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鏡觀(guān)中國·新華社國內新聞?wù)掌恢芫x

2020-01-07 08:08來(lái)源：新華網(wǎng)

　　天塹變通途

　　這是2019年12月30日拍攝的主體建成后的大瑞鐵路怒江特大橋（無(wú)人機照片）。 當日，由中鐵十八局集團承建云南大理至瑞麗鐵路怒江特大橋主體建成，標志著(zhù)大瑞鐵路重難點(diǎn)工程建設取得重大突破。 大瑞鐵路怒江特大橋位于云南省保山市施甸縣與龍陵縣交界處，全長(cháng)1024.2米，橋面寬度約25米，設計為四線(xiàn)車(chē)站橋。大橋主跨為單跨達490米的鋼桁拱，是目前世界上鐵路拱橋的最大跨度。據悉，大瑞鐵路建成通車(chē)后，大理到瑞麗的行車(chē)時(shí)間將由現在公路運輸的6小時(shí)縮短到2個(gè)小時(shí)左右。 新華社記者楊宗友攝

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[責任編輯：李曉蕾]

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