续建9号线一期。截至2025年12月，车站已完成所有主体结构，正在开展附属结构施工。31条盾构隧道始发，其中30条盾构隧道贯通。具备条件的区段开 展轨道铺设施工。 续建11号线一期。截至2025年12月，18座车站已开工，其中17座车站完成主体结构。33条盾构隧道始发，其中32条盾构隧道贯通。 续建宁马线，已通过项目验收，正进行不载客试运行。 续建宁滁线(南京段)，地下段推进施工前期准备工作，高架区段推进土建施工。 续建宁扬线(南京段)。截至2025年12月，3座车站及3个高架区间推进土建施工，其中2座车站完成围护结构，1座车站完成主体结构，1个高架区间完成主 体结构。 扬子晚报网1月9日讯(记者姜婧仪)近日，记者从南京地铁获悉，截至12月底，在建的7条地铁线路都有较大进展。 4号线二期续建。截至2025年12月，4号线二期4座车站和中间风井均已开工，3座车站和中间风井已完成主体结构。9条盾构隧道始发，其中8条盾构隧道贯 通。 续建6号线，已通过项目验收，正进行不载客试运行。 6号线栖霞山站 校对陶善工 ...

Core Insights - The construction progress of multiple subway lines in Qingdao has been reported, indicating significant advancements in the city's infrastructure development [1][2][3] Group 1: Subway Line 7 - The left line shield tunneling of the subway Line 7 Phase II between Blue Ao Road Station and Heshan Road Station has been successfully completed [1] - The total length of Line 7 Phase II is approximately 16.9 kilometers, with 14 stations planned, divided into northern and southern sections [1] Group 2: Subway Line 9 - The first auxiliary structure, the No. 2 wind pavilion retaining pile, at Huicheng Road Station of Line 9 has been successfully completed, laying a solid foundation for subsequent construction [2] - The total length of Line 9 is 16.36 kilometers, with 13 stations, starting from Haixi Village Station to Qianjin Community Station [2] Group 3: Subway Line 15 - The first segment of the top slab at Jingcheng Road Station of Line 15 has been completed, facilitating the subsequent shield tunneling between Jingcheng Road Station and Chunyang Road Station [3] - Line 15 is a key project in Qingdao's third-phase subway planning, with a total length of approximately 30.8 kilometers and 17 stations planned [3]