Hazard Risk Analysis of Submerged Floating Tunnels with Fuzzy AHP

摘要

The submerged floating tunnel (SFT) is suitable for a connectionmethod of deep and wide waterways. SFT is mainly floated by theirbuoyancy or supported by the columns. It is similar to floating bridgesor immersed tunnels. In the construction and operation of large marinestructure, hazard risk analysis is one of important factors. Therefore,this paper investigates the hazard risk indexes and evaluates the risklevel in the construction and operation of SFT on the basis of expertsurvey and Fuzzy analytic hierarchy process. Hazard risk is dividedinto natural hazard risk (earthquake, typhoon, tsunami, and icecollision) and human factor hazard risk (fire, explosion, trafficaccident, ship or submarine collision). As the hazard risk level of SFTis compared with those of bridge, underwater tunnel, and immersedtunnel, the intrinsic risk level of SFT was evaluated.