棱体排水的顶部高程应超出下游最高水位，应大于波浪沿坡面的爬高，且不小于下列0.5米。
Its top elevated level must exceed the highest water level downstream, be higher than the wave runup along the slope, and be no less than 0.5 meters.
坝顶高程由水库静水位加波浪爬高及安全超高决定。坝顶在静水位以上的超高按下式计算。
The dam crest height is determined based on static water level, wave run-up, and freeboard. The freeboard is calculated according to the following formula.
针对除险加固措施，确定了水库特征水位与库容，计算了坝顶超高及坝顶高程，探讨了坝体和坝基防渗、坝面护坡及防冻等问题。
Characteristic water level and reservoir capacity is fixed, freeboard and dam crest is calculated, seepage prevention of dam body, dam foundation and dam sheeting is discussed.
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