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船闸运行时,从上游进入闸室的船舶撞击下闸首人字门是最常遇到的事故之一。一旦发生这种事故,需要花费昂贵的代价对船闸进行大修。而且发生碰撞事故时,通常人字门(主要是上部)和船舶都会受到损害。为了保护人字门,一般在船闸下闸首人字门前,设置船舶事故制动装置——具有很大设计能容量的防撞设施。
One of the most commonly encountered accidents was the collision of a ship entering the lock chamber from the upper gate at the gate of the lock when operating the lock. In the event of such an accident, a major costly repair of the ship lock is required. And in the event of a collision, usually the Miter Doors (mainly the upper part) and the ship will be damaged. In order to protect the miter gate, it is generally arranged in front of the gate of the lock to set a ship accident braking device - a collision avoidance facility with a large designed capacity.