从长江天堑的"钢铁飞虹"，到纵横交错的"高速网络"，再到通达八方的"轨道长龙"，连日来，长江 之畔、江淮平原掀起一轮又一轮建设热潮。 省交通运输厅数据显示，前三季度，全省完成交通固定资产投资1858亿元，占年度投资计划的 80.8%，超过序时进度。下一阶段，我省全力加快重大项目建设，推动交通物流降本提质增效，确保全 年完成交通投资2300亿元，高质量完成各项工作目标。 轨道"织网"，跑出发展新速度 11月8日，万里长江入海口，北沿江高铁崇启公铁长江大桥的两座H型主塔屹立江心，不同机器作 业声相互交织，一派繁忙景象。 "抓住建设黄金期，我们既要抢进度，更要保安全、提质量。"中铁大桥局北沿江高铁站前5标二分 部北岸工区经理王明智告诉记者，北引桥高铁侧现浇梁已浇筑完成，城际侧现浇梁完成设计总量的 86%，非通航孔桥将于本月实现钢梁合龙，为后续桥梁整体贯通奠定基础。 视线转向北沿江高铁其他标段，中铁十二局北沿江高铁站前10标总工程师郑津浦说，目前标段内箱 梁架设已完成98%，预计11月底完成架梁。与此同时，泰州南站剩余现浇梁与无砟道床施工正全力推 进，为2026年春节前架设盐泰锡常宜铁路正线箱梁做足准备。 通苏嘉甬高 ...

Core Insights - The transportation fixed asset investment in China reached 2.6 trillion yuan in the first three quarters of the year, maintaining a high level of investment [4] - Major transportation projects are entering critical construction phases, including the completion of the main towers of the Zhangjinggao Yangtze River Bridge and the initiation of the main structure construction of the Xiamen Jinmen Bridge [1][2] Investment Overview - The transportation fixed asset investment breakdown includes: - Railways: 593.7 billion yuan - Highways: 1.78 trillion yuan (with expressways at 929.6 billion yuan, national and provincial roads at 434.3 billion yuan, and rural roads at 275.3 billion yuan) - Waterways: 160.5 billion yuan - Civil aviation: 82.9 billion yuan [4] Project Progress - The Zhangjinggao Yangtze River Bridge, which connects multiple cities and is expected to be completed by October 2028, has all four main towers completed [1] - The Xiamen Jinmen Bridge, a key project for connecting Fujian coastal areas with Kinmen Island, has achieved 37% overall progress since construction began in January 2024, aiming for sea mainline traffic by the end of 2026 and full completion by 2027 [2] - The Pinglu Canal project, a significant infrastructure initiative, has completed 84.8% of its total investment, with substantial progress in earthworks and concrete pouring for the lock structures [3][4]

Core Points - The completion of the northern anchor pier construction for the Zhang Jinggao Yangtze River Bridge marks a significant milestone, being the first anchor body completed along the entire line, laying the foundation for the subsequent main cable installation [1] - The bridge features a main span of 1208 meters and the northern anchor serves as the ultimate anchoring point for the main cable, which must bear the entire load and safely transmit forces to the deep foundation [1] - The completed saddle support pier is a critical component of the northern anchor system, designed to support the heavy saddle that will distribute the main cable's load [1] Construction Techniques and Quality Control - The project team implemented precise strategies to address technical challenges and quality control requirements, including high-precision measurement and strict control of template positioning and embedded component installation [3] - An intelligent temperature control system for large-volume concrete was utilized to ensure the quality of the concrete during construction, maintaining safety and control throughout the process [3]

