江阴靖江长江隧道主体结构完工

Core Viewpoint - The successful "millimeter-level" docking of two shield machines in the Jiangyin-Jingjiang Yangtze River Tunnel marks the completion of the main structure of this national key project, advancing deep, large-section, long-distance shield tunnel technology and providing critical technical achievements and practical experience for complex geological cross-river and sea super-engineering projects [1] Group 1 - The Jiangyin-Jingjiang Yangtze River Tunnel, constructed by China Communications First Public Bureau Group Tunnel Bureau, features a total length of 4,937 meters and a maximum excavation diameter of 16.09 meters, making it the largest diameter and highest water pressure shield tunnel under construction in China [1] - The project addresses world-class challenges such as shield machine stability and precise docking under high water pressure and strong permeable strata, offering a complete "Chinese solution" for similar global projects [1] - The tunnel is a key project in the comprehensive three-dimensional transportation corridor of the Yangtze River Economic Belt, which will significantly alleviate traffic pressure on the Jiangyin Yangtze River Bridge and enhance the crossing capacity of the Yangtze River trunk line [1]