技术能力显著提升 国际化步伐不断加快 国产盾构机高效开挖样样在行 我国自主研制的全球最大直径竖井掘进机"启明号"1月13日正式始发。 从高空俯瞰，"启明号"如同一只巨大的"八爪鱼"，稳稳撑起整个竖井。2个截割机械臂深入水下，实现 高效开挖。 这台2025年研制成功的新产品，一改传统盾构机只能横着挖的局限，可实现垂直向下挖掘，弥补了传统 竖井施工效率低、风险大的短板。 盾构机，被誉为"工程机械之王"。如今，我国盾构产业呈现市场规模持续扩张、技术能力显著提升、国 际化步伐不断加快等特征。全球每10台盾构机就有7台来自中国，中国盾构机核心部件国产化率超 90%。 "'焦煤号'的成功研制，为大断面、大倾角、高应力等复杂地质条件下的岩巷掘进探索出一条新路径， 使极硬岩掘进效率提升40%，成本降低60%，为保证矿井采掘有序接替创造了条件。""焦煤号"技术负责 人张广辉说。 "领航号"成功掘进超万米，挑战盾构机使用极限；"永宁号"以近40度倾角精准贯通两条千米级斜井…… 国产盾构技能持续升级，可实现立体空间全方位、多角度掘进。 由小变大、由大变小无级调节，国产盾构机练就独门绝技。 诞生近200年，传统盾构机都是"一生一径" ...

我国自主研制的全球最大直径竖井掘进机"启明号"1月13日正式始发。 "领航号"成功掘进超万米，挑战盾构机使用极限；"永宁号"以近40度倾角精准贯通两条千米级斜井…… 国产盾构技能持续升级，可实现立体空间全方位、多角度掘进。 从高空俯瞰，"启明号"如同一只巨大的"八爪鱼"，稳稳撑起整个竖井。2个截割机械臂深入水下，实现 高效开挖。 这台2025年研制成功的新产品，一改传统盾构机只能横着挖的局限，可实现垂直向下挖掘，弥补了传统 竖井施工效率低、风险大的短板。 盾构机，被誉为"工程机械之王"。习近平总书记在中铁工程装备集团有限公司考察时强调："推动中国 制造向中国创造转变、中国速度向中国质量转变、中国产品向中国品牌转变。" 如今，我国盾构产业呈现市场规模持续扩张、技术能力显著提升、国际化步伐不断加快等特征。全球每 10台盾构机就有7台来自中国，中国盾构机核心部件国产化率超90%。 高效开挖、样样在行，国产盾构技艺高超。 河南能源焦煤中马村矿，一场革新正悄然展开。 只见"焦煤号"掘进机犹如一只灵活的蚯蚓，在地下掘出迷宫式的岩巷。即使面对强度超140兆帕的极硬 岩石，"焦煤号"的"铁齿铜牙"也能轻松"啃下"。 作为一名 ...

Core Viewpoint - The successful completion of the Chongqing Caiyuanba Yangtze River Railway Tunnel marks a significant advancement in China's underwater shield tunneling technology, showcasing the country's ability to construct complex infrastructure projects with high precision and safety [2][3][11]. Group 1: Project Overview - The Chongqing Caiyuanba Yangtze River Railway Tunnel is approximately 11.9 kilometers long, connecting the Yuzhong District and the Nan'an District of Chongqing, and it traverses four different environments: mountain, city, water, and river [3]. - The underwater section of the tunnel is 1,282 meters long, with challenging geological conditions including varying mudstone and sandstone, and a minimum cover thickness of only 10 meters [3][4]. Group 2: Technology and Equipment - The project utilized a domestically designed large-diameter slurry balance shield machine named "Yangtze No. 1," which has a diameter of 12.66 meters and weighs approximately 3,500 tons [5]. - The shield machine is equipped with a high-precision gas-liquid pressure balance control system, allowing for precise adjustments to withstand significant water and soil pressure during tunneling [5][6]. Group 3: Construction Techniques - Innovative techniques such as precise tunnel axis control and intelligent shield management were applied, enabling real-time data collection and cloud-based collaborative management [6]. - The construction process was conducted entirely underground, minimizing disruption to surface traffic and urban life, marking it as the first high-speed rail large-diameter shield project in China to complete all operations underground [7]. Group 4: Historical Context and Development - The development of underwater tunneling technology in China has evolved significantly over the past two decades, transitioning from reliance on imported technology to achieving self-sufficiency and leading in the field [12][14]. - The successful construction of the Wuhan Yangtze River Tunnel in 2008 and the Nanjing Yangtze River Tunnel in 2009 marked critical milestones in the advancement of China's underwater shield tunneling capabilities [10][11]. Group 5: Industry Competitiveness - China's shield machine industry has rapidly advanced, achieving a 60% share of the global market and developing machines with diameters ranging from 2 meters to 16 meters [12]. - Despite significant progress, challenges remain in the ultra-large diameter shield machine sector, particularly in the complete localization of key components [14].