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社评“gb14may18_XXXXXL56endian خوتۇن سىكىش ؟”-梳理天下新闻

上海至崇明gb14may18_XXXXXL56endian خوتۇن سىكىش ؟岛地铁长江隧道南段率先完成穿越

来源: 观察者网
2024-11-19 04:25:11

最佳回答

“gb14may18_XXXXXL56endian خوتۇن سىكىش ؟”上海至崇明gb14may18_XXXXXL56endian خوتۇن سىكىش ؟岛地铁长江隧道南段率先完成穿越

  中新gb14may18_XXXXXL56endian خوتۇن سىكىش ؟网上海11月18日电 (gb14may18_XXXXXL56endian خوتۇن سىكىش ؟记者 张亨伟)近日,在上海轨道交通22号线(崇明线)越江盾构浦东接收井内,“申通号”盾构机刀盘缓缓向前探出,标志着22号线(崇明线)已率先完成了长江隧道南段部分(长兴岛-浦东)的穿越。

上海轨道交通22号线(崇明线)越江隧道。申海 摄

  此次贯通的南港越江大盾构区间长约7.74公里,采用直径13.5米、总长148米的超大泥水气平衡盾构机进行掘进,是上海轨道交通“穿越长江第一隧”工程的重要一环。

  施工方隧道股份上海隧道工程有限公司表示,隧道位于长江江面下34米处,项目团队通过详尽勘探,以及盾构机AI辅助驾驶,确保了盾构精准抵达。最终,南港大盾构隧道区间轴线偏差控制为5cm,精度高于常规盾构标准一倍;34821块管片严丝合缝,实现了隧道施工“0”渗漏。

  上海轨道交通22号线(崇明线)作为快速联系崇明区与上海中心城区的轨道交通线路,途经浦东新区、长兴岛和崇明岛,全长约42公里,共设8座车站、6个工作井和2座停车场。目前,盾构推进已累计完成24.4公里,包括南港段隧道已贯通,北港段隧道已推进7.9公里。(完)

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