江阴靖江长江隧道建设进入收尾阶段，攻克盾构江底对接世界级难题

Core Viewpoint - The Jiangyin-Jingjiang Yangtze River Tunnel project is a significant infrastructure development aimed at enhancing transportation efficiency in the Yangtze River Economic Belt, marking a milestone in China's tunneling technology and capabilities [1][3][5]. Group 1: Project Overview - The Jiangyin-Jingjiang Yangtze River Tunnel spans 11.825 kilometers, featuring a dual six-lane highway design with a speed limit of 80 km/h [1]. - The tunnel is expected to alleviate traffic pressure on the Jiangyin Yangtze River Bridge and improve the transportation network in the Yangtze River Delta region [1]. Group 2: Technical Innovations - The project utilized a groundbreaking underwater connection technology, allowing two large-diameter shield machines to meet precisely at the riverbed, overcoming challenges posed by high water pressure and permeable geological conditions [3][5]. - The integration of artificial intelligence, big data, and IoT technologies in the development of the shield machines has enhanced their intelligence and environmental adaptability [3]. Group 3: Industry Impact - The successful implementation of the underwater connection technology represents a significant advancement in global tunneling practices, addressing limitations of traditional single-machine tunneling methods [5]. - The project is seen as a milestone in China's transition from a "shield machine power" to a "shield machine strong country," showcasing the innovative capabilities of Chinese enterprises in extreme conditions [5].