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“海角社区亲子伦视频”-知识课堂

深江高铁全线首海角社区亲子伦视频节段钢梁架设完成

来源: 中国报道
2024-12-01 20:30:58

最佳回答

“海角社区亲子伦视频”深江高铁全线首海角社区亲子伦视频节段钢梁架设完成

  中新海角社区亲子伦视频网广州12月1日电 (郭军 海角社区亲子伦视频蔡武 谢珍)据中铁大桥局1日消息,11月30日10时18分,由厦深铁路广东有限公司投资建设,中铁大桥局承建的深江高铁洪奇沥水道公铁大桥首节段钢梁架设顺利完成,标志着项目建设取得重大进展,主桥上部结构正式进入钢梁拼装阶段。这也是全线架设的首节段钢梁。

深江高铁全线首节段钢梁11月30日在广州架设完成。中铁大桥局 供图

  新建深江高铁正线全长约116公里,中铁大桥局承建的深江高铁8标洪奇沥水道公铁大桥,长度1.41千米,主跨808米,系世界首创的公铁合建超短边跨钢混箱桁组合梁斜拉桥新结构体系,是全线关键控制工程之一。大桥上层为八车道城市快速公路,下层为四线高速铁路。

  该桥钢桁梁高15米,受上下游桥梁通航净空12.5米的限制,采用“纵向分段、横向分块”的大块段架设模式,其中重达500吨的空间桁片需卧式运输至桥位,现场翻转至竖直姿态,再进行起吊安装。

深江高铁全线首节段钢梁11月30日在广州架设完成。中铁大桥局 供图

  据介绍,中铁大桥局专家团队于2024年9月研制出国内首台集“架、存、调”三位一体两侧可不同步起吊的500t+500t架梁吊机,解决了空间桁片起钩不平稳、现场存放和空间姿态精确调整难题;2024年10月研制出船上钢梁翻转机,解决了钢梁在船上(漂浮结构)翻转过程中受风、浪、涌影响安全风险不可控的难题。

深江高铁全线首节段钢梁11月30日在广州架设完成。中铁大桥局 供图

  深江高铁是全国“八纵八横”高铁主通道沿海通道的重要组成,是支持中国(广东)自贸区和粤港澳大湾区建设、落实共建“一带一路”国家倡议,促进泛珠三角、北部湾及海西等重点城市群共同发展的重大基础设施,也是承担中长途和珠三角城际客流的客运铁路。项目建成后,可直接带动粤东粤西与珠三角的区域协调发展,深圳前海自贸片区与广州南沙港自贸片区可实现半小时高铁互联互通。(完)

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