Core Viewpoint - The Zhang Jinggao Yangtze River Bridge, currently under construction, is set to be the world's largest span bridge, significantly enhancing transportation efficiency and promoting regional integration in the Yangtze River Delta area. The associated 220 kV power line relocation project is crucial for the bridge's completion by 2028 [1][2]. Group 1: Project Overview - The Zhang Jinggao Yangtze River Bridge connects Zhangjiagang, Taizhou Jingjiang, and Nantong Rugao, marking a milestone in China's bridge engineering by surpassing a 2000-meter span [1]. - The power line relocation involves the construction of 36 new towers and the dismantling of 32 old towers to facilitate the elevated road construction [1]. Group 2: Operational Details - A large-scale power outage is scheduled from September 29 to November 5 to ensure safety during the relocation work, affecting multiple 220 kV lines [2]. - The State Grid Zhangjiagang Power Supply Company has coordinated with key enterprises to minimize the impact of the power outage, ensuring continuous power supply during critical operations [2]. Group 3: Construction Progress - During the holiday period, construction workers are working overtime to expedite the project, with significant progress made on the installation of the B6 tower, completed ahead of schedule [3]. - Workers are engaged in physically demanding tasks, often working over eight hours a day at heights, demonstrating commitment to meeting project deadlines [3].

Core Points - The Zhang Jinggao Yangtze River Bridge construction has made significant progress with the completion of the south main tower's crossbeam hoisting [1][3] - The bridge features the world's largest main span of 2300 meters, connecting the cities of Suzhou, Taizhou, and Nantong in Jiangsu Province [3][7] Construction Details - The north and south main towers of the bridge utilize a door-type steel box structure, standing at a height of 208 meters (excluding the tower crown) [3] - The upper crossbeam consists of five precision segments, weighing approximately 640 tons, with strict control of joint gaps within 10 millimeters [3][5] - The hoisting segment of the south main tower measures 8 meters in width, 8 meters in length, and 9.1 meters in height, weighing 115 tons, and was lifted to a height of 100 meters with millimeter-level precision [5] Technological Integration - The project team employed advanced digital tools, utilizing BIM technology for full-process dynamic simulation of the hoisting operation, identifying and mitigating safety risks and quality issues [5] - A digital twin system was used to reconstruct the steel tower structure in a virtual environment, allowing for multi-dimensional simulation verification [5] Strategic Importance - Upon completion, the Zhang Jinggao Yangtze River Bridge will play a crucial role in promoting integrated development in the Yangtze River Delta, optimizing the river's crossing channels, and enhancing regional road network layout [7]

Core Insights - Jiangsu Province is accelerating the construction of water, land, and air infrastructure, showcasing significant "super projects" that reflect the speed of development in the region [1] Infrastructure Development - The Changtai Yangtze River Bridge, which began construction in 2019, is expected to be completed by 2025, significantly reducing travel time between Taizhou and Changzhou [1] - The Zhangjingao Yangtze River Bridge and the Haitai Yangtze River Tunnel, the latter being the world's longest underwater shield tunnel for road traffic, are also under construction [1] - Jiangsu has completed 20 cross-river passages, with multiple projects in progress, facilitating convenient travel for residents along the river and promoting the integration of cross-river urban clusters and the Yangtze River Delta [1] Economic Impact - These infrastructure projects are contributing to the high-quality economic development of the region [1]

Core Points - The Zhang Jinggao Yangtze River Bridge's south navigation tower successfully completed the installation of its 26th segment, reaching a new height of 300 meters [2] - The bridge connects Suzhou, Taizhou, and Nantong in Jiangsu Province, with a total span of 7,859 meters, including two navigation bridges and three approach bridges [2] Summary by Categories Construction Progress - The main tower of the Zhang Jinggao Yangtze River Bridge has achieved a significant milestone by completing the installation of the 26th segment [2] - The construction site was photographed on September 14, indicating ongoing progress in the project [2] Structural Details - The bridge features a total length of 7,859 meters, which includes both south and north navigation bridges as well as three segments of approach bridges [2] - The height of the main tower has now reached 300 meters, showcasing the engineering advancements in the project [2]

