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三峡工程规模巨大，建设总工期长达１７年，经多年研究比较，确定采用明渠导流三期围堰施工的方案，二期工程施工的６年时间内选定导流明渠结合临时船闸方案解决施工期通航。设计中重点研究了临时船闸在满足施工通航的前提下如何结合永久建筑物布置的问题，重点介绍了临时船闸薄壁衬砌墙结构、头部短廊道输水系统及金属结构闸门启闭机械设计的特点。临时船闸的运行实践将为永久船闸大高度衬砌式结构设计及大型启闭机械设计借鉴。
The Three Gorges Project is huge in scale with a total construction period of 17 years. After many years of research and comparison, it has decided to adopt a plan for the construction of the third phase cofferdam under the diversion of the open channel. During the six years of construction of the second phase, the diversion and open channels combined with the temporary ship lock solution Navigation during construction. In the design, the problem of how to combine the permanent structures with the temporary shiplock under the precondition of meeting the construction navigation is emphatically studied. The design of the temporary shiplock thin-walled lining wall structure, the head short corridor water conveying system and the mechanical structure of the metal structure gate opening and closing are mainly introduced specialty. The operation practice of the temporary lock will provide a reference for the design of large-height lining structure of permanent lock and the design of large opening and closing machinery.