-type submerged dyke is used as research object, and when analyzing the total wave forces, the effect of water depth before the dyke and that of the wave parameters is considered. Based on the test, through the methods of multi-element linear regression, experimental formulae are given to calculate maximum total wave forces in horizontal direction, its relative vertical wave forces and maximum wave forces before and after the dyke, which are compared with the present formulae. In the test of transmission coefficient property, semi-circle type, rectangle type, trapezoid type and concave type dyke are studied. Research study is on the effect of relative water depth over the dyke to the transmission coefficient of the four different types dyke, and the comparison is done. Finally, the experimental formula is given to the transmission coefficient, which are compared with the present formulae.