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“漂亮的小䧅子6”-知识课堂

武汉第13座漂亮的小䧅子6长江大桥锚碇沉井钢壳拼装完成

来源: 看看新闻
2024-12-09 17:29:33

最佳回答

“漂亮的小䧅子6”武汉第13座漂亮的小䧅子6长江大桥锚碇沉井钢壳拼装完成

  中新漂亮的小䧅子6网咸宁12月6日电 (冉宏华 漂亮的小䧅子6黄珊 龙钰)随着最后一道焊缝焊接完成,由武汉城发集团所属交投集团汉南桥公司投资建设,中交路桥建设有限公司承建的公路工程世界第一大沉井——汉南长江大桥南锚碇沉井钢壳6日拼装完成,即将进入混凝土浇筑。

正在施工中的汉南长江大桥。黄珊 摄

  汉南长江大桥是武汉第13座长江大桥,也是武汉都市圈环线高速公路重要组成部分。该工程起于武汉市蔡甸区通航产业园,途经蔡甸、汉南,跨越武监高速,跨江后穿越咸宁市嘉鱼县簰洲湾镇、潘家湾,上跨武深高速,止于武汉市江夏区山坡街南侧,全长72.461公里,设计时速120公里。其中,大桥全长2.894公里,为主跨1600米双塔单跨钢箱加劲梁悬索桥,也是湖北省目前最大跨径双主缆八车道悬索桥,设计时速120公里。

  大桥锚碇采用整体式沉井基础,其中沉井钢壳段高8米,平面尺寸76.4米76.4米,相当于14个篮球场大小,15层楼高,钢壳总重达3147吨,是目前公路工程世界第一大沉井。

汉南长江大桥项目效果图。施工方提供。

  项目团队聚焦施工目标,综合施策、精准发力,通过“数智建造+BIM+智慧工地”的解决方案,实现对人、机、料、法、环全面智能化管理,通过开展地基承载力试验、多向测控定位等工作,严格控制软土地基承载力及钢壳拼装精度,确保了沉井钢壳顺利完成拼装。

  锚碇是一座大桥的“压舱石”,也是“定海神针”,由沉井和锚体组成。如此大的“巨无霸”,常规拼装方法费时费力。施工方中交路建项目经理李忠周介绍,项目首次创新大型沉井装配化快速建造技术,在预制厂内将隔墙分块预制成半成品,通过平板车运输至现场,再将预制的隔墙逐块组拼成形,拼装就像搭积木一样快捷、方便。

  据悉,汉南长江大桥作为全线重点控制性工程,建成后对落实国家战略,发挥交通先导作用,完善区域高速公路网体系结构,优化长江过江通道布局,引领武汉城市圈同城化发展具有重要意义。(完)

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