11月26日，广湛高铁正式启动试运行。卓悦 摄 广湛高铁8月份启动联调联试动态检测，目前，全线旅客乘降、信息客服、防灾、综合视频等联调联试 阶段的各项试验内容已全部完成，已具备进入试运行阶段的条件。试运行主要是按试验大纲要求，进行 列车运行图参数测试、故障模拟、应急救援演练、按图行车试验等项目测试，为正式开通运营提供科学 依据。 据了解，广湛高铁施工难度较大，沿线地形地貌、地质条件复杂，全线桥隧比达到76.8%。其中正线桥 梁190座，隧道50座，路基92.654公里，重难点控制性工程有湛江湾海底隧道、向前隧道、机场1号隧 道、佛山特大桥。 广湛高铁项目建成后，将大幅缩短粤西地区与粤港澳大湾区的时空距离，极大地提高通道的输送能力， 有效改善粤西地区民众出行条件，对加快构建粤港澳大湾区与粤西地区高速铁路通道，加速广东省交通 互联互通，推动地区经济发展具有重要意义。(完) 广湛高铁启动试运行 中新网广州11月26日电 (郭军 蔡震)26日上午，随着试运行高铁列车从广州白云站开往湛江北站，广湛 高铁正式进入试运行阶段，线路开通运营进入倒计时模式。 广湛高铁是中国"八纵八横"高速铁路网沿海铁路客运大通道的重要组成部分 ...

中铁上海工程局沪宁合高速铁路南京枢纽项目党支部副书记文金华介绍，沪宁合高速铁路南京枢纽 站前2标项目进入攻坚阶段，随着沪宁合高速铁路南京特大桥跨滁河斜拉桥主塔封顶等关键节点完成， 项目累计产值突破总造价的60%，目前整个项目的桥梁下部工程基本完工，上部结构施工全面快速推 进。 沪宁合高速铁路是国家高铁通道承东启西的重要枢纽，是长江经济带综合交通枢纽建设的重大工 程，也是南京构建直连全国的"米"字形高速铁路网络的关键节点。项目建成后，对打造"轨道上的长三 角"、优化沿江地区铁路网布局等具有重要意义。 新建上海至南京至合肥高速铁路(简称"沪宁合高速铁路")南京枢纽项目建设按下"加速键"。11日， 该项目"抢进度、抓节点、保架梁"劳动竞赛启动仪式在南京市六合区举办。 作为中国"八纵八横"高速铁路网沿江高铁通道的重要组成部分，沪宁合高速铁路是沪渝蓉高速铁路 的东段线路，起自上海市新建上海宝山站，经江苏省苏州市、南通市、泰州市、扬州市、南京市，以及 安徽省滁州市、合肥市，接入既有合肥南站，线路全长约554公里，设计时速350公里，全线设16座车 站。 ...

Core Points - The construction of the Yan-Yu High-Speed Railway is progressing rapidly, with over 500 workers and more than 50 machines actively engaged in tunnel excavation during the National Day and Mid-Autumn Festival holidays [1][2] - The project is a significant part of the national "eight vertical and eight horizontal" high-speed railway network and is expected to reduce the travel time from Xi'an to Yulin from 5 hours to 2 hours upon completion in 2028 [2] Group 1 - The Yan-Yu High-Speed Railway's 6th section, constructed by the Xi'an Company of the West Chengdu High-Speed Railway and undertaken by China Railway 14th Bureau, spans 21.96 kilometers with a bridge and tunnel ratio of 90.5% [1] - The construction site is located in a challenging geological area characterized by steep slopes and potential geological hazards, necessitating high safety standards and complex construction techniques [1][2] Group 2 - The project team adheres to a "safety first, prevention-oriented, comprehensive management" principle, implementing a leadership presence and key position duty system to monitor high-risk operations [2] - The use of BIM technology allows for dynamic optimization of construction processes, ensuring continuous operation of critical tasks such as excavation and spoil removal during holiday periods [2]

Core Points - The Guangzhou to Xinxing South section of the Guangzhan High-Speed Railway has officially entered the joint debugging and testing phase as of September 30, 2023, with the first test train departing from Guangzhou Baiyun Station to Xinxing South Station [1][3]. Group 1: Project Overview - The Guangzhan High-Speed Railway is a crucial part of the national "Eight Vertical and Eight Horizontal" high-speed rail network, designed for a maximum speed of 350 km/h, with a total length of 401 kilometers [3]. - The section from Guangzhou to Xinxing South is 127 kilometers long and features a high bridge-tunnel ratio of 76.8%, with 190 bridges and 50 tunnels along its route [3][4]. - The project connects key regions including the Guangdong-Hong Kong-Macao Greater Bay Area and Hainan Free Trade Port, significantly enhancing transportation links [3][4]. Group 2: Construction and Collaboration - The China Railway Guangzhou Group and Guangdong Railway Construction Investment Group are collaborating to ensure the quality and progress of the project, addressing challenges such as complex geological conditions and variable coastal weather [3][4]. - The construction has involved rigorous site management and standardized practices to overcome difficulties, ensuring timely completion of the project [3]. Group 3: Impact and Significance - Once completed, the Guangzhan High-Speed Railway will greatly reduce travel time between the western Guangdong region and the Greater Bay Area, improving transportation capacity and conditions for local residents [4]. - The project is expected to accelerate the development of high-speed rail connections between the Greater Bay Area and western Guangdong, promoting regional economic growth [4].

