【甬舟铁路金塘海底隧道开始相向盾构掘进 开启世界最长海底高铁建设新篇章】
中新社宁波5月16日电（王逸飞 尹倩芸）5月16日，我国新建宁波至舟山铁路（简称甬舟铁路）金塘海底隧道宁波侧和舟山侧同时举行盾构掘进启动仪式。两台超大直径盾构机刀盘缓缓转动，标志着世界最长海底高铁隧道建设正式进入盾构掘进阶段，为我国海底高铁隧道建设史上写下新的里程碑。
甬舟铁路金塘海底隧道全长16.2公里，其中海底部分长约8.8公里，是世界最长海底高铁隧道。隧道的建设不仅难度大、技术要求高，而且在我国乃至世界海底高铁隧道建设中具有示范和引领作用。此次相向盾构掘进的成功启动，意味着我国在海底高铁隧道建设技术上再次取得重大突破。
据了解，超大直径盾构机在掘进过程中将面临诸多挑战，如地质条件复杂、高海水压力、长距离独头掘进等。为应对这些挑战，我国科研团队针对性地研发了具有自主知识产权的超大直径盾构机，并采用了世界先进的隧道掘进技术。在施工过程中，还将实行严格的环境保护措施，确保海底生态环境得到有效保护。
甬舟铁路金塘海底隧道工程是甬舟铁路的重要组成部分，甬舟铁路通车后，将大大缩短宁波至舟山的出行时间，有助于优化区域交通布局，推动沿线经济发展，对于进一步畅通长江三角洲地区铁路通道、打造海上丝绸之路经济带具有重要意义。
此次盾构掘进工程的顺利启动，体现了我国基础设施建设实力的不断提升，展现了新时代我国交通事业发展的辉煌成就。在今后的建设中，全体建设者将继续发扬拼搏精神，努力实现金塘海底隧道工程的顺利贯通，为我国海底高铁隧道建设贡献更多力量。
英语如下：
**Title: World’s Longest Undersea High-Speed Rail Tunnel Begins “Journey Through Time”**
Keywords: Ningbo-Zhoushan Railway, Undersea High-Speed Rail, Shield Tunneling.
**News Content:**
[Ningbo, China, May 16] (Reporters Wang Yifei, Yin Qianyun) On May 16, the Ningbo side and the Zhoushan side of the Jinding Undersea Tunnel of the newly built Ningbo-Zhoushan Railway (hereinafter referred to as the Ningbo-Zhoushan Railway) simultaneously held a shield tunneling启动仪式. The two super-large diameter shield machines’ cutter heads rotated slowly, marking the official entry of the world’s longest undersea high-speed rail tunnel into the shield tunneling phase, which writes a new milestone in the history of undersea high-speed rail tunnel construction in China.
The Jinding Undersea Tunnel of the Ningbo-Zhoushan Railway is 16.2 kilometers long in total, with approximately 8.8 kilometers undersea. It is the world’s longest undersea high-speed rail tunnel. The construction of the tunnel not only poses great challenges in terms of difficulty and technical requirements but also serves as a demonstration and leading role in the construction of undersea high-speed rail tunnels in China and even in the world. The successful start of the opposite direction shield tunneling means that China has achieved a significant breakthrough in the construction technology of undersea high-speed rail tunnels.
It is understood that the super-large diameter shield machine will face many challenges during the tunneling process, such as complex geological conditions, high seawater pressure, and long-distance single head tunneling. To address these challenges, China’s research team has developed super-large diameter shield machines with independent intellectual property rights and adopted world-class tunneling technology specifically. Strict environmental protection measures will also be implemented during the construction process to ensure the effective protection of the undersea ecological environment.
The Jinding Undersea Tunnel project is an important part of the Ningbo-Zhoushan Railway. After the opening of the Ningbo-Zhoushan Railway, the travel time between Ningbo and Zhoushan will be greatly reduced, helping to optimize the regional transportation layout and promote the economic development along the line. It is of great significance for further smoothing the railway channels in the Yangtze River Delta region and building the “Maritime Silk Road” economic belt.
The smooth start of the shield tunneling project reflects the continuous improvement of China’s infrastructure construction strength and demonstrates the brilliant achievements of China’s transportation industry in the new era. In the future construction, all builders will continue to embody the fighting spirit, strive to achieve the smooth passage of the Jinding Undersea Tunnel project, and contribute more strength to the construction of undersea high-speed rail tunnels in China.
【来源】http://www.chinanews.com/cj/2024/05-16/10217754.shtml
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