三角防撞桩防船撞性能研究  

A Study of the Triangular Anti-Collision Pile in Anti-Collision Performance

作　　者：孙振宇 SUN Zhenyu(China Railway Fifth Survey and Design Institute Group Co.,Ltd.,Beijing 102600,China)

机构地区：[1]中铁第五勘察设计院集团有限公司,北京102600

出　　处：《国防交通工程与技术》2018年第6期73-76,共4页Traffic Engineering and Technology for National Defence

摘　　要：桥梁防撞设施包含被动防撞设施和主动防撞设施。被动防撞设施因其具有"御敌于国门之外"的独特优势被广泛应用于桥梁防撞设计中。以某三角防撞桩为研究对象,研究了三角桩防船撞性能,同时对三角桩防撞形式的优势和劣势进行了分析。结果表明:当三角桩相对于桥墩位置布置合理时,三角桩能够有效地防止船舶直接撞击桥墩,并且通过自身的形变将船舶撞击时产生的能量耗散。但是,三角桩施工时容易对桥墩附近水文产生影响,同时施工完成后容易引起河道中漂浮物的堆积,且后续发生船撞事故后修复难度较大,需要拔出三角桩,建议慎重采用。The anti-collision facilities of a bridge include the passive anti-collision facilities and the active anti-collision facilities.Having the unique advantage of"resisting the enemy outside the country gate",the passive anti-collision facilities are widely applied to the design of bridges.With a certain triangular anti-collision pile as the object of our study,the anti-collision performance of the triangular pile is studied in the present paper,with both the advantages and disadvantages of the pile in anti-collision analyzed.The result of our study shows that the triangular piles can effectively prevent ships from directly crashing into the piers and dissipate the energy resulting from the collision with their own deformation when they are rationally positioned relatively to the positions of the piers.However,the piles tend to have an effect on the hydrological conditions around the piers when they are provided,and tend to cause the floating things in the river to pile after they are built.Besides,it is very difficult to repair them after a collision accident happens,in which case the triangular piles have to be pulled up.Thus,it is highly advisable that the triangular piles be cautiously used.

关 键 词：桥梁防撞 三角桩 桥墩 撞击 

分 类 号：U443.26[建筑科学—桥梁与隧道工程]