昨天（11月21日），南京至芜湖铁路扩能改造控制性工程——南京南隧道盾构段顺利贯通。 宁芜铁路以货运为主、兼顾客运，是提升长江经济带东段货运能力的重要基础设施，也是沿江铁路通道 的重要组成部分。其扩能改造工程将原本穿南京城而过的路段外迁至城市外围，并新建南京南隧道等关 键节点，建成后将进一步优化区域铁路网布局，助力沿线地区产业结构升级调整。 南京南隧道盾构段长约2.4公里，先后下穿农花河、机场高速、秦淮新河等区域，沿线地质复杂、地表 建筑物密集，项目团队采用"微扰动掘进+精准导向"技术，确保安全掘进。 ...

Core Points - The completion of the Yanzhou North Station expansion project enhances the operational efficiency of the station and strengthens the connectivity of the Beijing-Shanghai and Xin-Yan railways [14] Group 1 - The construction involved a total of 270 minutes of blocking work, with multiple professional teams collaborating to complete key switching operations over a distance of 3.1 km of newly built railway [5] - The project faced challenges such as tight construction time, large engineering volume, high safety risks, and multiple coordination points, which were addressed through advanced management and planning strategies [9] - Nearly 1,000 workers were deployed, along with 18 excavators, and drone technology was utilized for real-time monitoring and unified scheduling [9] Group 2 - The Yanzhou North Station is the largest railway freight marshalling station in southwestern Shandong and serves as a critical support point in the province's railway freight network [14] - The expansion project facilitates a smooth transition between existing and new railway lines, promoting an overall upgrade in the regional railway network's functionality [14]