Aiming at the leakage problem of the foundation pit of the second-line ship lock of Zhuzhou Navigation-Hydropower Junction,based on the observation and inspection work of the foundation pit on site,we analyze the cause of the leakage.According to the aquifer medium and their distribution characteristics,the type of foundation seepage is categorized.Through the observation of seepage flow and seepage deformation,the seepage characteristics and the influence on the foundation pit engineering of each seepage type are analyzed.Based on the influence degree of seepage on the foundation pit engineering,and referring to the design and construction experience of the first-line ship lock,different treatment measures are taken to meet the requirements of slope stability of the foundation pit and bearing capacity and settlement of the foundation.The work ideas for identification of hydrogeological conditions in the engineering geological survey could be referred by the inland ship lock project.