成达万高铁德公村特大桥8500吨转体梁顺利完成转体|少妇与拘做受xxxxⅹxx

  中新网成都10月16日电 (记者 刘忠俊)10月16日,经过100分钟的紧张施工,新建成都至达州至万州高速铁路(以下简称“成达万高铁”)德公村特大桥的转体梁逆时针旋转50度,顺利抵达指定位置,圆满完成上跨既有沪蓉铁路的施工任务。此举标志着成达万高铁建设取得新突破,为全线按期通车奠定坚实基础。

大桥转体前。成达万高铁公司供图

  成达万高铁德公村特大桥坐落于四川省遂宁市安居区,全长约3876米。此次完成转体的梁体长128米、梁面宽12.6米,转体总重量达8500吨,需跨越运营中的沪蓉铁路。据悉,沪蓉铁路高峰期日均开行列车193列,平均每3至5分钟就有一趟列车通过,列车运行密度极高。为最大限度降低对既有营业线正常运营的影响,建设团队创新采用“平行营业线浇筑梁体,再利用天窗时间实施转体”的施工方案。

  “此次转体施工依托智能监控信息化平台,融合测量机器人无线传输技术与BIM数字孪生技术,搭建起转体过程实时监测及预警系统。该系统可动态展示气象信息(风速、风向)、转体控制参数(角度、角速度等)、梁体姿态(标高)等关键指标,还能动态模拟整个转体轨迹,提前预判可能出现的碰撞风险并开展分析预警,为转体施工的指挥决策提供精准数据支撑。”中建八局成达万高铁工程指挥部指挥长李强华介绍,大桥转体过程以平均每分钟0.9度的速度匀速牵引,最终实现轴线偏差仅5毫米、高程偏差仅3毫米的高精度对接。

重达8500吨转体桥梁完成转体到位。成达万高铁公司供图

  成达万高铁公司遂宁建设指挥部指挥长李升平表示,德公村特大桥转体的顺利完成,不仅为成达万高铁成(都)营(山)段按期开展架梁作业扫清障碍,更为后续全线施工的高效推进奠定了基础。

  据了解,作为我国“八纵八横”高速铁路网沿江通道的重要组成部分,成达万高铁线路西起四川省成都市天府站,途经四川省资阳市、遂宁市、南充市、达州市以及重庆市开州区、万州区,最终接入既有郑渝高铁万州北站。线路正线全长477公里,设计时速350公里。(完)

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发布于:北京市