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突破“建桥禁区”

2017-08-23 07:53:06   中国青年网

22日,中铁大桥局在平潭海峡公铁两用大桥施工现场举行庆祝仪式 新华社发

据新华社福州8月22日电 22日,由中铁大桥院设计、中铁大桥局施工的平潭海峡公铁两用大桥首孔简支钢桁梁成功架设,标志着我国首座跨海峡公铁两用大桥建设取得突破性进展。

平潭海峡公铁两用大桥首孔简支钢桁梁长80米、宽35.5米、重达1350吨,由“大桥海鸥号”起重船担负吊装作业。平潭海峡公铁两用大桥起于福建省长乐市松下镇,经过4座岛屿后到达平潭岛。大桥全长16.34公里。是世界上最长的跨海峡公铁两用大桥。大桥下层设计为时速200公里的双线I级铁路,上层设计为时速100公里的六车道高速公路。桥址所在的平潭海峡,为世界三大风口海域之一,具有风大、浪高、水深、流急等特点,曾被称为“建桥禁区”。

中铁大桥局董事长、福平铁路FPZQ-3标项目经理刘自明说,平潭海峡公铁两用大桥是我国目前施工难度最大的桥梁。

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