"沱江两岸基岩以泥岩和砂岩为主，地基无法承受巨大水平推力，通过创新设计飞燕式双排支座无推力拱桥结构体系，让大桥如同'巨弓'横跨 沱江。"设计方中铁二院工程师彭福兵介绍。 据了解，主拱提升合龙难点在于把重2200吨、长174米的主拱提升21.7米，提升过程中拱肋4个吊点的高差不能超过20毫米，堪比"空中绣 花"。施工团体应用虚拟拼装技术，反复模拟演练，精准提升速度与姿态，确保8名电焊工在距江面103米高空同时施焊，合龙精准度与模拟高度一 致。主梁张拉合龙难点在于采用5000吨级水平张拉措施强迫合龙，精度要求极高。施工团队研发了施工监测信息化系统，动态调整施工参数，把 误差控制在毫米级。 成渝中线高铁项目正线全长292公里，设计时速350公里，是我国"八纵八横"高铁网沿江通道的重要组成部分，项目通车后将强化长江经济带 与成渝城市群联动。（记者薛晨） 【纠错】 【责任编辑:邱丽芳】 11月10日，成渝中线高铁控制性工程沱江特大桥主梁在四川省简阳市顺利合龙。 沱江特大桥位于四川省简阳市石钟镇，全长1252米。建设团队突破主拱提升合龙、主梁张拉合龙等难点，形成多项创新成果。 11月10日拍摄的合龙后的成渝中线高铁沱江特 ...

7月11日，深圳地铁建设集团有限公司因未按照批准的期限占用、挖掘城市道路，被深圳市交通运输局罚款1万元。 近日，记者从信用中国获悉，深圳地铁建设集团有限公司因未按照批准的期限占用道路，被深圳市交通运输局罚款2万元。 违法事实为：2025年06月02日16时08分，执法人员刘畅、胡巧宁在广东省深圳市罗湖区地王大厦公交站台路段对深圳地铁建设集团有限公司实施的深圳市城 市轨道交通地铁5号线（黄贝岭站后至大剧院段）大剧院站施工工程进行勘验检查，经检查发现，该工程占用挖掘深南东路长134米、宽55.2米。该工程建设 单位为深圳地铁建设集团有限公司，施工单位为中铁十四局集团有限公司，施工现场张贴有深圳市占用挖掘道路许可证，许可证号为深交许（罗湖） 【2024】167号，许可时间是2024年7月1日至2025年5月30日，执法检查时，该许可已过期。2024年7月4日，深圳地铁建设集团有限公司委托梅志远到大队配 合调查，其表示其公司已于2025年6月12日取得深圳市占用挖掘道路许可决定书，深交许（罗湖）[2025]124号，许可时间为2025年6月12日至2025年11月17 日。经核，该项目已于2025年6月12日重新取得 ...

齐鲁晚报·齐鲁壹点 李牧青 通讯员 于莉 王延宗 谭政 近日，由中铁十局承建的新建潍宿高铁至青岛连接线"四电"系统集成1标项目首座房屋——还建青盐铁路通信基站站房顺利通过竣工验 收，成功打通了制约后续架梁施工的关键通道，为加快推进工程建设奠定了坚实基础。 新建潍宿高铁至青岛连接线是我国"八纵八横"高铁网骨架的重要组成部分及与沿海通道的重要连接线。项目位于山东半岛南部，线路自 青盐铁路洋河口站引出，自东向西途经青岛市西海岸新区、潍坊市诸城市、日照市五莲县，引入潍宿高铁新建五莲北站，项目全长108． 78公里，设计时速350公里，全线设洋河口、青岛西、诸城南、五莲北4座车站。 该工程由山东铁投集团投资建设，中铁十局电务公司承建了新建潍坊至宿迁高速铁路至青岛连接线"四电"系统集成及相关工程 QDLSDSG-1标段，主要涉及洋河口至青岛西站范围内房建、信号、通信、电力、接触网等多专业工程施工，包含改建2座既有车站、新 建1座中继站以及所属区间内四电及房建工程。其中，房建工程沿线路分布共有生产、配套用房共31处，合计建筑面积达17531平方米。 项目建成后，将形成青岛北上南下的快速通道，进一步完善我国的高速铁路网络，使 ...

Group 1 - The core point of the news is that Croatia's largest infrastructure project, the modernization of the Dugo Selo–Novska railway, has officially entered the bidding phase with four international companies participating [1][3] - The project spans approximately 83 kilometers with a total estimated cost of around 620 million euros, partially funded by EU funds [3] - The project includes comprehensive renovation of existing railways, double-tracking, station and stop upgrades, modernization of power, signaling, and control systems, and is expected to improve train speeds to 160 km/h upon completion [3] Group 2 - The lowest bid submitted by Afcons Infrastructure Limited from India is 677 million euros, while other bids include a consortium led by Ashoka Buildcon Limited at 780 million euros, and Turkish companies Doğuş İnşaat at 989 million euros and Cengiz Insaat at 873 million euros [3] - The evaluation of all bids will be completed within the legal timeframe, and a contract will be signed with the selected "most economically advantageous" bidder [4]

