葛洲坝工程三号船闸在运行数年后,在其输水廊道反向弧形工作阀门上,出现蚀损及局部损坏。本文根据对原型进行动态特性及动水压力试验成果,对阀门蚀损机理进行了研究及理论探讨,提出了蚀损不仅与空穴水流有关,而且与闸门振动特性有关,即由于损伤累积造成了蚀损。 Gezhouba Project No. 3 ship lock in operation a few years later, in its water corridor reverse arc work valve, there erosion and local damage. In this paper, based on the dynamic characteristics of the prototype and hydrodynamic pressure test results, the mechanism of valve erosion was studied and theoretical discussion, proposed erosion not only with the hole flow, but also with the vibration characteristics of the gate, which is due to damage caused by accumulation Erosion.