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本文结合巷道围岩强度弱化规律，首次提出软岩巷道的动态支护原理和分步加固技术，同时给出了一个喷锚注动态加固的成功实践，为软岩支护提供了新的方法。
In this paper, the dynamic supporting principle and the step-by-step reinforcement technology for soft rock roadway are proposed for the first time based on the weakening rule of surrounding rock strength. Meanwhile, a successful practice of shotcrete and grouting dynamic reinforcement is given, which provides a new method for soft rock supporting.