| The support technics process of "three bolting-anchor" support (bolting and shot-concreting, anchorage cable, bolt-grouting) of soft rock roadway is studied in this paper. The relational parameters of the fist shot-concreting and bolting are decided by FLAC2D, on this basis to decide the relational parameters of anchorage cable, bolt-grouting, the second shot-concreting and the optimum support technics process: excavation → fist shot-concreting → bolting→anchorage cable → second shot-concreting → bolt-grouting by the computer numerical simulation and the analysis of orthogonal experiment;By FLAC3D simulate the process of gradually excavating and support of soft rock roadway, analyze the change of roadway surrounding rock stress and displacement of the different support technics process, demonstrating the optimum support technics process can effective control surrounding rock deformation . Furthermore,viscous-elasticity analytical solutions of soft rock roadway support technics process is proposed , based on the theory of viscous-elasticity and the ring element method, and gain the regression equation by analysis simulation result. These supply theory reference for support design of soft rock roadway ,and have important guidance meaning for roadway support technique practice of complex condition.
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