Core Viewpoint - The Zhang Jinggao Yangtze River Bridge is a significant infrastructure project aimed at enhancing connectivity in the Yangtze River Delta region, showcasing advanced engineering and innovative technologies [1][5]. Group 1: Project Overview - The bridge, approximately 29.85 kilometers long, is a key project during China's 14th Five-Year Plan, expected to be completed by the end of 2028 [1]. - The construction of the bridge began with a groundbreaking ceremony on June 28, 2022, and the main engineering work commenced in October of the same year [1]. Group 2: Engineering Innovations - The bridge features six world records, including the longest span for a suspension bridge at 2,300 meters and the highest suspension bridge tower [2]. - Innovative technologies include a self-balancing cable force system, ultra-high-strength main cables, and a digital bridge concept that integrates smart monitoring and maintenance systems [2][4]. Group 3: Environmental Impact - The application of the self-balancing cable force technology is projected to save 15,700 cubic meters of concrete and 12,560 tons of steel, reducing carbon emissions by over 80,000 tons [2]. Group 4: Operational Safety - The bridge will utilize sensors to collect real-time data on environmental conditions and structural responses, aiding in scientific decision-making for its operation and maintenance [3]. Group 5: Strategic Importance - The bridge is a crucial initiative for the integrated development of the Yangtze River Delta and the Yangtze Economic Belt, aiming to become a model for transportation infrastructure and bridge technology innovation in China [5].

Group 1 - The Zhang Jinggao Yangtze River Bridge has successfully completed the installation of the middle crossbeam at a height of 220 meters, marking the transition to the upper tower column construction phase [1][2] - The middle crossbeam, weighing 270 tons and measuring 9.5 meters in length, 9.9 meters in width, and between 13 to 14.7 meters in height, was designed with a streamlined shape and required precise alignment during installation [1][2] - The main tower of the bridge is designed to reach a total height of 350 meters, equivalent to 125 stories, and consists of three crossbeams, with the completed middle crossbeam connecting the upstream and downstream tower columns [1][2] Group 2 - Advanced technologies such as BIM simulation and force verification were utilized to ensure the precise installation of the crossbeam, with strict requirements for width and weld seam dimensions [2] - The bridge employs a world-first steel box-steel pipe concrete constraint combination system, reducing the self-weight of the tower by 50% while enhancing its load-bearing capacity [2] - The construction of the main tower is divided into 30 segments, with the installation of the 20th segment already completed, raising the height to over 220 meters, and the tower is expected to be topped by the end of this year [3] Group 3 - The Zhang Jinggao Yangtze River Bridge is anticipated to be completed by 2028, significantly shortening travel time between the cities of Zhangjiagang, Jingjiang, and Rugao, thereby promoting regional integration in the Yangtze River Delta [3]

Core Viewpoint - The article highlights China's rapid advancements in bridge construction, projecting that by 2030, it will achieve significant milestones including the world's longest suspension bridge and the highest bridge, redefining civil engineering limits [1][2]. Group 1: Achievements in Bridge Construction - By 2030, China is expected to have the world's longest suspension bridge, the highest bridge, and various record-breaking cable-stayed bridges [1]. - The Changtai Yangtze River Bridge, set to open this year, will become the world's largest cable-stayed bridge with a main span of 1208 meters, surpassing the current record of 1104 meters held by the Russky Island Bridge [2][4]. - The Zhangjingao Yangtze River Bridge, scheduled for completion in 2028, will feature a main span of 2300 meters, making it the world's largest suspension bridge [4][6]. Group 2: Innovative Engineering Techniques - Advanced surveying methods, modeling, and engineering technologies, including breakthroughs in material science, are driving China's bridge construction [1]. - The rapid development of artificial intelligence (AI) and the use of automated construction equipment are expected to enhance safety and efficiency in bridge building [1]. Group 3: Notable Bridge Projects - The Danqing Grand Bridge, measuring 164.8 kilometers, holds the Guinness World Record for the longest bridge [9][11]. - The Xiyuanmen Railway and Highway Bridge in Zhejiang will become the world's largest combined rail and road bridge upon completion [12]. - The Tian'e Longtan Grand Bridge in Guangxi is currently the largest arch bridge in the world, with a main span of 600 meters, surpassing the previous record by 155 meters [13][15]. Group 4: Future Prospects - The Lion's Ocean Bridge in Guangdong is expected to become the world's first double-deck suspension bridge exceeding 2000 meters in main span [18]. - The Guanyinsi Yangtze River Bridge in Hubei is projected to become the second-largest cable-stayed bridge upon its completion in 2026 [21][22]. - The Hong Kong-Zhuhai-Macao Bridge, completed in 2018, is the longest sea-crossing bridge globally, significantly reducing travel time between the regions [22][24].