| The research of mound breakwater of circular arc armor overcomes structure defects oftraditional armor block. Under the guidance of ideas that "third generation" armor block in themainly of hollow structure，a new structure of circular arc armor block has been discussed, asthe theoretical base of superiority structure of semi-circular breakwater.Based on the physical model and numerical simulation of wave flume experiment, thehydrodynamic and wave dissipation characteristics of interaction of armor block and wavehave been comprehensively experimented and Calculating analyzed. Thus, this paper offeredthe internal relationships between the wave forces and wave dissipation effect, in order toprovide an important technical basis of optimization design and engineering application ofthis structure. The main conclusions are as follows：（1）In the physical model experiment, measurement and calculation of wave pointpressure and the total wave force of the breakwater under wave action, through dataanalysizing, the factors of the wave steepness, relative wave height, relative water depth, andthe opening rate effects on breakwater’s wave pressure. Meanwhile, distribution of thearc-shaped retaining surface wave pressure has been studied and analyzed; by collectinginformation of the wave surface, calculation analysis of the relatively high wave steepnessfactors on the reflection coefficient of mound breakwater of circular arc armor.（2）In the hydrodynamic analysis, based on the theorem of wave force, thedimensionless parameters are determined, according to the test results of wave force and theeffect factors are analyzed. The influence of arc armor sloping dike hydraulic characteristicsfactors, in addition to H/L, D/R, and H/D, and the factors correlated with each other as anorganic whole. Based on the test this paper gives the wave force and the influence factors ofcurve, as well as the typical wave conditions the maximum wave pressure wave along thesurface profile, for design reference.（3）Wave dissipation characteristic research, this paper uses two method to calculatewave reflection coefficient. Based on the wave form of breakwater near are described, alsoalong the propagation law of wave. Analysis of the influence factors on the influence law ofreflection, transmission coefficient, and gives a reflection, transmission coefficient with eachinfluencing factor curve, the reflection coefficient of the factors affecting the change is moreobvious, while the transmission coefficient is affected by the smaller. Summed up in the samehole rate conditions, there exists an optimal wave makes the breakwater at this time to achievethe best wave state. The paper also deduces the breakwater energy conversion formula ofbreakwater, energy dissipation characteristic undertook an analysis, given the wave energyconversion ratios in the form of graph.（4）Using the method of VOF free surface tracking technology to build the3Dnumerical wave flume, based on physical model test calculation and Analysis on the physical model test, observation accuracy and complex free surface numerical simulations verify thevalidity of. Analysis of wave action in the process of evolution and wave pressure wave alongthe arc surface of medial and lateral distribution; on this basis, further explore the arc armorbest opening rate, and the pavement structure are optimized.（5）Based on the analysis of the test results and the He Tian Liangshi formulacalculation method, through the calculation of the wave force control coefficients underdifferent conditions of experimental value and theoretical value of the ratio, summed up forarc armor sloping breakwater wave force solution correction coefficient, given different holeratio correction coefficient variation range, and on the wave force test values and thecalculated values are compared to verify the rationality, correction coefficient. |
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