Core Insights - The successful installation of the first steel beam for the Weishui-Suqian High-Speed Railway marks a significant milestone in the construction of China's "Eight Vertical and Eight Horizontal" high-speed railway network [1][2] - The project aims to enhance transportation efficiency between Shandong and Jiangsu provinces, facilitating industrial collaboration and resource sharing in the region [2] Group 1: Project Overview - The Weishui-Suqian High-Speed Railway connects Weifang in Shandong with Suqian in Jiangsu, serving as a crucial transportation artery linking the Shandong Peninsula and the Yangtze River Delta [1] - The Linyi section of the project spans 38.566 kilometers and involves the installation of 16 steel beams, with the first two beams weighing 254.08 tons each [1] Group 2: Construction Challenges and Solutions - The installation of the steel beams over operational high-speed rail lines presented significant risks and required precise coordination [1] - The project team developed a specialized construction plan, conducted thorough checks on core equipment, and ensured personnel were adequately trained [2] - A comprehensive safety and technical defense system was implemented, utilizing drone surveillance and a monitoring system to track the installation process in real-time [2] Group 3: Strategic Importance - Upon completion, the Weishui-Suqian High-Speed Railway is expected to significantly improve regional transportation efficiency and contribute to high-quality economic development along the route [2] - The project plays a vital role in enhancing the national high-speed railway network and promoting regional coordinated development [2]

记者了解到，此次施工的转体梁工程位于山东省潍坊市境内，梁体全长161.7米，转体总重约1.2万吨， 转体前采用悬臂浇筑法施工工艺，顺时针水平转体至设计桥位。为确保转体的精准性和安全性，项目部 提前制定了详细科学的专项施工方案，引入先进的高精度激光定位系统，对转体过程中的设备状态进行 24小时实时监测。同时，项目采用BIM三维推演技术对施工方案进行论证，针对球铰的水平度、球面轮 廓度及轴心位置进行精细化调节与安装，借助电子水准仪实时动态校准，将各项误差控制在规定范围 内。 潍宿高铁连接山东省潍坊市和江苏省宿迁市，项目建成后，将进一步完善山东、江苏北部区域路网布 局，极大便利沂蒙山、苏北革命老区人民群众出行，对助力区域经济社会发展、黄河流域生态保护和高 质量发展，具有十分重要的意义。 来源：中国青年报客户端 中国青年报客户端讯（中青报·中青网记者 张真齐）12月19日，由雄安高速铁路有限公司建设、中铁四 局承建的潍（坊）宿（迁）高铁——潍坊特大桥跨济青高铁连续梁成功转体。这是潍宿高铁首个跨高速 铁路转体梁，也是山东省在建高铁项目最重的转体梁工程，打通了架梁通道上关键断点。 ...

Core Points - The successful completion of the first over 100-meter rotating bridge on the Linyi section of the Weishui High-speed Railway marks a significant milestone in the project, allowing for subsequent beam installation and ballastless track construction [1][3] Group 1: Project Overview - The Weishui High-speed Railway is a critical segment of the Beijing-Shanghai High-speed Railway auxiliary corridor, with a total length of 398.296 kilometers and a design speed of 350 kilometers per hour [3] - The section constructed by China Railway 12th Bureau spans 34.034 kilometers and includes 14 continuous beam constructions, with the rotating bridge being a key challenging control project [3] Group 2: Construction Methodology - To minimize the impact of bridge construction on the existing Daylan Expressway, the project team employed a "build first, rotate later" method, where continuous beams were cast on both sides of the expressway before being rotated into position [4] - The rotation process is likened to a ballet dancer, with the bridge body rotating around a central point to achieve precise alignment [4] Group 3: Regional Significance - The Weishui High-speed Railway is an important part of the regional transportation network, connecting with other high-speed rail lines and significantly enhancing travel convenience for residents in the Yimeng Mountain and Su Bei revolutionary areas [6] - The completion of the railway is expected to greatly facilitate regional economic and social development, as well as ecological protection and high-quality development in the Yellow River basin [6]

