葛洲坝船闸人字门顶枢拉杆拆除方案  

Removal scheme of top-pivot tie rods on miter gate of Gezhouba ship lock

作　　者：陶然 田磊 陈明华 付君健 TAO Ran;TIAN Lei;CHEN Ming-hua;FU Jun-jian(Three Gorges Navigation Authority,Yichang 443002,China;Hubei Key Laboratory of Hydroelectric Machinery Design&Maintenance,Yichang 443002,China)

机构地区：[1]长江三峡通航管理局,湖北宜昌443002 [2]水电机械设备设计与维护湖北省重点实验室,湖北宜昌443002

出　　处：《水运工程》2022年第7期173-178,共6页Port & Waterway Engineering

基　　金：水电机械设备设计与维护湖北省重点实验室开放基金项目(2020KJX04)。

摘　　要：拉杆及其前后楔块是人字门顶枢的重要组成部分。原有的人字门顶枢拉杆拆除过程中,拉杆前后楔块松动施工存在安全风险高、拆除效率低等问题。为此,提出一种安全有效的人字门顶枢拉杆楔块拆除设计方案:1)通过研究人字门顶枢拉杆拆除工艺,设计一种人字门顶枢拉杆楔块快速松动工装和工艺流程。2)对楔块松动工装进行校核计算和有限元分析,验证设计的可靠性。3)对楔块松动工装进行厂内和现场测试,并根据工程应用情况验证设计的可行性和实用性。该方案能有效降低施工安全风险、提高人字门顶枢拉杆拆除效率。The tie rods and their front and rear wedge blocks are essential parts of the top pivot on a miter gate.During the removal process of the original miter gate s top-pivot tie rods,there are problems such as high safety risks and low removal efficiency in loosening the front and rear wedge blocks of the tie rods.Therefore,a safe and effective scheme for removing the top-pivot tie rods on a miter gate is proposed:1)The equipment and process flow are designed for rapidly loosening the wedge blocks of the top-pivot tie rods on the miter gate through research on the removal technology of top-pivot tie rods on a miter gate.2)The loosening equipment for wedge blocks is checked by calculations and analyzed by the finite element method to verify the reliability of the design.3)The in-plant and on-site tests of the loosening equipment are conducted,and the feasibility and practicability of the design are verified by the engineering applications.The proposed scheme can effectively reduce construction safety risks and improve the removal efficiency of top-pivot tie rods on a miter gate.

关 键 词：葛洲坝船闸 人字门 顶枢拉杆 拆除方案 有限元分析 

分 类 号：U643[交通运输工程—船舶及航道工程]