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“xxxxxxxx18”-梳理天下新闻

中国单体最长最xxxxxxxx18重跨铁路悬浇T构转体桥成功转体

来源: 兵器观察
2024-12-12 02:36:01

最佳回答

“xxxxxxxx18”中国单体最长最xxxxxxxx18重跨铁路悬浇T构转体桥成功转体

  中新xxxxxxxx18网曲靖12月11日电 (记者xxxxxxxx18 缪超)11日,中国单体最长、最重跨铁路悬浇T构转体桥——云南宣(威)富(源)高速公路上跨盘西铁路立交桥成功转体,刷新中国悬浇法施工跨铁路T型刚构转体桥新纪录。

图为正在转体中的大桥。云南建投集团 供图

  宣富高速公路上跨盘西铁路立交桥由云南省建设投资控股集团有限公司投资建设、中铁二十五局承建,是宣富高速公路控制性工程之一,位于云南省曲靖市富源县杨二冲附近。

  该立交桥上跨盘西铁路,离铁路最近的墩柱距离仅有17.6米。为最大限度减少对铁路运输的影响,该桥采用转体法施工,平行于铁路线路挂篮悬臂浇筑梁体,最后球铰转动使桥梁跨越铁路后与设计桥位完美重合。

  大桥转体梁长度为169米,主体桥面宽25.7米,桥面面积相当于10个标准篮球场,转体重量2.4万吨,是目前中国单体最长、最重的跨铁路悬浇T构转体桥。

图为大桥转体完成。云南建投集团 供图

  当天,两台自动连续千斤顶牵引带动球铰、上部墩身和梁体,沿球铰中心顺时针旋转,大桥整体转动52度,精准抵达设计位置。

  上跨盘西铁路立交桥采用转体桥工艺,有效减少了对下方既有线路运营的干扰;在施工过程中,下方铁路运输保持正常通行,避免了长时间的线路封锁与停运,保障xxxxxxxx18了人员与物资的顺畅流转,具有良好的经济效益与社会效益。该桥的顺利转体,打通了宣富高速公路的关键节点,为宣富高速公路实现通车目标提供了坚强保障。

  宣富高速公路是云南省县域高速公路“互联互通”工程的重要组成部分,主线全长57.567公里,起于宣威市桃树凹与G56杭瑞高速相接,止于富源县杨二冲与G60沪昆高速相接,顺接在建的富(源)罗(平)高速。截至目前,宣富高速公路项目路基工程已完成91%、桥涵工程已完成76%、隧道工程已完成80%。(完)

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