Seepage-stress coupling analysis of river-crossing tunnel excavating

Stress redistribution of surrounding rock induced by tunnel excavation and seepage affects stability of tunnel.Tunnel excavation and seepage field boundary variation were closely connected.Appropriate 3D FEM was established according to seepage field boundary and hydromechanical coupling effect of a planned tunnel excavating was analysed.Seepage-stress coupling equation was established in steady state,pore pressure varying regularity with tunnel excavation and hydromechanical coupling affects to...