江底60米的跨年守护

Core Viewpoint - The construction of the Haitai Yangtze River Tunnel, the world's longest underwater highway tunnel, is progressing rapidly despite the Chinese New Year, with a focus on overcoming significant engineering challenges [2][4]. Group 1: Project Overview - The Haitai Yangtze River Tunnel project features a total length of 39.07 kilometers, with the underwater section measuring 11.185 kilometers [3]. - The project employs two domestically produced shield machines, "Jianghai" and "Cangyuan," which are 16 meters in diameter and are crucial for the tunnel's construction [2][3]. - As of now, the right line of the tunnel has completed 4,196 meters of excavation, accounting for 45% of its total length, while the left line has reached 2,150 meters, or 23% of its total length [3]. Group 2: Workforce and Challenges - The average age of the workers operating the shield machines is only 28, highlighting the involvement of a young workforce in this significant infrastructure project [3]. - The project faces world-class challenges, including "super long distance, super large diameter, super high water pressure, and super deep burial" [3]. - The construction team has chosen to work through the Chinese New Year, with over 700 workers remaining on-site to ensure the project's progress during this critical phase [2][4]. Group 3: Impact and Significance - The completion of the Haitai Yangtze River Tunnel is expected to significantly reduce travel time across the Yangtze River, from over an hour to just 10 minutes, enhancing connectivity to Shanghai [4]. - The tunnel is a key component of the "Eight Dragons Crossing the River" strategy in Nantong, contributing to the integrated development of the Yangtze River Delta region [4].