弧形闸门的特点是不需要门槽,流态平稳,闸墩厚度和高度较小,启门力也小,运行方便,安全可靠,一般认为是比较经济的一种门型。多年来,常在水利水电工程的溢洪道上采用。弧形闸门的起吊方式,需根据水利枢纽总体布置的要求和其它条件进行综合比较后确定。国内外常见的有固定卷扬式启闭机、链式启闭机、 The characteristic of the arc gate is that it does not need the gate slot, the flow pattern is stable, the thickness and height of the gate pier are small, the door opening force is also small, the operation is convenient, the safety is reliable, and it is generally regarded as a more economical door type. Over the years, often used in spillway of water conservancy and hydropower projects. The lifting of the arc gate shall be determined after comprehensive comparison according to the requirements of the overall arrangement of the water control project and other conditions. Common domestic and foreign have a fixed winch hoist, chain hoist,