High-risk early warning method for TBM (Tunnel Boring Machine) card machine

The invention provides a TBM jamming high-risk early warning method. The TBM jamming high-risk early warning method comprises the steps that TBM jamming high-risk qualitative advanced yellow early warning of unfavorable geology based on the basic characteristics of breakage, softness and rich water is established; the method comprises the following steps: establishing a quantitative main judgment threshold value index and an auxiliary judgment threshold value index by taking a ratio of thrust F to designed maximum thrust Fmax and a ratio of torque T to rated torque Trat in a TBM tunneling process as early warning threshold values, proposing a corresponding relation of each threshold value early warning, and issuing card machine high-risk quantitative real-time red early warning to the TBM through the corresponding relation of each threshold value early warning; after the qualitative advanced yellow early warning is issued, an advanced treatment plan is researched for unfavorable geological types and character