Core Insights - The construction activities along the Yangtze River and Jianghuai Plain are experiencing a significant surge, with a focus on enhancing transportation infrastructure and logistics efficiency [1][2][4] Investment and Progress - In the first three quarters, the province completed transportation fixed asset investment of 185.8 billion yuan, accounting for 80.8% of the annual investment plan, exceeding the scheduled progress [1] - The province aims to complete a total transportation investment of 230 billion yuan for the year, ensuring high-quality completion of various work targets [1] Railway Construction - The North Jiangsu High-Speed Railway is progressing rapidly, with the completion of 98% of box girder erection and plans to finish beam erection by the end of November [2] - The total investment in railway projects reached 40.069 billion yuan in the first three quarters, with a strong push to meet annual construction targets in the fourth quarter [3] Bridge and Tunnel Developments - The Zhang Jinggao Yangtze River Bridge construction is advancing, with key engineering components like pile foundations and segment beams being completed [4] - The Jiangyin-Jingjiang Yangtze River Tunnel is also progressing, with 80.27% of the annual plan completed, expected to be operational by 2028, significantly reducing crossing time [5] Highway Expansion - The expansion of the Hu-Wu Expressway is underway, with 90.9% of the annual plan completed, aiming for basic completion by the end of the year [6] - The Jiangsu section of the Weishan-Suzhou High-Speed Railway has initiated box girder prefabrication and erection, transitioning to upper structure construction [3][7]

Group 1 - The completion of the main pier body for the T-shaped turning beam of the Weishui High-speed Railway marks a critical phase in the upper structure construction, laying the foundation for subsequent turning operations [1] - The main pier of the turning bridge adopts a unique square pier design within the project segment, utilizing advanced double-line rigid wall pier technology to optimize structural shape and material distribution, ensuring sufficient strength and stability while saving materials and reducing land occupation [4] - The construction area of the Weishui High-speed Railway is the only segment adjacent to an operational line, with a minimum construction distance of only 14.2 meters, posing significant safety risks and complex construction organization [7] Group 2 - The project team implemented a three-tier quality control system during construction, ensuring "zero error" management of indicators such as rebar spacing and protective layer thickness, thereby controlling engineering quality from the source [7] - The Weishui High-speed Railway, approximately 340 kilometers long with a design speed of 350 kilometers per hour, will serve as a key rapid passenger transport corridor connecting the Beijing-Tianjin-Hebei region with the Yangtze River Delta, enhancing personnel exchanges and economic ties between the two regions [8]

Core Insights - The successful installation of the first box girder marks the transition of the Weishui High-speed Railway project from offline construction to a synchronized online and offline construction phase [1][3] Group 1: Project Progress - The project has completed an investment of 2.724 billion yuan, with 4,194.59 acres of land delivered, accounting for 96.5% of the total land required [3] - A total of 320 relocations have been completed, and all temporary land use procedures have been approved, with the construction of temporary facilities such as beam yards and mixing stations fully completed [3] - The successful installation of the first box girder serves as a demonstration for subsequent bridge construction [3] Group 2: Government Support - The transportation department and related agencies in Weifang have proactively addressed challenges such as land approval, land acquisition, and utility relocations to ensure smooth project progress [5] - The Weishui High-speed Railway is a key segment of the national "Eight Vertical and Eight Horizontal" auxiliary channel of the Beijing-Shanghai High-speed Railway and is part of the national "14th Five-Year" railway safety development plan [5] Group 3: Strategic Importance - Upon completion, the project will enhance the regional high-speed railway network, alleviate congestion on the Beijing-Shanghai High-speed Railway, and improve transportation infrastructure along the route [5] - The project is expected to promote the integration of the Beijing-Tianjin-Hebei region, the Shandong Peninsula urban agglomeration, and the Yangtze River Delta region [5]