非通航孔桥梁防船舶撞击新型拦阻技术

发布时间：2018-04-09 13:38

本文选题：非通航孔桥梁　切入点：船舶拦阻技术　出处：《桥梁建设》2017年05期

【摘要】：针对现有非通航孔桥梁防船撞技术的不足,提出适用于江海长桥非通航孔桥梁防船撞的新型自适应、恒阻力船舶拦阻技术。自适应、恒阻力船舶拦阻系统由系泊趸船、系泊锚链和混凝土沉块、自适应浮筒、高强度拦阻网、触发钢索以及恒阻力耗能装置组成,其工作原理为:偏航船舶撞击拦阻系统后,自适应浮筒带动拦阻网从水平状态竖起展开,包裹住来撞船首,再通过恒阻力耗能装置吸收船舶动能,拦截住船舶。通过缩尺比模型试验和实船撞击试验模拟该系统拦截船舶的过程,验证了该系统的可行性及工程设计的可靠性;采用水动力计算软件ANSYS-AQWA进行全尺寸数值仿真,仿真结果与试验结果基本一致。
[Abstract]:In view of the deficiency of the existing ship collision prevention technology of non-navigable hole bridge, a new type of adaptive and constant resistance ship blocking technology is proposed, which is suitable for ship collision prevention technology of non-navigable hole bridge of river and sea long bridge.Adaptive, constant resistance ship arresting system consists of mooring barges, mooring anchor chains and concrete sinking blocks, adaptive buoys, high strength arresting nets, trigger cables and constant resistance energy dissipation devices.The working principle is as follows: after the yaw ship impinges on the arresting system, the adaptive buoy drives the arresting net to open up from the horizontal state, wrap the collision bow, and then absorb the ship's kinetic energy through the constant resistance energy dissipation device to intercept the ship.The feasibility of the system and the reliability of engineering design are verified by simulating the process of intercepting ship by scale ratio model test and full-ship impact test, and the full-scale numerical simulation is carried out by using hydrodynamic calculation software ANSYS-AQWA.The simulation results are in good agreement with the experimental results.
【作者单位】：宁波大学冲击与安全工程教育部重点实验室;宁波市高等级公路建设指挥部;宁波工程学院;
【基金】：浙江省科技厅公益技术应用研究项目(2014C33010) 浙江省重点科技创新团队项目(2013TD21)~~
【分类号】：U443.26

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