通过对掘进机行走机构工作原理的分析,建立了故障树,探讨了掘进机行走机构专家系统的结构,利用“框架+产生式规则”相结合的方法,建立了知识库,采用正向推理的推理机制,建立了掘进机行走机构故障诊断的专家系统,所做的研究对于加快故障诊断速度、提高掘进机行走机构工作的可靠性有重要的理论意义。 Based on the analysis of working principle of roadheader running mechanism, the fault tree was established, the structure of roadheader expert system was explored, and the method of “frame + generative rule” was combined to establish the knowledge base, and the forward reasoning Reasoning mechanism to establish the expert system of the TBM’s fault diagnosis. The research done has important theoretical significance for accelerating the fault diagnosis speed and improving the reliability of TBM’s traveling mechanism.