Tunnel engineering management combining risk factors and fuzzy comprehensive evaluation method
摘要
With the expansion and continuous improvement of the transportation network, tunnel engineering has become an important construction project in the design of different transportation routes. However, during the tunnel construction stage, especially during blasting operations, risk factors are complex and variable. Traditional risk assessment methods often struggle to take into account the influence of multiple dimensions simultaneously, resulting in incomplete risk identification and imprecise management measures. Based on this, this paper takes the tunnel construction stage as the research object and proposes a risk management method combining the Analytic Hierarchy Process and the Fuzzy Comprehensive Evaluation Method to solve the problems of insufficient risk identification and imperfect quantitative evaluation. The study conducts an index weight analysis on the risk factors of tunnel blasting construction and the overall project. The results showed that during the mountain excavation stage, the blasting technical risk factors were related to the dosage of explosives and the blasting depth. The fuzzy relationship vector of the dosage of explosives was 0.9, and the weight ratio of the blasting control parameters was as high as 0.94. For the overall project risk factor analysis, the highest economic and social risk index was 12, and the risk level was mainly 6. In terms of technical factors, the average weight was 0.203, and the average weight of risk management indicators was 0.235. At the same time, the risk warning of technical management factors was mainly moderate, and the highest warning values were 5 and 4, respectively. Based on the above results, it can be concluded that the risk management evaluation method has superiority in tunnel construction and management, and provides theoretical basis and reliable suggestions for the risk management system of tunnel engineering.