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社评“jjzz女学校”-知识课堂

成达万高铁jjzz女学校遂宁涪江特大桥主塔顺利封顶

来源: 看看新闻
2024-12-29 00:28:52

最佳回答

“jjzz女学校”成达万高铁jjzz女学校遂宁涪江特大桥主塔顺利封顶

  中新jjzz女学校网遂宁12月28日电 (jjzz女学校记者 刘忠俊)12月28日,经过7个小时的连续浇筑,新建成都至达州至万州高速铁路(以下简称“成达万高铁”)全线控制性工程遂宁涪江特大桥主塔顺利封顶,为后续施工奠定了坚实基础。

正在建设中的成达万高铁涪江特大桥(中间),旁边的铁路大桥上一列动车组快速通过。记者 刘忠俊 摄

  成达万高铁涪江特大桥位于四川省遂宁市船山区境内,是全线“3隧4桥”重难点控制性工程之一,大桥长5585.4米。主桥为“H”型特殊结构双塔双索面钢混结合梁斜拉桥,主跨长305米,是双塔双索面钢混结合梁斜拉桥中主跨长度位居西南第一,全国第二。

  据了解,涪江特大桥主塔分别为江岸边的90号塔和江心的91号塔,两座塔高分别为118米和122米,相当于40层楼高。“主塔相当于人的躯干,斜拉索就像两条手臂,主塔封顶意味着躯干立起来了,这样手臂才得以延伸,进而把桥面‘提’起来。”中铁十七局成达万高铁项目二工区总工程师单立国称,大桥主塔分为上中下三部分塔柱以及上下两个横梁,属于典型的高空高风险作业。

成达万高铁涪江特大桥118米高的90号塔顶上,工人师傅正在进行大桥主塔封顶混凝土浇筑施工。记者 刘忠俊 摄

  为保证桥梁安全顺利浇筑,参建团队引入了AI无人机智能巡检系统,对涪江特大桥主塔、连续梁、移动模架等高风险工点进行智能巡检确保施工安全。

  记者登上118米高的90号塔尖,感觉心里有点发慌。冷静一看,狭小的塔顶上工人们分工合作,身后都拉着一根长长的“尾巴”,大家都在抓紧最后的封顶混凝土浇筑施工作业。“目前,成达万高铁沱江、涪江、嘉陵江和渠江上四座特殊结构控制性桥梁工程主塔全部完工。”成达万高铁公司遂宁指挥部指挥长李升平表示,大桥建设过程中,建设者们通过BIM建模等,对主桥整体模型、各类细部结构等模型统一管理,提高了工序衔接及施工效率,保障了工程质量。

成达万高铁涪江特大桥主塔封顶施工现场。记者 刘忠俊 摄

  成达万高铁是我国“八纵八横”高铁网沿江通道的重要组成部分,正线全长477公里,设计时速350公里。线路西起四川成都市天府站,途经资阳市、遂宁市、南充市、达州市及重庆市开州区、万州区,接入既有郑渝高铁万州北站。建成后将形成成都直达中原和京津冀地区的便捷客运通道,极大方便沿线群众出行。(完)

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