龙固煤矿中央泵房埋深-855 m,围岩变形大、支护风险高。为解决中央泵房硐室围岩的支护难题,基于先“柔”后“刚”的模式提出了锚网索喷让压+锚注联合支护方案,并分别通过理论分析和数值模拟对泵房围岩注浆效果进行了研究,取得了较好的围岩加固效果。 Longgu coal mine central pump room depth of -855 m, large deformation of surrounding rock, high support risk. In order to solve the problem of supporting the surrounding rock of the central pumping station, a scheme of combined support with anchor net, injection pressure and anchor and grouting was put forward based on the model of “first”, “soft” and then “just” And numerical simulation of the pumphouse surrounding rock grouting effect has been studied and achieved better wall reinforcement effect.