开孔沉箱在日照港四期码头工程中的消浪效果研究

采用波浪整体物理模型试验方法,根据日照港石臼港区四期码头工程平面布置,针对码头结构采用实体沉箱和开孔消浪沉箱两种结构型式,测定E和ENE向港内波况和码头前波高,并在此基础上分析不同水位条件下开孔沉箱的消浪效果。结果显示,在沉箱尺寸、消浪室宽度和开孔率无法改变的前提下,消浪效果与开孔位置有很大关系。当开孔区位于静水位上、下一倍波高范围时,消浪效果最优。建议开孔区布置应尽量与规范保持一致,将开孔区布置在设计高水位附近。

Wave dissipation result of perforated caisson for Phase IV terminal of Rizhao Port

Through 3D wave physical model test,wave height distribution in front of non-perforated and perforated caisson with different directions was studied respectively on the basis of the layout of Phase IV terminal of Rizhao Port.And then reduction effect of wave height of perforated caisson was obtained from comparison of the two cases.It is indicated from the results that reduction effect of wave height has great relation with the position of perforation on the caisson when dimension of caisson and perforation, perforation rate are fixed.The perforated caisson has a remarkable wave dissipation effect when the perforation lies within the boundaries which are a wave height above or below the still water level.It is suggested for this project that design of perforation should be consistent with the code and near the design high water level.