In order to study the reparation effect of grouting in jointed rock mass, the repairing factor was introduced in microscopic way to the analysis for jointed rock mass, the element safety factor of tunnel rock mass considering the damage and reinforcement effect was founded to study the stability state of rock mass. The numerical calculation software FLAC3D with the internal FISH program was adopted to compile the program for the element safety factor of tunnel rock mass to obtain the element safety factor for different areas of rock mass after tunnel excavation, and the results were compared w...
