采用良好的充填层和围岩注浆工艺以提高不良岩层的自承能力,并使支架受力均匀,从而保护巷道断面形状的稳定是解决不良岩层巷道支护的有效方法。本文从简单的支护原理出发,分析了不良岩层中巷道支护失稳的原因和状况。强调在某些不良岩层中对围岩进行注浆加固处理的必要性,以及注浆充填层的质量(饱满程度、充填材料等)对整个支架所起的关键作用。最后简单介绍了金川二矿区某围岩注浆加固段及康家湾矿9302巷道的注浆充填与支护情况。 It is an effective method to solve the roadway support of poor rock strata by adopting a good filling layer and surrounding rock grouting technology to improve the self-bearing ability of poor rock strata and to make the support force evenly. Based on the simple support principle, this paper analyzes the causes and conditions of roadway support instability in poor rock formation. It emphasizes the necessity of grouting and reinforcement of surrounding rock in some poor strata and the key role played by the quality of the grouting pack (fullness, filling material, etc.) on the entire stent. At last, the grouting filling and supporting of a surrounding rock grouting reinforcement section and the 9302 roadway of Kangjiawan Mine in Jinchuan No.2 Mine are introduced briefly.