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第三节制闸 84孔 ,运行近 30年后须进行加固改造 ,其中闸门的启闭方式选择为 10项改造工程的重点课题。在油压启闭、门机启闭、卷杨启闭 3种方案中 ,卷扬启闭最不经济 ,但经过综合分析全面比选后 ,最终选取了卷扬启闭方案
Section III gate 84 holes, after nearly 30 years of operation to be reinforced and rebuilt, including the gate opening and closing options for the 10 key projects of the reconstruction project. Among the three schemes of hydraulic opening and closing, door opening and closing and opening and closing of hoistway, winch hoisting and hoisting are the most uneconomical, but after a comprehensive comparison and comprehensive comparison, the winch hoisting and closing plan is finally selected