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社评“肥大BBW肥大BBW肥BBW高”-环球时报

获70项国肥大BBW肥大BBW肥BBW高家专利!来看140座桥梁“撑起”的高铁线→

来源: 蓉城政事
2024-11-30 00:34:47

最佳回答

“肥大BBW肥大BBW肥BBW高”获70项国肥大BBW肥大BBW肥BBW高家专利!来看140座桥梁“撑起”的高铁线→

   今天肥大BBW肥大BBW肥BBW高(11月29日)7时3肥大BBW肥大BBW肥BBW高2分,G5501次列车从南宁东站驶出,标志着南珠高铁南玉段开始开通前的关键阶段——满图试运行,预计年底具备开通条件。正线全长193.31公里、架设桥梁140座、桥梁总长达到125公里,南珠高铁南玉段是一条桥梁“撑起”的高铁线。

  南珠高铁南玉段沿线地下暗河、溶洞众多,岩层破碎,线路多以桥梁形式建设,桥梁占线路总长达65%。

  全线控制性工程六律邕江特大桥主桥长621.5米,主跨320米,按时速350公里设计。岸边的流沙层极易塌孔,对桩基施工带来很大考验。

  国铁南宁局南宁铁路工程建设指挥部高级工程师 张垒:为满足大桥行车要求,我们采用混凝土梁、钢混结合段及钢箱梁三部分组成的设计施工方案,这是目前国内在建时速350公里无砟高速铁路最大跨径钢混矮塔斜拉桥。

  为了克服流沙、斜岩、溶洞等难题,建设者对沿线桥梁设计多种桥型和施工方案。目前,南珠高铁南玉段全线桥梁设计施工累计获得国家专利70项。(肥大BBW肥大BBW肥BBW高总台央视记者 李伟代 张卉 何柏霖)

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