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解惑“爽玩醉酒直男Gay2o22”-梳理天下新闻

世界跨度最大爽玩醉酒直男Gay2o22公铁两用大桥迎突破性进展

来源: 山西晚报
2024-12-21 12:50:21

最佳回答

“爽玩醉酒直男Gay2o22”世界跨度最大爽玩醉酒直男Gay2o22公铁两用大桥迎突破性进展

项目爽玩醉酒直男Gay2o22施工现场。中铁大桥局 供图爽玩醉酒直男Gay2o22

  中新网舟山12月19日电(王逸飞 张静 郭少山)19日,浙江舟山西堠门水道的海面上,随着3700立方米混凝土全部浇筑完成,历经40个小时的奋战,甬舟铁路西堠门公铁两用大桥首个主塔下横梁浇筑完成,标志着世界跨度最大的公铁两用大桥建设取得突破性进展。

项目施工现场。中铁大桥局 供图

  西堠门公铁两用大桥是甬舟铁路及甬舟高速公路复线跨越西堠门水道的共用跨海桥梁,连接舟山市金塘岛和册子岛。大桥主跨1488米,是世界跨度最大的公铁两用大桥,桥面宽68米,是世界最宽的跨海大桥。其为公铁平层设计,中间通铁路,两侧通公路。其中,铁路为双线客运专线,设计时速250公里;公路为双向6车道高速公路,设计时速100公里。

  本次浇筑的主塔下横梁,相当于人的肩膀,后期将与拉索一同承担起钢粱和六线公路以及两线铁路的载重。中铁大桥局西堠门公铁两用桥项目党工委书记、常务副经理李永旗介绍,“本次浇筑的模块长44米、宽10米、高8米,共计浇筑混凝土3700立方米,创下了跨海大桥墩身施工中一次性浇筑最大方量世界纪录。”

项目施工现场。中铁大桥局 供图

  据介绍,本次施工前,中铁大桥科学研究院对混凝土配比进行了优化,基于自主研发的新型降黏复合材料,制备出了具有低水化热、高抗裂、易泵送等特点的高强混凝土;项目部联合中铁大桥局设计分公司在做施工方案设计时反复进行论证,并在施工前对工人进行了详细培训并划定区域责任到人,矩阵到人,分工协作。同时对支撑钢架进行了全过程监控监测,避免因为钢架变形对浇筑造成影响。

  西堠门公铁两用大桥是甬舟铁路的控制性工程。甬舟铁路线路运营长度77公里,建成后将补齐浙江“市市通高铁”的最后一块“拼图”。(完)

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