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试验和现场观测表明,船舶在船闸闸室行驶具有一系列特点。当船舶由上游进入船闸闸室,其船长入进大约三分之一时,在闸室中就会看到最大水位升高(有时达到1米),水面最大比降达0.01～0.008,船侧水流速达3米/秒,船舶纵倾0.007。因此,当船舶行驶速度突然降到0.2～0.1米/秒,发动机的功率难以克服阻力时,船舶就会后退。这时,闸室中的水会大量外溢。外溢的结束往往与反射波周期的
Tests and field observations show that the ship has a series of characteristics in driving the lock chamber. When the ship enters the ship lock chamber from upstream and the captain enters about a third, the maximum water level (sometimes up to 1 meter) will be seen in the lock chamber, and the maximum water surface ratio will drop from 0.01 to 0.008. The ship side Water flow rate of 3 m / s, ship pitch 0.007. Therefore, when the ship speed suddenly dropped to 0.2 ~ 0.1 m / s, the engine’s power is difficult to overcome the resistance, the ship will be back. At this moment, the water in the lock chamber will overflow greatly. The end of the spill is often with the period of the reflected wave