认为软岩巷道稳定性应采用动态支护的观点分析．用巷道周边位移表达的损伤因子来描述围岩阶段性变形特征及破坏过程，分析与之对应的围岩强度弱化规律，在此基础上提出了喷锚注分阶段加固技术，并对合理滞后注浆时间的确定进行了研究．最后，介绍了一个应用实例 It is considered that the stability of soft rock roadway should adopt the view of dynamic support. Using the damage factor expressed by the displacement around the roadway to describe the characteristics of the phase deformation of the surrounding rock and the failure process, the law of the weakening of the surrounding rock strength is analyzed. Based on this, the reinforcement technology of injection anchor injection stage is proposed, The determination of pulp time was studied. Finally, an application example is introduced