When the steel dam is up or down, the water stopper cannot be separated from the surface of the circular shaft, and the water stopper is always in a sealed state.
当钢坝向上或向下时，止水器无法与圆轴表面分离，止水器始终处于密封状态。
The same principle as the side water stop valve, the water stop does not leave the side chest wall (stainless steel embedded parts), so mud (mud) does not affect the opening and closing of the steel dam gate
与侧止水阀的原理相同，止水口不会离开侧胸壁（不锈钢嵌入式部件），因此淤泥（泥浆）不会影响钢坝闸门的打开和关闭
In heavily silted areas, sand (mud) thresholds and bell openings are usually installed in front of steel DAMS.
在严重淤积的区域，通常在钢坝前设置挡沙（泥）的门槛和钟形口。
The first is to block large rocks effectively.
首先是有效地阻挡大石头。
The second is to increase the speed at which the steel dam is positioned when the dam collapses to release water, effectively sending the mixture of sediment and water directly downstream with the flood.
第二个是增加大坝倒塌以泄洪时钢坝位置的速度，以有效地使沉积物和水的混合物随洪水而直接冲向下游。
The operation process of hydraulic steel dam is very complicated.
液压钢坝的运行过程非常复杂。
Due to the influence of drainage and wind waves, the water level in front of the gate often changes, with the change of the water level in front of the gate and the imbalance of the water system, the opening of the gate is also constantly changing, which will make the production of the gate more and more serious.
由于排水和风浪的影响，闸门前的水位经常变化，随着闸门前水位的变化和水系统的不平衡，闸门的开度也不断变化，这将使闸门的生产越来越严重。
The swing of the amplitude is difficult to control, so that the gate is out of balance and "jumping", which is easy to damage the gate sill structure and greatly shorten the service life of the flap gate and even destroy the gate and gate foundation, and hydraulic steel dam can effectively avoid this series of phenomena.
振幅的摆动难以控制，以至于闸门失去平衡并发生“跳动”，这很容易损坏闸门坝槛结构并大大缩短了襟翼闸门的使用寿命甚至会破坏闸门和闸门基础，而液压钢坝可以有效避免这一系列现象。