The Study of Numerical Simulation about Roadway Bolting and Reinforcement to Jointed Rock Mass

Through the mechanical derivation on bolt grouting reinforcement shearing resistance strength of the joint surface, shows that bolt grouting reinforcement focus strengths on the anchor bolt and grouting, and it enhances and elaborates self-supporting ability of rock. Combined with the numerical simulation analysis using the Flac3D software during the jointing soft rock roadway with no supports and protections and bolt grouting reinforcement, we can see that bolt grouting reinforcement has a significant role on improving jointing soft rock roadway force status and limiting roadway rock deformation. Therefore bolt grouting reinforcement is a worthy technology to popularize.