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【治國理政新實踐·江蘇篇】國內第二大跨鋼桁梁柔性橋連鹽鐵路灌河橋合龍

【連網】(連云港日報全媒體記者 王文)5月31日上午,隨著最后一片橋板面的起吊就位,由中交三航局承建的國內第二大跨度剛桁梁柔性拱橋——灌河特大橋主橋鋼桁梁順利合龍。灌河特大橋是連鹽鐵路跨度最大的特大橋,為全線重難點控制性工程。該橋全長10.4公里,需要40次跨道跨河,而跨越有著蘇北黃浦江之稱的灌河主橋長達470米,是國內第二座采用懸臂拼裝+吊索塔架輔助施工的連續鋼桁梁組合結構鐵路橋梁,其中中鐵第五勘察設計院設計的“加勁腿鋼桁梁柔性拱”為全國首次采用。據了解,連鹽鐵路全長234公里,設計時速200公里,目前全線橋梁、路基主體工程已基本竣工,全線四電及站房工程已全面鋪開,橋梁鋪設正進入最后攻堅階段。預計連鹽鐵路2017年9月建成通車。

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