The feedback analysis of excavated rock slope

In this paper a methodology of the feedback analysis on the mechanical para meters and stability of the slope excavated in lock masses is presented. Th e method is based on the combination of the clasto-viscoplastic finite elem ent method and the complex shape minimum method. Special attention has been paid to the simulation of the variation of parameters because of the blast ing damage and the stress relief relaxation, and the de-coupling of paramet ers as well. The slope excavated in the granite rock masses situated at the ship luck of the Three Gorges Project is studied, from which the mechanica l parameters of the rock masses and the deformation, as well as the stabili ty of the ruck slope are forecasted in time as the going on of the slope ex cavation.