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First Jacket of the Main Tower Pier of Pingtan Bridge Successfully Launched into the Sea

2015-05-08 563 0人评论

　　5月1日，中铁大桥局福平铁路平潭大桥目前最大的辅助施工设备——主塔Z03号墩第一榀导管架顺利入海。

　　由中铁大桥局五公司负责施工的平潭海峡公铁两用跨海大桥主塔Z03号墩位于平潭海峡5000吨级鼓屿门航道上。此航道风大浪高涌急流紊、地质异常复杂、来往船只密集，给钢护筒插打造成极大困难，严重影响了主塔基础施工进度。

　　经过反复商讨，项目部决定参考1号栈桥钢护筒导向架的设计理念，利用最先进的海底三维成像技术，因地制宜、精心设计出导向架整体制作及吊运拼装方案：将导管架分为A、B、C三个单元，在岸上码头制造完成后分别顶推至海边，由浮吊船吊运至Z03号墩海域，进行定位下放，打入支承桩固定，再连成整体，形成主塔施工平台，这样就成功将海上施工变为陆地施工，从而降低了海上平台施工的难度与风险。三榀导管架最重的一榀达1470吨，此次吊运安装的为A单元，长63 米，宽31米，高48.36米，吊重1292吨。

First Concrete Pour Achieved at Huangdeng Hydropower Station Dam

First Section Concrete Heightening Completed for the First Side Pier Caisson of the Shanghai-Nantong Yangtze River Bridge

First Jacket of the Main Tower Pier of Pingtan Bridge Successfully Launched into the Sea

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First Jacket of the Main Tower Pier of Pingtan Bridge Successfully Launched into the Sea

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