原型观测的分析表明,闸门室和它附近的泄水孔段经常遭受空蚀破坏,因为闸门和门槽使它们周围的水流发生变形,而且它们周围是发展不足的边界层。最经常受到空蚀破坏的部位是安置平板闸门的闸门室,空蚀破坏不仅直接出现在门槽,而且出现在门槽下游的泄水段。 Prototype observations indicate that the sluice chamber and the scuppers near it often suffer cavitation damage because the sluices and gate grooves deform the water flow around them and they are underdeveloped boundary layers around them. The site most often damaged by cavitation is the sluice gate where the slab gate is placed. Cavitation damage occurs not only directly in the gate slot, but also in the drain section downstream of the gate slot.