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五、座座巨桥飞架,天堑变通途(一)最早的三座黄河铁桥我从幼时读的课本上,知道黄河有三大铁桥。即济南的泺口桥、郑州的荥泽桥、兰州的皋兰桥。这三座大桥中,前两桥是为铁路通过黄河而建,是作为铁路建设工程的组成部分。现在一般称:济南黄河大桥、郑州黄河大桥、兰州黄河大桥。京汉铁路(北京至汉口),于1898-1906年建成。津浦铁路(天津至南京浦口),于1908-1911年建成。郑州与济南的黄河大桥,由于年代已久,桥体构件老化,再加洪水的冲击、损毁,百年来已多次修复。随着这两条铁路大干线的更新、改造,特别是近年高速铁路的建成、通车,这两处大桥,均已重建。
Fifth, the seat giant bridge flying frame, natural moat change thoroughfare (A) The earliest three Yellow River Iron Bridge I read from the textbooks, I know the Yellow River has three major iron bridge. That is, Qiaokou Bridge in Jinan, Zhengzhou Ze bridge, Lanzhou Gaolan Bridge. Among the three bridges, the first two bridges are built for the railway through the Yellow River and are an integral part of the railway construction. Now generally said: Jinan Yellow River Bridge, Zhengzhou Yellow River Bridge, Lanzhou Yellow River Bridge. Beijing-Hankou Railway (Beijing to Hankou), completed in 1898-1906. Jinpu Railway (Tianjin to Nanjing Pukou), built in 1908-1911. As the Yellow River Bridge in Zhengzhou and Jinan, due to the ages, the bridge components aging, coupled with the impact of floods, damage, a hundred years has been repeatedly repaired. With the renewal and renovation of the two major rail lines and the completion of the high-speed railway in recent years, the two major bridges have been rebuilt.