齐鲁晚报·齐鲁壹点记者 赵波 "毫米级"跨越 攻坚克难保运营 东营南站自开工以来，项目建设者在423个昼夜的拼搏奋战中，掀起四次大规模劳动竞赛热潮。2025年1 月20日，完成钢结构首吊；2025年5月25日，德大线正式恢复运行；2025年10月17日，完成钢屋盖滑移 分块首吊；2025年11月8日，完成第一榀钢屋架拼装滑移......一个又一个关键性节点的如期完成，展现 了"铁路站房建设王牌军"的风采。 本次实施的最终滑移单元，包含3榀钢桁架及附着的金属屋面系统，总重达1400吨，跨度达195米。由于 滑移单元重量大、跨度长，且需上跨下方正常运营、密布27.5千伏高压接触网的德大铁路，项目创新采 用"地面拼装、整体累积滑移"工艺，其核心在于将复杂的高空、高风险作业转化为安全的地面作业。 项目先在地面完成各滑移单元的拼接与屋面、幕墙的附属安装，再利用由轨道梁、滑移车及液压爬行器 组成的滑移系统进行整体顶推。施工中，由计算机同步控制系统精确指挥，实时监测并协调各顶推点的 动作与荷载，确保受力点"步调一致"，实现精准滑移。整个地面拼装与滑移过程，共投入钢结构作业人 员120余人，经过周密的地面拼装与系统调试，历时 ...

转自：四川在线 靖博 四川在线记者 袁城霖 西渝高铁建成后将与成渝、郑渝、渝昆等高铁线路互联，西安至重庆的出行时间将大幅缩减，将推动中西部地区铁路路网结构进一步完善，极大便利沿线人 民群众出行，对推进乡村全面振兴、助力城乡融合和区域协调发展、推动西部大开发形成新格局，具有十分重要的意义。 万家山隧道斜井二衬。 （中铁六局西渝高铁康渝段站前四标项目部供图） 中铁六局西渝高铁康渝段站前四标项目部现场负责人说，建设团队按照"短进尺、弱爆破、强支护、勤量测"原则施工，引入拱架安装激光校准仪，大规模应 用衬砌智能浇筑振捣系统、智能养护台车等工装，利用先进技术手段精准预测瓦斯风险及浅埋区段落，采用台阶法开挖，为隧道安全施工、按时贯通奠定坚 实基础。 隧道进口。 随着万家山隧道顺利贯通，西渝高铁康渝段已贯通43座隧道，路基、桥梁、隧道等站前主体工程建设正有序推进。 记者2026年1月1日从京昆高速铁路西昆有限公司获悉，当天上午，位于达州市宣汉县境内的万家山隧道顺利贯通。这是西渝高铁康渝段贯通的首座超6公里 隧道，标志着西渝高铁建设取得新进展。 隧道贯通现场。 万家山隧道全长6465米，为单洞双线隧道，由中铁二院勘察设计、中 ...

转自：四川在线 四川在线记者 寇敏芳 12月28日，新建成都至达州至万州高速铁路（以下简称：成达万高铁）重点工程——光明隧道顺利贯通。目前，全线隧道工程设计136座，贯通132座，完成 占比近97%，全线已进入无砟道床、站房工程和四电工程施工阶段。 隧道贯通现场 中铁北京局成达万高铁指挥部指挥长陈双秦介绍，为应对煤层中蕴含的瓦斯和硫化氢等有害气体，项目管理团队采用安全等级更高的煤矿专用炸药和数码雷 管进行爆破，同时在隧道内增强通风、监测等手段，多维度、全方位保障隧道施工安全。此外，施工中还采用了多种智能化工装设备，提升施工效率，显著 降低劳动强度，确保了项目施工安全质量目标全面达优。 成达万高铁 成达万高铁光明隧道位于四川省开江县和重庆市开州区境内，恰好处于连通川渝的关键节点，全长超过8公里，设计时速350公里，为单洞双线低瓦斯隧道。 全隧岩体破碎，围岩稳定性差。同时，隧道存在突泥涌水、瓦斯及有害气体超限等高危因素，作业环境复杂，施工难度大，安全风险高。 隧道贯通 "隧道建设，我们用了3年多时间。"成达万高铁公司达州建设指挥部指挥长张宗伟介绍，600余名建设者分成四个工作面同步施工，成功攻克隧道突泥涌水、 瓦 ...

