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社评“bbwchina”-梳理天下新闻

“长江上游轨道第bbwchina一隧”全段贯通

来源: 河北日报
2024-11-27 07:00:09

最佳回答

“bbwchina”“长江上游轨道第bbwchina一隧”全段贯通

  中新bbwchina社重庆11月25日电 (张旭)bbwchina有“长江上游轨道第一隧”之称的重庆轨道交通27号线穿江隧道于25日实现全段贯通,该隧道是重庆轨道交通首条穿江隧道。

  作为重庆轨道交通27号线的重要控制性节点工程,穿江隧道连接重庆市渝中区、南岸区,所跨长江两岸高楼林立,岸滩高差大,河滩狭窄,施工难度大。

  承建单位中铁一局介绍,穿江隧道建设过程中,需攻克超深竖井安全始发、江底深槽破碎带、高水压密封掘进等技术难题。相关施工的完成,填补了长江上游穿江隧道在该领域的空白,为中国乃至世界类似工程建设提供宝贵经验。

  值得一提的是,在建设过程中,项目团队量身定做了“渝江号智能双模盾构机”。该盾构机总长135米,总重1350吨,在国内在建的轨道交通盾构机中,亦属于巨型的“钢铁穿山甲”。此外,该设备采用具备“一键切换”功能的智能双模盾构,可迅速实现泥水盾构与土压盾构的模式转换。

  项目业主方重庆市铁路(集团)有限公司介绍,bbwchina重庆轨道交通27号线全长56公里,设计时速140公里,以快线形式串联起当地重要门户枢纽(含铁路重庆东站、重庆站、沙坪坝站等),全线设15座车站,建成后,将在线路两端与重庆市域(郊)铁路贯通运营,实现城市内外交通快速转换,并极大缓解重庆轨道线网东西向客流压力。(完)

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