Roads should be built above flood level and have adequate drainage.
道路应当修建于洪水线之上，并且应设有充足的排水系统。
Based on the flood level frequency curve, hydrological failure risk was divided into flood overflowing risk and flood overtopping risk.
基于推求的洪水位频率曲线，将堤防水文失事风险分为洪水漫溢风险和洪水漫顶风险。
But when flood level is rising gradually, controlling the flood level's rising is also very important to prevent dike piping.
由于洪水位还有不断上升的发展趋势，防治管涌还应注意控制洪水位上升的问题。
The designed discharge and designed flood level are determined by hydrological computation and main characteristic value of highway bridge is checked.
通过桥渡水文计算，确定了设防流量及设防水位，校核了大桥主要特征值；
For effective drainage therefore, the entire site should be located above flood level at a minimum of 3 m above the water table, preferably on a gently sloping area.
因此需要注意，为了保证有效的排水，整个地点应当高过洪水水位、高于地下水位至少3米，最好是在地势略微倾斜的地区。
As an example, the overtop failure probability of a dike under different floodwater standards is analysed using measured annual maximum flood level at a hydrological station.
以某水文站实测的年最高洪水位为例，对现有堤防在不同的设防标准下漫顶失效概率进行了分析。
Design Basis Flood Level is one of the important parameters in nuclear power plant siting in coastal area, and evaluation for storm surge is the main factor of Design Basis Flood Level.
设计基准洪水位是滨海核电厂选址中的重要参数之一，而风暴潮评价又是设计基准洪水位的主要组成因素。
Design Basis Flood Level is one of the important parameters in nuclear power plant siting in coastal area, and evaluation for storm surge is the main factor of Design Basis Flood Level.
设计基准洪水位是滨海核电厂选址中的重要参数之一，而风暴潮评价又是设计基准洪水位的主要组成因素。
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