Experimental and Numerical Study on Rook Seepage Fluid-Solid Coupling Problem

Surrounding rock of tunnels beneath the groundwater level line is suffered from the effect of coupling between stress field and seepage field, and its deformation is sustained and developed over time. Based on the basic theory of rock hydraulics and rheological mechanics, we in this work established the rheological model under the effect of coupling between stress field and seepage field, by which, corresponding finite element calculating format was derived. The correctness of the mode established in this work is verified through the comparison with corresponding experimental results. This model is applied to the long-term stability analysis on underground caverns and slopes suffered from the effect of coupling between stress field and seepage field