Abstract: The paper has preliminarily analyzed the deformation of all lock heads and lock walls in double-line five-grade ship lock at Three Gorges Project. In the course of construction, test and initial operation process, which is effected by the filling & leasing water, the outside temperature variety and opening & closing the lock, etc. The total deformation of the structure is not obvious, and there isn’t any abnormal phenomenon.?

摘要： 本文就三峡工程双线五级船闸的各闸首、闸墙在施工、调试、试运行过程中受充泄水、外界气温变化、闸门开闭等因素影响的变形情况做了初步分析。建筑物变形总体不大，无异常现象。