Core Viewpoint - The completion of the main structure of the Xiaowangbu Station marks significant progress in the construction of the Qingdao Metro Line 2 Phase II, showcasing innovative construction techniques and addressing various challenges in the project [1][3]. Group 1: Project Overview - Xiaowangbu Station is the first station of the Qingdao Metro Line 2 Phase II, featuring a two-level underground structure with a total length of 282.8 meters and a maximum width of 53.6 meters, approximately double that of a standard station [1]. - The station is strategically located at the intersection of major traffic routes in Qingdao, facing challenges such as poor geological conditions, dense pipelines, and heavy traffic [1]. Group 2: Construction Innovations - The construction team employed a combination of "open-cut and half-width cover excavation" methods to ensure road traffic and construction could proceed simultaneously [3]. - A "three-stage pouring method" was developed to tackle the challenges of ultra-high concrete side wall construction, achieving "zero misalignment and zero leakage" in a limited operational space of 0.92 meters [3]. - The introduction of a semi-automatic mobile large-scale ultra-high steel formwork trolley increased the formwork turnover rate to 12 times, saving 0.15 cubic meters of concrete per meter and reducing carbon emissions by 18% [3]. Group 3: Construction Efficiency - During peak construction periods, 320 workers operated around the clock, achieving a maximum daily excavation volume of 3,300 cubic meters [3]. - The installation of 79 steel pipe columns, each weighing 12 tons, was optimized through techniques such as hole drilling and numerical control positioning, resulting in an installation precision error of less than 3 millimeters [3].

Core Viewpoint - The construction of the Xiongshan High-Speed Railway, particularly the Yellow River Grand Bridge, is a critical component of China's high-speed rail network, showcasing innovative construction techniques and addressing complex geological challenges [1][4]. Group 1: Project Overview - The Xiongshan High-Speed Railway spans approximately 552 kilometers, connecting Xiong'an Station to Shangqiu Station, with a design speed of 350 km/h [1]. - The Yellow River Grand Bridge is the only control project along the Xiongshan High-Speed Railway, measuring 40.82 kilometers in total length, with the main bridge being 1,600 meters long and utilizing 43,000 tons of steel [4]. Group 2: Construction Techniques - The project employs a "mobile formwork" system, referred to as the "aerial beam factory," which has reduced the construction cycle for each beam from 21 days to 15 days through innovative methods [4][5]. - Advanced technologies such as three-dimensional modeling and intelligent monitoring systems have been integrated to ensure high precision in construction, with errors controlled within millimeters [4][5]. Group 3: Geological Challenges - The construction faced significant challenges due to the complex hydrological conditions of the Yellow River, including high water levels and strong erosion [5]. - Specialized techniques, such as environmentally friendly mud circulation methods, were implemented to address these challenges during the construction of underwater piers [5][6]. Group 4: Project Management and Future Steps - The project team has emphasized continuous project management and personnel support to ensure the successful completion of the construction tasks [6]. - The experience gained from overcoming construction difficulties is expected to enhance the skills and capabilities of the team for future projects [6].

Group 1: AI Industry in Chengdu - Chengdu's AI industry has achieved a "double breakthrough," with the "Raydiculous-1 system" recognized as one of the top five global advancements in April 2025 [1] - Five Chengdu companies made it to the "Top 100 AI Enterprises" list, ranking fifth nationally [1] - The core AI and robotics industry in Chengdu is projected to exceed 100 billion yuan in scale by 2024, with a year-on-year growth of approximately 39% [1] Group 2: Microwave RF Industry Development - The Microwave RF Industrial Park (West District) project has commenced construction with a total investment of over 470 million yuan [2] - The park will enhance the regional industrial chain and support Chengdu's position in microwave RF technology innovation [2] - By 2024, Chengdu High-tech Zone is expected to host nearly 2,000 microwave RF companies, with a revenue of approximately 16 billion yuan, reflecting a year-on-year growth of 10.34% [2] Group 3: High-Speed Rail Developments - The Yukun High-Speed Railway's control project, the Ma'anshan Tunnel, has successfully passed through, with over 85% of the tunnels completed [3] - The Yukun High-Speed Railway will significantly reduce travel time between Chongqing and Kunming to around 3 hours [3] - The Chengdu section of the Chengdu-Yu High-Speed Railway has achieved over 80% completion in roadbed engineering [5] Group 4: Infrastructure Projects - The Chengdu to Emei Mountain Expressway has received preliminary design approval, with a total investment of approximately 17.6 billion yuan [10] - The project will span 81.5 kilometers and is expected to take three years to complete [10] - The Chengdu-Chongqing economic zone has seen a significant increase in key projects, with 320 projects completing an investment of 111.98 billion yuan in the first quarter [16] Group 5: Cultural and Economic Events - Chengdu will host 21 key exhibition activities in May, including the Fourth Western Cross-Border E-Commerce Expo [14] - The events will cover various sectors such as new consumption, modern transportation, and digital economy [14] - Chengdu's shadow puppet cultural exhibition in Phoenix, USA, aims to promote traditional Chinese culture [15] Group 6: Sports Achievements - Chengdu Rongcheng has achieved four consecutive victories in the Chinese Super League, currently leading the league standings [17] - The team's performance includes a notable win against Shanghai Shenhua, marking their first time at the top of the league [17]