12月25日，由中铁十六局参与建设的北京通州站正在完成最后的施工，该站将于2025年12月30日投入运 营。届时，京唐城际铁路将全线开通，北京将成为国内首个拥有八个一类铁路客运站和两个大型国际机 场的城市。本报记者 白至洁 摄 （来源：工人日报） ...

Core Insights - The construction of the Weishui High-speed Railway to Qingdao connection line has made significant progress with the successful completion of the Iron Jue Mountain Tunnel, which is the first tunnel over 1,000 meters in length on this line [1][3] Group 1: Project Details - The Iron Jue Mountain Tunnel measures 1,292.6 meters in length and is a single-tube double-track tunnel, facing complex surrounding rock conditions, with a V-grade surrounding rock section of 187.6 meters [3] - The construction utilized a dynamic optimization blasting scheme and incorporated advanced technologies such as a fully automated digital 3D laser scanning system and an intelligent information platform for real-time monitoring and safety [3] - The tunnel was completed 80 days ahead of the scheduled timeline, showcasing effective risk management and accelerated construction progress [3] Group 2: Strategic Importance - The Weishui High-speed Railway to Qingdao connection line spans 108.78 kilometers and serves as an auxiliary channel to the Beijing-Shanghai High-speed Railway, part of the national "Eight Vertical and Eight Horizontal" high-speed rail network [3] - Once completed, the line will significantly enhance passenger travel and economic exchanges between the Jiaodong Peninsula, Beijing-Tianjin-Hebei region, and the Yangtze River Delta, contributing to regional connectivity and economic development [3]

Core Insights - The successful completion of the steel beam installation for the Qingdao West Fenghe Bridge marks a significant milestone in the Weishui High-speed Railway to Qingdao connection line project, laying a solid foundation for subsequent bridge and track construction [1][4] Group 1: Project Details - The steel beams installed have a span of 23 meters and weigh 118 tons, with the installation completed within a 120-minute window, showcasing the project's complexity [3] - The project team utilized a "steel bone connection" technique to ensure the steel beams were securely fixed to the concrete bridge piers, involving precise welding and high-performance concrete pouring [3] - The Weishui High-speed Railway to Qingdao connection line spans 108.78 kilometers and is part of the national "Eight Vertical and Eight Horizontal" high-speed rail network, enhancing connectivity between the Jiaodong Peninsula and major regions [5] Group 2: Challenges and Solutions - The project faced challenges such as narrow installation space, high precision requirements, and safety risks associated with operating on live rail lines [5] - A comprehensive safety protection system was established, incorporating human, material, and technical defenses, along with smart monitoring systems for real-time risk assessment [5] - The use of digital tools like BIM technology and smart construction platforms significantly improved construction efficiency and safety during the steel beam installation [5]

Core Viewpoint - The successful breakthrough of the "Ningwu" earth pressure balance shield machine marks significant progress in the Nanjing South Tunnel of the Ningwu Railway capacity expansion project, which aims to enhance safety and reduce urban disruption caused by the railway [1][3]. Group 1: Project Overview - The Ningwu Railway capacity expansion project includes a realignment of the Nanjing urban section, which will eliminate safety risks associated with level crossings and address urban issues such as noise, pollution, and traffic congestion [3]. - The Nanjing South Tunnel, a key component of the project, is 14.442 kilometers long with a design speed of 120 km/h, traversing through multiple districts in Nanjing [3][9]. - The shield section of the tunnel spans approximately 2.4 kilometers and involves complex geological conditions, including various soil types and proximity to existing infrastructure [3][5]. Group 2: Construction Challenges and Solutions - The construction faced high safety risks due to dense surface structures and limited working space, leading to the adoption of shield tunneling as the primary method [5]. - The project team developed a customized "Ningwu" shield machine, which is 132 meters long and weighs 1375 tons, featuring advanced technologies for safety and efficiency [5][7]. - Techniques such as "micro-disturbance excavation" and "precise guidance" were employed to ensure safe tunneling through critical risk areas, including the crossing of major rivers [7]. Group 3: Future Implications - Upon completion, the Ningwu Railway expansion will enhance the freight capacity of the eastern section of the Yangtze River Economic Belt and improve regional railway network layout [9]. - The project aligns with the principles of "ecological priority and green development," facilitating industrial upgrades and optimizing urban spatial layouts along the railway [9].

