世界最大跨度时速350公里独塔混凝土斜拉桥合龙|四虎成人www成人影视网址
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9月18日,世界最大跨度时速350公里独塔混凝土斜拉桥——昌九高铁南昌扬子洲赣江公铁大桥跨赣江南支主桥合龙。
昌九高铁南昌扬子洲赣江公铁大桥是一座集高铁、城市快速路等14条通道于一体的大型工程,全长19公里,跨越江西最大河流赣江三条支流,设西支、中支、南支三座主桥,包含双塔双层斜拉桥、单塔单层斜拉桥、双层连续梁桥三种桥型,工程建设创造了多项世界纪录。
其中,中支、西支主桥已分别于今年1月、5月完成合龙。此次合龙的昌九高铁跨赣江南支主桥,为混凝土独塔斜拉桥,全长510米,主跨240米,塔高108米,呈花瓶造型。至此,昌九高铁跨赣江主桥全部合龙。
据了解,此次南支主桥合龙后,下一步将进行附属结构施工,预计10月底实现全桥贯通。昌九高铁全长138公里,设计时速350公里,是中国“八纵八横”高速铁路网京港通道的重要组成部分,预计2027年3月全线具备开通运营条件。(记者 华山)
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