埋入式直立防波堤堤前波浪作用影响分析

Analysis of wave action on front wall of buried vertical breakwater

直立式防波堤前存在大面积块石回填,造成堤前水深变浅,波浪形态发生改变。为分析埋入式与非埋入式直立式防波堤所受波浪力的差异,利用波浪断面物理模型试验,测定了两种形式直立防波堤外立面所受波浪水平力及浮托力的数值,同时根据相关规范给出的波浪力理论算法分别进行了波浪力数值计算。通过规范公式法与试验测定数值对比,分析其中规律,提出在一定条件下原地形以上回填埋入式结构受力高于非埋入式的结论,建议未来类似工程设计应重视地形影响、预留足够安全富裕。

A large amount of block stone backfilling in front of the vertical breakwater has caused the water depth in front of the breakwater to become shallower and the wave shape to change.In order to analyze the difference of wave force between buried and unburied vertical breakwaters,the numerical values of wave horizontal force and uplift force on the facade of two types of vertical breakwaters were measured by wave section physical model test,and the wave forces were also calculated according to the wave force theory algorithm given by relevant standards in addition.By comparing the values of the standard formula method with the experimental values,and analyzing of the laws,it is concluded that the stress of the buried structure above the original terrain is higher than that of the unburied structure under certain conditions.It is suggested that the design of similar projects in the future should pay attention to the influence of terrain and reserve adequate safety.