Fuzzy Evidence Based Reasoning for TBM Tunnel Construction Safety Risk Evaluation
In order to determine the safety status and key influencing factors of TBM tunnel construction,combined with the characteristics of TBM tunnel construction,the safety risk evaluation index system of TBM tunnel construction was built and the combination weighting method based on two-tuple linguistic was proposed.The fuzzy normal distribution under the condition of multi-level intersection was introduced as the membership function distribution of fuzzy evaluation grade and the comprehensive evaluation model of safety risk of TBM tunnel construction was built.It conducted analysis by taking the Western Water Diversion Route of Anyang City in the South-to-North Water Diversion Project as an example.The results show that the construction safety risk level is in the middle risk level,and the safety accident risk is a lower risk;technical risk,equipment risk,management risk and natural risk are medium risks;geological risk is a higher risk and should be emphasized for control.
TBMtunnel construction safetyweightsrisk assessment
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