Abstract: The concrete gravity dam's displacement caused byfoundation seepage volume forces was studied based on the elastic theoryand aporous continuum model. Stresses and displacements in the isotropicfoundation with seepage volume forces are obtained. Some conclusions aredrawn: (1) With the upstream foundation subsidence and the downstreamfoundation elevation by the seepage volume forces, the dam has an upcurrentdisplacement. (2) The displacement caused by the foundation area force islarger than that cansed by the foundation seepage volume force, but these loads alllead to the dam upcurrent displacement.