Abstract: Based on the field geological exploration and the laboratory tests, a finite element analysis for the excavation stability was conducted on the ship lift slope of Goupitan Hydropower Plant. The deformation, the maximum principal stress distribution, and the failure zones of three different excavation schemes were studied. It is found that the deformation, the zones of tensile stress and zones of potential failure can be effectively reduced by the proposed rock anchors. The stability of the ship lift slope can be assured throughout the detailed analyses.

Key words: Goupitan, Ship Lift Slope, Slope Stabilit, Supporting Measures, Numerical Simulation