转自：北京日报客户端 过濠江特大桥。来源：广东发布 两条高铁，开通在即。 12月18日，国铁集团发布消息，广州至湛江高速铁路（广湛高铁）将于12月22日建成通车。 另据"广东发布"透露，汕头至汕尾高速铁路（汕汕高铁）的汕头至汕头南段也将于同日开通运营，这条 高铁将全线贯通。 在此基础上，广东将形成一条横贯东西的"大动脉"。东南沿海也将迎来纵贯南北的"超级通道"。 施工难度国内外罕见 据广东铁投介绍，广湛高铁是广东省自主投资建设技术最复杂、线路最长、投资最大的铁路项目。 其全长401公里，设计时速350公里，自广州站引出，终至湛江北站。 动车组驶 车组驶出汕头湾海底隧道。来源：广东发布 其中，汕尾至汕头南段已于2023年12月开通运营。余下的汕头至汕头南段长为19.8公里，开通后将实现 汕汕高铁全线通车。 来源：中 国铁路 此次将先开通新兴南、阳春东、阳江北、马踏、茂名南、吴川、湛江北7座车站，两端分别接入广州白 云站和湛江北站。佛山站、佛肇站和接入广州站的线路正在建设中。 汕汕高铁则是粤东地区首条设计时速350公里的高速铁路。 该线路全长162公里，起自汕头站，途经揭阳、汕尾，接入广州至汕尾高铁（广汕高铁）汕 ...

Core Viewpoint - The completion of the first box girder pouring for the Hezhang High-speed Railway in Guangxi marks the official start of box girder production, which is crucial for the project's progress and quality assurance [1][2]. Group 1: Project Overview - The Hezhang High-speed Railway in Guangxi spans approximately 139 kilometers with a designed speed of 350 km/h, serving as a significant part of China's "Eight Vertical and Eight Horizontal" high-speed rail network [5]. - The project is positioned as an important inter-regional passenger dedicated line and a new high-speed corridor connecting the Beibu Gulf, Pearl River Delta, and Yangtze River Delta [5]. Group 2: Construction Progress - The first box girder poured measures 32.6 meters in length and weighs 693 tons, utilizing advanced construction techniques such as intelligent tensioning and vacuum-assisted grouting [2]. - As of now, 2,975 bridge piles have been completed, and 79 bridge piers have been constructed, indicating steady progress in bridge engineering [5]. Group 3: Future Plans and Impact - The project aims to expedite land use approvals and land acquisition to facilitate the full commencement of the roadbed and other bridge constructions [3]. - The Hezhang High-speed Railway is expected to be completed and operational by the end of 2028, significantly enhancing railway transport capacity in Guangdong and Guangxi, optimizing regional railway network layout, and promoting high-quality economic development along the route [5].

Core Viewpoint - The construction industry is actively engaged in various infrastructure projects during the national holidays, showcasing dedication and responsibility among workers [1][2][3][4][5][6]. Group 1: Construction Activities - In Jiangxi, over 1,200 workers from China Railway 25th Bureau are working on the Bai Shi Qiu Bridge, which is crucial for subsequent rail laying [2]. - In Shaanxi, the construction of the Shenwa Railway is progressing with a focus on key projects like the Kuye River Bridge and the Caoduo Mountain Tunnel [2]. - In Guangxi, 415 workers are involved in the Guangxi Linning Expressway project, utilizing various heavy machinery to meet annual construction goals [3]. - In Hubei, hundreds of workers from China Railway 18th Bureau are working around the clock on the Yuefu High-speed Railway's Moon Mountain Bridge [3][4]. - In Jiangsu, the construction of the Nantong-Haitai Yangtze River Tunnel is advancing with a domestic shield machine achieving an average progress of 16 meters per day [5]. - In Guangdong, over 200 workers are tackling challenges in the Hezhang High-speed Railway project, particularly in areas with complex geological conditions [6]. Group 2: Worker Commitment - Workers express pride in contributing to significant infrastructure projects during the holidays, emphasizing the importance of their roles in improving transportation [3][4]. - Project leaders highlight the need for safety and progress, especially during holiday periods, to ensure timely completion of critical infrastructure [2][4][6].

Group 1 - The construction of the Niu Pi River Grand Bridge, a key component of the Huzhan High-Speed Railway in Guangxi, officially commenced, marking the full start of the preliminary construction phase of the railway project [1][3] - The preliminary construction phase includes critical engineering points to accelerate project progress, with eight bridges, including the Niu Pi River Grand Bridge, being part of this phase [3][4] - The Niu Pi River Grand Bridge spans 1,605.4 meters and is designed with 340 pile foundations and 48 piers, making it essential for connecting the Guangxi and Guangdong sections of the railway [3][4] Group 2 - Advanced detection technologies, such as seismic wave cross-hole CT detection, are being utilized to ensure the quality and safety of the bridge's pile foundation construction [4] - As of now, 1,135 pile foundations and 7 piers have been completed for the Guangxi section of the Huzhan High-Speed Railway, with plans to expedite land approval and other necessary processes [4] - The Huzhan High-Speed Railway, approximately 139 kilometers long with a design speed of 350 km/h, is a significant part of China's high-speed rail network, expected to be completed by the end of 2028, enhancing regional transportation and economic development [5]

Core Viewpoint - Zhanjiang is actively developing a modern high-speed railway network to enhance connectivity in the region, with multiple key projects underway to establish a comprehensive transportation system [1]. Group 1: High-Speed Railway Projects - The construction of the Guangdong section of the He-Zhan high-speed railway has commenced in June 2023, following the completion of the bidding process [3]. - The He-Zhan high-speed railway will connect from Hepu Station in Guangxi to Zhanjiang, integrating with the Shenzhen-Zhanjiang railway, and is a crucial part of China's "eight vertical and eight horizontal" high-speed railway network [3]. - The project is expected to be completed and operational by the end of 2028, with a planned construction period of 1,310 calendar days [4]. Group 2: Zhanjiang North Station - The construction of Zhanjiang North Station for the Guang-Zhan high-speed railway is nearing completion, with all station house and sign installations finished [2]. - The station is currently undergoing metal roofing and interior decoration [2]. Group 3: Zhanhai High-Speed Railway - The Zhanhai high-speed railway, connecting Zhanjiang to Haikou, is a significant component of the national high-speed railway network and aims to enhance connectivity between Hainan Province and the Guangdong-Hong Kong-Macao Greater Bay Area [5]. - The Zhanhai high-speed railway will link with Zhanjiang North Station and connect to the deep Zhan railway, Guang-Zhan high-speed railway, and He-Zhan high-speed railway, facilitating access to the Xuwen Port area and the Hainan circular high-speed railway [6]. - The project aims to start construction by the end of 2025 [7].