Abstract
In order to understand the navigation safety risks of LNG ships in inland waterways, the paper combines the general accident risk assessment and the specific navigation environment of inland rivers[1], and analyzes the probability of collision accidents[9]. Combined with the characteristics of the specific navigation environment, to construct a hierarchical model of the risk factors for the navigation safety of inland LNG ships. Set the entry channel in the Dongsha operation area of Zhang jiagang Port area as the research scene, use the FAHP (fuzzy analytic hierarchy) process to determine the weight value of each navigation risk factor, use the cloud model to quantify the conversion of qualitative risk factors[13], quantitatively evaluate the risk level of risk factor indicators, and combine qualitative analysis to analyze the risk level of the approach channel in the Dongsha operation area from a quantitative perspective. The result objectively demonstrated the risk level of the channel, and verified that the evaluation result conforms to reality.
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