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贯通时间定了!港珠澳大桥海底隧道马上迎来历史性时刻……
重磅消息
世界最长、埋水最深的海底隧道
即将在伶仃洋上迎来
全线贯通的历史时刻
这个被称作交通工程中的“珠峰”
即将实现历史性的海底跨越
今天,记者从港珠澳大桥管理局举行的隧道贯通媒体通气会上获悉,港珠澳大桥海底隧道贯通仪式将于7日举行。
交通工程中的珠穆朗玛峰
港珠澳大桥全长55公里,是当今世界最长的跨海通道。因海面航道通航的需要和受空中航道限高的影响,其中的海底隧道被深埋在位于伶仃洋航道的东西人工岛之间48米深的海底。
“最终接头”安放的瞬间 李建束/摄
戳视频更震撼
↓↓↓
该隧道由东西岛头的隧道预埋段和每节排水量达8万吨的33节预制沉管以及长约12米重达6500吨的“最终接头”拼接而成,全长约6.7公里,是迄今为止世界最长、埋入海底最深(最深处近50米)、单个沉管体量最大、使用寿命最长、隧道车道最多、综合技术难度最高的沉管隧道。该隧道与东西两个人工岛一起,被称为港珠澳大桥核心控制性工程,也被称为交通工程中的“珠穆朗玛峰”。
港珠澳大桥的岛隧工程由中国交建等5家单位组成的联合体承建,大桥建设者自2011年1月正式开展海上补充勘察及西人工岛测量平台打桩作业以来,拉开了长达7年海上施工的序幕。
近千名海上建设大军秉承并发扬“每一次都是第一次”的岛隧核心理念,经受住超长建设周期的考验,克服了孤船孤岛作业的枯寂,战胜了外海复杂环境下引发的各项挑战,各类施工船舶在伶仃洋万顷碧波上百舸争流、争相竞荣。
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