据陈涛介绍，五年来，汕头坚持交通先行、联动发展，区域辐射带动能力显著提升。高速公路基本实现 全域覆盖，密度居广东全省第六位，并启动连接深圳、厦门等经济特区的汕汾高速改扩建工程。铁路建 设取得突破，汕汕高铁已全线通车，实现90分钟直通粤港澳大湾区，开启了双城生活的新可能；未来还 将与正在建设的漳汕高铁共同构成串联珠三角、海西与长三角的沿海高铁大通道。 此外，汕头持续增强城市综合服务功能。汕头大学东海岸校区、广东以色列理工学院南校区二期，以及 汕头市人民医院、市中医医院东院区、汕头体育中心等一大批教育、医疗、体育设施建成投用，城市服 务能力实现提档升级。(完) 与此同时，汕头不久前开通了直达福建、浙江方向的动车，标志着汕头来往长三角城市群正式进入"高 铁时代"，千里之遥，一日往返；粤东城际铁路已全线开工，"汕潮揭"半小时通勤圈正加速实现。 中新网广州1月4日电 (程景伟 马悠楠)广东省人民政府新闻办公室4日在广州举行"'十四五'广东成就"汕 头专场新闻发布会，汕头市委副书记、市长陈涛表示，汕头全力打造高水平全国性综合交通枢纽，五年 来完成交通基础设施投资810亿元，较"十三五"时期增长1.5倍。 港航建设提质扩能 ...

Core Points - The Shantou-Shantou High-Speed Railway has officially entered the track-laying construction phase, with a solid foundation laid for meeting operational conditions by the end of the year [1] - The total length of the railway is 162.368 kilometers, with a design speed of 350 kilometers per hour, and the section from Shantou South to Shantou is 19.8 kilometers long, including a 9.7-kilometer underwater tunnel [1] - The underwater tunnel is a key engineering project with a maximum gradient of 29‰, and the construction team is actively coordinating resources to ensure timely completion [1] - Once fully operational, the railway's transport capacity will increase from an average of 24 pairs of trains per day to over 50 pairs, enhancing passenger capacity between major economic regions [1] Industry Impact - The Shantou-Shantou High-Speed Railway will connect with the under-construction Zhang-Shan High-Speed Railway, further improving north-south passenger transport capabilities in the Pearl River Delta, Haixi, and Yangtze River Delta regions [1] - This development will provide a significant transportation corridor for cities like Shantou to integrate into the Greater Bay Area and connect with the East China region [1]

Group 1 - The first prefabricated box girder of the Zhangshan High-speed Railway was successfully completed, marking a new construction phase for the bridge engineering along the entire line [1][3] - The Zhaoan beam factory, built by Southeast Coastal Railway Fujian Co., Ltd. and constructed by China Railway Bridge Bureau Group, integrates advanced information technologies such as BIM and GIS into the production process [3] - The intelligent system at the Zhaoan beam factory enhances production quality, efficiency, and management levels through real-time data collection and AI analysis, facilitating rapid information transfer between on-site construction and management [3] Group 2 - The Zhangshan High-speed Railway is a key component of the national "Eight Vertical and Eight Horizontal" high-speed railway network, specifically the "Coastal Corridor," which connects major cities in the Guangdong and Fujian provinces [5] - The completion of the project is expected to accelerate communication between the Guangdong-Hong Kong-Macao Greater Bay Area and the Haixi Economic Zone, enhancing connectivity and economic collaboration between Fujian and Guangdong [5]

Core Viewpoint - The construction of the Zhangshan High-speed Railway Dongshan Cross-sea Bridge has entered a new phase, marked by the successful completion of the bridge deck and the first offshore pier, indicating accelerated progress in the project [1][2]. Group 1: Project Overview - The Dongshan Cross-sea Bridge spans 20.26 kilometers, connecting Yunxiao County, Dongshan County, and Zhao'an County in Fujian Province, and is a key control project of the Zhangshan High-speed Railway [1]. - The bridge is constructed by Southeast Coastal Railway Fujian Co., Ltd., with the China Railway Bridge Bureau Group responsible for the construction [1]. Group 2: Construction Techniques and Challenges - The project team utilized advanced technologies, including the Beidou satellite positioning system, to enhance the precision of pile driving operations, ensuring that the construction machinery followed predetermined paths [2]. - The team overcame challenges posed by complex local hydrological conditions and significant tidal differences through an intelligent monitoring system that tracked tidal changes, optimizing the construction schedule [2]. Group 3: Impact on Regional Connectivity - Upon completion, the Zhangshan High-speed Railway will integrate with the Fuzhou-Xiamen High-speed Railway and the Shantou-Shantou High-speed Railway, enhancing the regional transportation network and promoting resource integration between Guangdong and Fujian provinces [2].

Core Points - The successful completion of the last bridge deck panel marks the joining of the Zhangshan High-speed Railway Dongshan Cross-sea Bridge trestle [1][3] - The Dongshan Cross-sea Bridge spans 20.26 kilometers, connecting Yunxiao County, Dongshan County, and Zhao'an County in Fujian Province, and is a key control project of the Zhangshan High-speed Railway [3][5] - The trestle bridge, measuring 9.4 kilometers, serves as an important construction "auxiliary road" and "platform" for the main bridge [3][5] Construction Details - The project faced complex construction conditions, including strong winds and seawater erosion, which were overcome through technical innovations and precise construction methods [5] - The project team utilized the BeiDou satellite positioning system to ensure accurate placement of steel pipe piles, enhancing construction precision [5] - The completion of the trestle bridge allows for a significant reduction in construction distance from 20 kilometers to 9 kilometers, accelerating the overall bridge construction process [7] Strategic Importance - The Zhangshan High-speed Railway is a vital part of the national "eight vertical and eight horizontal" high-speed railway network, enhancing connectivity between the Yangtze River Delta, Guangdong-Hong Kong-Macao Greater Bay Area, and Southeast coastal city clusters [7] - The project is expected to promote the integration of industrial resources between Guangdong and Fujian provinces and facilitate regional economic and social development [7]

Core Viewpoint - The approval of the Zhangshan High-Speed Railway marks a significant advancement in China's "Eight Vertical and Eight Horizontal" high-speed rail network, aiming to enhance connectivity between Fuzhou and Guangzhou, reducing travel time to approximately 3.5 hours [1] Group 1 - The Zhangshan High-Speed Railway has received official approval from the State Council, allowing construction to commence [1] - The railway will span a total length of 174.68 kilometers with a designed speed of 350 kilometers per hour [1] - The route will pass through key locations including Zhangzhou, Longhai, Zhangpu, Yunxiao, Dongshan, and Zhaoan, connecting to Guangdong [1] Group 2 - Upon completion, the Zhangshan High-Speed Railway will integrate with the Fuzhou-Xiamen and Shantou-Shantou high-speed rail lines [1] - This integration will create a high-speed rail corridor between Fuzhou and Guangzhou, facilitating travel at a speed of 350 kilometers per hour [1] - The travel time between Fuzhou and Guangzhou will be significantly reduced to about 3.5 hours, enhancing regional connectivity [1]