葛洲坝船闸输水阀门段空化与声振研究

A Study on Cavitation and Acoustic Shock at Water Filling & Emptying Valve Section of Gezhouba Shiplock

高水头船闸输水阀门的空化和声振是世界船闸建造中的重大技术难题之一，文章提出的门楣通气减蚀措施具有投资省，运行可靠，效果显著的特点，它解决了我国高水头船闸下游水位变幅大，难以采用国外常用的阀门后廊道顶通气减蚀措施的难题。

Cavitation and acoustic shock of the filling & emptying valve of shiplock with high water head is one of the crucial problems in shiplock construction in the world. The measures for erosion reduction through lintel's ventilation is characterized with less investment, reliable operation and obvious effect, which solves the problem of being difficult to adopt the erosion reduction measure commonly used in foreign countries, i.e.,push ventilation of culvert behind the valve, because of large stage amplitude of variation at downstream of shiplock with high water head.