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开闸放水时,决定下洩流量的诸因素中,闸门开启高度是一个重要的因素。而目前许多水闸管理单位测量闸门开启高度的方法是在墩墙的门槽处安装金属水标尺,由工作人员在检修桥上一边观查闸门上升或下降的情况,一边目测刻度尺并通过哨音的长短变化来指挥启闭台上的操作人员进行“停、倒、正”三种操作。启闭机的桥面一般比检修桥高6米以上,因此每当天气恶劣或晚上,开启闸门的工作常常受到影响,并且闸门的实际开启高度与指令数据相差较大,有时误差竟
Among the various factors that determine the discharge flow when the floodgate releases water, the gate opening height is an important factor. At present, many sluice management units measure the opening height of the gate by installing a metal water gauge at the gate slot of the pier wall. The staff observes the rising or falling of the gate while inspecting the bridge while inspecting the scale and passing the whistle The length of the change to direct the operator on the opening and closing platform for “stop, pour, is” three kinds of operations. The deck of the hoist is generally 6 meters above the bridge. Therefore, whenever the weather is bad or at night, the work of opening the gate is often affected, and the actual opening height of the gate deviates from the command data, sometimes the error actually