Core Points - The main beam of the Tuojiang Grand Bridge, a key project of the Chengyu Middle Line High-Speed Railway, successfully completed its closure on November 10 in Jianyang, Sichuan [1][3] - The bridge spans 1252 meters and features innovative design solutions to address construction challenges, including a no-thrust arch bridge structure [3] Group 1: Construction Challenges and Innovations - The main arch, weighing 2200 tons and measuring 174 meters, was lifted 21.7 meters with a height difference of no more than 20 millimeters at four lifting points, likened to "airborne embroidery" [3] - A virtual assembly technology was utilized for repeated simulations to ensure precise lifting speed and posture, allowing eight welders to work simultaneously at a height of 103 meters above the river [3] - The main beam closure required a 5000-ton horizontal tensioning method, with high precision demands, supported by a construction monitoring information system to dynamically adjust parameters and control errors to the millimeter level [3] Group 2: Project Overview and Significance - The Chengyu Middle Line High-Speed Railway has a total length of 292 kilometers and is designed for a speed of 350 kilometers per hour [3] - This project is a crucial part of China's "Eight Vertical and Eight Horizontal" high-speed rail network, enhancing connectivity between the Yangtze River Economic Belt and the Chengdu-Chongqing urban agglomeration [3]

Group 1 - Shenzhen Metro Construction Group Co., Ltd. was fined 20,000 yuan for occupying roads beyond the approved period [1] - The company was found to have occupied a section of the road measuring 134 meters in length and 55.2 meters in width during the construction of the Shenzhen Metro Line 5 [1] - This incident marks the third time the company has been penalized within a year for similar violations [1] Group 2 - On August 21, 2025, Shenzhen Metro Construction Group Co., Ltd. was fined 50,000 yuan for unauthorized road occupation and excavation [3] - The violation occurred on April 1, 2025, when the company was found occupying a pedestrian road without the necessary approvals [3] - The company was also fined 10,000 yuan on July 11, 2025, for similar infractions regarding road occupation [4] Group 3 - Shenzhen Metro Construction Group Co., Ltd. was established on February 1, 2019, and is a wholly-owned subsidiary of Shenzhen Metro Group Co., Ltd. [5] - The company has a registered capital of 900 million yuan and is involved in various infrastructure projects including rail transit and municipal facilities [5]

Core Viewpoint - The successful completion of the communication base station for the new Weifang-Suqian high-speed railway to Qingdao connection line marks a significant milestone in advancing the project, facilitating subsequent construction phases [1][3]. Project Overview - The new Weifang-Suqian high-speed railway to Qingdao connection line is a crucial part of China's "eight vertical and eight horizontal" high-speed rail network, enhancing connectivity with coastal corridors [3]. - The project spans 108.78 kilometers with a design speed of 350 kilometers per hour, featuring four stations: Yanghekou, Qingdao West, Zhucheng South, and Wulian North [3]. Construction Details - The project is funded by Shandong Railway Investment Group and constructed by China Railway 10th Bureau, focusing on the integration of the "four electrical" systems, including signal, communication, and power engineering [5]. - The construction includes the renovation of two existing stations and the establishment of one new relay station, with a total building area of 17,531 square meters across 31 facilities [5]. Economic Impact - Upon completion, the project will create a rapid transit corridor for Qingdao, enhancing the city's status as a railway transportation hub and contributing to the high-quality economic development of Shandong province [5].