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结合三峡工程永久船闸完建人字门拆除和重新安装工程,研究人字门整体抬升8 m进行恢复安装的测量方法。在人字门恢复安装测量过程中,提出以人字门原有顶枢和底枢中心为基准分别建立顶枢和底枢专用控制网,以方向交会配合钢带尺精密量距进行放样验收的测量方法。结果表明该方法不仅能满足安装相对测量精度和原闸门系统各结构之间的相对关系,也能保证安装工期要求,对大型金结拆除和重新安装测量具有较好的借鉴意义。
Combined with the permanent ship lock of the Three Gorges Project, the project of demolition and reinstallation of the gabled gate was completed, and the measuring method for the restoration and installation of the gnome door as a whole was lifted up to 8 m. In the process of restoration and measurement of the Miter Gate, it is proposed that the top and bottom pivot special control net should be established based on the original top pivot and bottom pivot center respectively, Measurement methods. The results show that this method can not only meet the relative measurement accuracy of the installation and the relative relationship between the structure of the original gate system, but also ensure the installation schedule requirements, which is of good reference for the removal and reassembly measurement of large gold junctions.