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社评“揉我奶⋯啊⋯嗯高潮H”-梳理天下新闻

广西钦州北过揉我奶⋯啊⋯嗯高潮H境线公路钦江特大桥顺利合龙

来源: 南方都市报
2024-12-05 23:18:54

最佳回答

“揉我奶⋯啊⋯嗯高潮H”广西钦州北过揉我奶⋯啊⋯嗯高潮H境线公路钦江特大桥顺利合龙

  中新揉我奶⋯啊⋯嗯高潮H网钦州12月5日电 (彭揉我奶⋯啊⋯嗯高潮H瑾 周小东)广西钦州北过境线公路项目重点控制性工程——钦江特大桥最后一个节段5日顺利合龙,标志着大桥主体工程正式完工,为实现2025年通车目标奠定了坚实基础。据了解,钦州北过境线公路是广西实施国家战略高速公路网规划《广西高速公路网规划(2018—2030年)》中12条过境线之一,由中国能建葛洲坝一公司承建。

图为合龙仪式现场。高国杰 摄

  钦江特大桥全桥总长1873米,主跨245米,是钦州北过境线公路项目的关键控制性工程。其中,主桥由两座矮塔斜拉桥组成,采用整幅布置,标准宽度为28.5米,引桥分幅布置,标准宽度为26.0米。横跨平陆运河航道,大桥主跨设为双向通航孔,设计通航净高18米,满足规划平陆运河设计代表船型通航要求,并为远期平陆运河代表船型升级预留了一定的发展条件。

  “自2022年3月17日开始桩基施工以来,项目团队克服重重困难,历时995天,圆满完成了大桥主体工程。”中国能建葛洲坝一公司钦州北总承包项目部党支部书记陈志伟表示,钦州北过境线公路项目预计2024年完成前21公里全部施工任务。

  “主梁施工为悬臂节段现浇施工工法,最大悬臂总重量为23765吨,施工期间结构应力极为复杂。”陈志伟表示,钦江特大桥主桥上部结构主梁采用单箱三室大悬臂直腹板预应力混凝土展翅宽幅箱梁,主梁与主墩为墩梁固结结构,斜拉揉我奶⋯啊⋯嗯高潮H索布置为间隔梁段布置,对桥梁线型控制提出了极高要求。

  为确保浇筑工作顺利进行,项目团队采用“有限元建模分析预测+同步数据监测+工况验证分析”的桥梁线型控制技术手段,科学研究不同工况下的变形和应力应变控制,针对全桥成桥变形和应力应变控制进行详细分析,制定专项方案,实时监测应力与变形情况。最终,钦江特大桥合龙处标高偏差精度控制在毫米级。

  作为西部地区唯一的沿海门户,广西是国家规划的西部陆海主通道的出海口,在深化陆海双向开放、推动西部大开发形成新格局中发挥着重要作用。据了解,该项目建成后,将结束钦州市“零环城高速”的历史,将有效缓解兰海高速公路钦州西南环城段的交通压力,提升高速路网的整体效益,对助力广西积极参与西部地区对内对外开放,高水平共建西部陆海新通道,促进中国—东盟自由贸易区的发展具有重要意义。(完)

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