the analog simulation on the stress-deformation characteristic of one high concrete face rockfill dam is carried out. The conclusion obtained from the finite element analysis shows that the great influence of stress paths on rockfill’s deformation characteristics is reflected by Duncan E-B model and mid-point incremental method. The rockfill’s deformation is related to load mode
and same stress level and different stress path
rockfill’s deformation is different; optimized load path is important to control rockfill’s deformation for stage filling rockfill dam.