The existing literatures show that the studies about semi-circle breakwater at home and abroad are rarely developed,achievements are relatively limited. Therefore there is not a bettersystemic theory and practicable criterion.
就目前掌握的资料，有关半圆型防波堤的研究国内外开展的还很少，取得的成果也比较有限，没有形成一个较好的系统理论和实用规范。
参考来源 - 淹没情况下半圆形防波堤的数值模拟和实验研究It developed from the semi-circular breakwater. Compared with semi-circular breakwater, when the groundwork is preferable, the quarter-circular breakwater could decrease width of bottom and the amount of the stone bedding as much as possible.
圆弧堤是一种新型的防波堤,是在半圆型防波堤的基础上二次开发而来的,在地基情况比较好的时候,尽可能的减小底宽,从而大大减少了抛石基床的材料用量,以达到经济目的。
参考来源 - 不规则波作用下圆弧型防波堤的水力特性·2,447,543篇论文数据，部分数据来源于NoteExpress
这种新型防波堤的堤顶可用作通道，但同时保留了半圆型防波堤的基本优点。
The top of this new type breakwater can be used as a passageway while remaining the basic advantages of the semi-circle breakwater.
半圆型防波堤设计施工规程征求意见稿根据不同应用条件规定了两套波浪力计算公式。
The draft of design and construction regulations of semi-circular breakwaters provides two sets of formulae under different conditions. It is to be put into practice.
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