12月23日，随着1600吨履带吊将北西上行联络线特大桥第一榀钢横梁精准落位，由中铁十局承建的国 家"八纵八横"高速铁路网重要组成部分、潍宿高铁山东临沂段站前8标首批上跨日兰高铁钢横梁吊装首 战告捷。此次作业完成2榀最大起吊重量达254.08吨的钢横梁吊装，实现钢横梁与预埋件精准对接，不 仅攻克了跨运营高铁施工的关键难点，更为全线推进奠定坚实基础。 吊装实施阶段，项目部严格落实"人防+物防+技防"三位一体防护体系，推行"一人一岗、一机一控"清单 化管理，确保各岗位责任闭环落地。同时，依托"无人机航拍+时空一体监测系统"构建立体监控网络， 实时追踪吊装姿态，精准调控作业节奏，最终顺利实现2榀钢横梁平稳落位、毫米级对接，圆满完成首 批吊装任务，为后续12孔跨高铁钢横梁吊装积累了可复制、可推广的实战经验。 据了解，潍宿高铁建成通车后，将大幅提升区域交通通达效率，加速山东半岛与长三角地区的产业协 同、资源互补和人员往来，为沿线经济社会高质量发展注入强劲动力，对完善国家高速铁路网布局、推 动区域协调发展具有重要战略意义。 潍宿高铁连接山东潍坊与江苏宿迁，是贯通鲁苏两省、衔接山东半岛与长三角地区的重要交通大动脉。 其中临 ...

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。 ...

12月10日，中铁十二局承建的潍宿高铁临沂段首个百米以上转体桥历时57分钟、在空中逆时针旋转38°56′后成功跨越日兰高速公路并实现精准 对接，为后续架梁及无砟轨道施工打通"咽喉要道"。 潍宿高铁是京沪高铁辅助通道的重要组成部分，与在建的天津至潍坊高铁，已开通运营的济南至青岛高铁、徐州至盐城高铁、日照至兰考高铁 相连接，区域路网地位十分重要。建成通车后，将极大便利沂蒙山、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。 (新黄河) 为最大限度减少桥梁施工对既有日兰高速公路的影响，项目建设团队采用"先建后转、墩底转体"的施工方法，即先在日兰高速公路两侧空地分 别浇筑连续梁，待桥梁上部结构完成后通过球铰转动体系使梁体转动就位、姿态调整后达到预定轨迹的施工方案;转体过程中，桥体如同芭蕾 舞演员般双臂展开、单脚尖触地直立，以脚尖为中心完成身体直臂旋转，最后两幅T构严丝合缝地对接，实现精准转体。 潍宿高铁是京沪高铁（601816）辅助通道的关键段落，全长398.296公里，设计时速350公里。中铁十二局承建管段全长34.034公里，包含14处 连续梁施工，此次转体的跨 ...

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]