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解惑“明星angelababy造梦”-知识课堂

中国自主研明星angelababy造梦制最大直径盾构机在长沙下线

来源: 中国妇女报
2024-10-31 15:15:12

最佳回答

“明星angelababy造梦”中国自主研明星angelababy造梦制最大直径盾构机在长沙下线

  中新明星angelababy造梦社长沙10月31日电 明星angelababy造梦(向一鹏 胡清)最大开挖直径达16.64米的超大直径盾构机“江海号”31日在湖南长沙下线,将应用于目前世界最长公路水下盾构隧道——海太长江隧道施工。这是中国迄今自主研制的最大直径盾构机。

10月31日,直径达16.64米的中国自主研制最大直径盾构机在长沙下线。向一鹏 摄

  上述盾构机整机长约145米,总重量约5000吨,由中国铁建重工集团、中铁十四局集团联合打造。“江海号”是以海太长江隧道工程跨越长江、毗邻大海两个意向融合命名,其刀盘涂装有向前进击的蔚蓝色巨浪。

  海太长江隧道位于江苏省长江入海口区域,北起南通海门区,南至苏州太仓市。工程线路全长39.07公里,过江隧道长11.185公里,其中盾构隧道段长9315米,最大开挖直径达16.64米,沿线需穿越淤泥质粉质黏土夹粉土与粉细砂复合地层等复杂地质带,最大埋深约75米,最高水压达7.5巴,具有超长距离、超大直径、超高水压、超大埋深、复杂工况等特点。

  “针对项目施工风险和难点,研制团队通过创新攻关,在刀盘刀具、主驱动等关键部件上采取针对性设计,配置具有常压换刀功能的软土刀盘和合金大、硬度高、覆盖广、耐磨强的切削刀具,主驱动配置伸缩功能,有效避免特殊情况下刀盘异常受力造成的主轴承过载,方便换刀作业、辅助刀盘脱困;并配置主驱动状态监测系统,对主驱动运行状态进行连续监控。”铁建重工掘进机研究设计院高级工程师范瑞强介绍,同时,团队因地制宜设计盾体外形尺寸、结构厚度,增大油缸规格,优化泥浆环流系统和注浆系统等,强化整机性能,配置管片连接构件智能拼装系统,以满足工程施工需求。

  “江海号”的成功下线,标志着中国在16米级超大直径盾构机研制和应用领域实现新跨越,已形成超大直径盾构机全产业链产业化发展能力。(完)

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