Research on Safety Resilience Optimization of Railway Tunnel Construction in Complex and Challenging Areas
Research purposes:In response to the high difficulty of safety management and high risk of safety accidents in railway tunnel construction in complex and dangerous areas in the western region,this paper explores the use of safety barrier models as an effective means to block risk sources and prevent safety accidents.Improving the resilience of the construction safety management system itself is an important goal to ensure the safe and reliable performance of the tunnel construction system.Research conclusions:(1)Based on the"4M"accident causation theory,a safety barrier model for railway tunnel engineering was established,and an Input-output Structural Model(ISM)was used to construct a diagram of defense elements.(2)The method of distance entropy was used to quantify data and calculates dynamic weights,and the resilience level of the safety barrier model wais measured by combining static Inoperability Input-output Model(IIM)and dynamic IIM.(3)A dynamic optimization system for safety barriers was established,dividing safety barrier warning levels to ensure system safety performance.(4)The research results can be applied in the K2 tunnel,achieving safety risk warning and rectification of safety hazards,improving safety resilience levels,and achieving safety risk control objectives.
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