Surrounding Rock Stability Numerical Simulation in Water-rich Roadway Based on Fluid-solid Coupling Theory

In order to study the impact of fluid-solid coupling stress field on the stability of water-rich stratum, we use FLAC^3D numerical simulation to establish numerical calculation model, and analyze the influence of seepage on the stability of different levels surrounding rock from two aspects: the displacement of surrounding rock and distribution of plastic zone. Finally the support design is made based on the water-rich roadway with most serious deformation and failure. It proved that the anchor grouting support is rational and effective in the design of supporting in water-rich roadway.