Core Points - The Wenzhou-Fuzhou high-speed railway has officially commenced construction, marking a significant development in China's coastal high-speed rail network [1][3] - The railway will span approximately 303 kilometers with a design speed of 350 kilometers per hour, enhancing connectivity between key urban areas in Zhejiang and Fujian provinces [1][4] - The project is part of the national "14th Five-Year Plan" and is expected to be completed by 2030, with a construction period of five years [4] Industry Impact - The Wenzhou-Fuzhou high-speed railway is a crucial component of the "Eight Vertical and Eight Horizontal" high-speed rail network, which aims to improve transportation links across major economic regions in China [3][4] - The railway will significantly increase passenger capacity and improve the economic integration of the coastal city clusters in Guangdong, Fujian, and Zhejiang provinces [4][5] - The completion of the railway will facilitate the formation of a new high-standard transportation corridor connecting Ningbo and Guangzhou, thereby reducing travel time between major cities in the southeastern coastal region [5]

Core Points - The Wenzhou-Fuzhou High-Speed Railway (温福高铁) has commenced construction, with a total length of approximately 303 kilometers and an investment of 71.475 billion yuan [1] - Once completed, the railway will enable travel from Wenzhou, Zhejiang Province to Fuzhou, Fujian Province in about one hour [1] - The railway is a significant part of the national "Eight Vertical and Eight Horizontal" high-speed railway network, enhancing connectivity between the Yangtze River Delta, cross-strait integration areas, and the Guangdong-Hong Kong-Macao Greater Bay Area [1]

Core Insights - The successful completion of the Liuqian Tunnel marks a significant milestone in the construction of the Lanhe Railway, which is a key part of China's national high-speed railway network [1] Company Summary - China Railway Construction Corporation (CRCC) has overseen the construction of the Liuqian Tunnel, which took over three years to complete [1] - The tunnel, located in the Xigu District of Lanzhou, Gansu Province, spans approximately 2462 meters and traverses challenging geological conditions, including water-rich loess and fractured fault zones [1] Industry Summary - The Lanhe Railway, with a total length of 147.42 kilometers and a designed speed of 200 kilometers per hour, is an essential component of the "Eight Vertical and Eight Horizontal" high-speed railway network [1] - The completion of this project will enhance the regional railway network and eliminate the historical lack of railway connectivity in the Linxia Hui Autonomous Prefecture and Gannan Tibetan Autonomous Prefecture of Gansu Province [1]

Core Points - The construction of the Chongqi Railway and Highway Yangtze River Bridge, the world's largest span railway and highway cable-stayed bridge, is currently underway, marking a significant milestone in infrastructure development [1][3] - The bridge will allow for a high-speed crossing of the Yangtze River at a speed of 350 km/h without reduction, enhancing transportation efficiency [1][5] Group 1: Bridge Specifications - The Chongqi Bridge spans 4.09 kilometers and features a dual-layer design, with the upper layer accommodating a six-lane highway and the lower layer designed for high-speed and intercity railways [3][4] - The main navigation span of the bridge reaches 400 meters, making it the largest span railway and highway cable-stayed bridge under construction globally [3][4] Group 2: Construction Challenges and Innovations - The construction faced challenges due to complex geological conditions, including soft sandy soil, and tidal influences affecting the construction process [4] - The project has achieved several records, including the longest steel beam push length of 1205.4 meters for a railway and highway bridge, and the implementation of a new structural design combining concrete slabs and steel trusses [4] Group 3: Economic and Regional Impact - The completion of the bridge is expected to optimize the railway network layout along the Yangtze River, contributing to the integrated development of the Yangtze River Delta and promoting high-quality growth in the region [5]

Core Points - The Baotou to Yinchuan high-speed railway's Baotou to Huinong section has officially entered the trial operation phase as of September 27, marking a countdown to its full opening [1] - The railway spans approximately 420 kilometers, with a design speed of 250 km/h, significantly reducing travel time from Baotou to Yinchuan from 6 hours to under 3 hours upon completion [1][3] Summary by Sections Project Overview - The Baotou to Huinong section starts from Baotou Station in Inner Mongolia, passing through several cities, and ends at Huinong South Station in Ningxia, featuring a total of 10 stations [3] - The Inner Mongolia section is approximately 402 kilometers long, while the Ningxia section is about 18 kilometers [3] Testing and Operations - During the trial operation, various tests will be conducted, including running diagram parameter testing, fault simulation, emergency rescue drills, and scheduled train operations [3] - This comprehensive "real combat" testing aims to assess high-speed rail transport organization, train dispatching, operational density, and equipment status, providing a scientific basis for the official opening [3] Strategic Importance - The planned opening of the Baotou to Huinong section within the year will complete the entire Jing-Lan corridor of China's "eight vertical and eight horizontal" high-speed railway network [1][3]

Core Viewpoint - The construction of the Changgan Railway's Hunan section has officially commenced with the successful installation of the first pile for the Huangxing Town Airport Bridge, marking a significant milestone for the project [1] Group 1: Project Overview - The Changgan Railway is part of the national "eight vertical and eight horizontal" high-speed railway network, specifically the Chongqing-Changsha-Xiamen corridor [1] - The total length of the railway is approximately 429.4 kilometers, with a designed speed of 350 kilometers per hour [1] - The railway will include 11 stations along its route [1]