基于多源信息融合的船舶撞击弧形闸门风险评估
张超怡 , 陈星 , 张启灵 , 邢喜旺 , 李端有 , 李明
水利水电技术(中英文) ›› 2025, Vol. 56 ›› Issue (S1) : 534 -542.
基于多源信息融合的船舶撞击弧形闸门风险评估
Risk assessment of ship impact on radial gates using multi-source information fusion
The risk of ship impact is growing for various types of water conservation facilities due to the fast-growing inland river navigation. Compared with general mass concrete water-retaining structures, e.g. dams, gate structures are thinner and thus take higher failure risks in ship-impact events. Consequently, gate structures are generally recognized as weaknesses among water-retaining structures. Unfortunately, no mature method are available for quantitative assessment of failure risks to gate structures in ship-impact events. A risk assessment study of a radial gate structure was conducted. A multi-source information fusion assessment approach based on the combination of weights, the cloud model and the D-S evidence theory was proposed. Finite element analysis was carried out to provide the data input for the risk assessment.In the current case of the ship tonnage between 200-3 000 t and the ship's speed between 1-8 m/s, the failure risk of the radial gate subjected to ship collisions is ranked as Class II. The gate should have some pitfalls in ship-impact events but can maintain its safe operation. The proposed method can directly present the gate's risk level, thus achieving quantitative assessment of failure risks to gate structures in ship-impact events. The assessment result can serve as a scientific foundation for the navigation safety management of water conservancy facilities and the formulation of the corresponding emergency plans.
弧形闸门 / 船舶撞击 / 云模型 / 组合赋权法 / D-S证据理论 / 数值模拟 / 多源信息
radial gate / ship collision / cloud model / combination weight / D-S evidence theory / numerical simulation / multi-source information
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