Abstract: During the construction period of the Three Gorges Project (TGP) shiplift dam block,the horizontal and vertical displacement of its foundation gallery and its foundation deformation undergo an unusual process. Based on the topography and geology conditions of the foundation and the structure characteristics of the dam block, the analysis of the unusual process is made by use of the monitoring data in this paper. As a result, the working behavior of the TGP shiplift dam block is appraised.?

摘要： 本文利用三峡大坝升船机上闸首施工期实测监测资料,结合升船机上闸首基础的地形、地质条件及其结构特点,对基础廊道水平位移、垂直位移及基岩变形等出现的不正常变化规律做了全面分析,由此评价了三峡大坝升船机上闸首的工作性态。?