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The installation of pre stressed anchorage rod of top pintle of the miter gate of Three Gorges Permanent Lock is the most difficult item in the metal structures and mechanical and electrical equipment of Three Gorges Permanent Lock.

技术人员对安装工程的难点认真分析 ,对方案进行数次优化 ,圆满完成了任务 ,为我国人字形工作闸门顶枢预应力锚杆的安装积累了宝贵经验。