资讯编辑：罗莹 021-26093550 资讯监督：乐卫扬 021-26093827 资讯投诉：陈跃进 021-26093100 免责声明：Mysteel发布的原创及转载内容，仅供客户参考，不作为决策建议。原创内容版权归Mysteel所有，转载需取得Mysteel书面授 权，且Mysteel保留对任何侵权行为和有悖原创内容原意的引用行为进行追究的权利。转载内容来源于网络，目的在于传递更多信息，方 便学习与交流，并不代表Mysteel赞同其观点及对其真实性、完整性负责。 12月18日，从中国铁路广州局集团有限公司获悉，广州至湛江高铁将于12月22日建成通车，广州白云站 至湛江北站最快1小时32分可达，北部湾城市群与粤港澳大湾区时空距离大幅压缩。 广湛高铁连接广州、佛山、肇庆、云浮、阳江、茂名、湛江等地市，线路全长401公里，设计时速350公 里，此次率先开通新兴南、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。广湛高铁佛山站、佛肇站和接入广州站的线路正在有序建设中。 ...

Core Points - The main structure of the Lezhi Station for the Chengdu-Dazhou-Wanzhou High-Speed Railway has been completed, transitioning to the decoration and equipment installation phase, ensuring the line's timely operation [1][3][5] Group 1: Project Overview - Lezhi Station is located in Ziyang City, Sichuan Province, covering a total construction area of approximately 14,000 square meters, with a maximum capacity of 1,000 people [3][5] - The station features a major bridge approximately 4,580 meters long, designed for 2 platforms and 4 lines, with future plans to expand to 4 platforms and 8 lines [3][5] - The station will serve as a junction for the Chengdu-Dazhou-Wanzhou High-Speed Railway and the Chengdu-Chongqing High-Speed Railway, creating a cross-shaped transportation network [3][5] Group 2: Structural Details - The roof steel structure, a key highlight of the building, utilizes a combination of concrete frame and grid structure, balancing stability and aesthetics [5] - The grid structure measures 138.2 meters in length, 68.0 meters in width, and weighs approximately 600 tons, with a lifting height of 30 meters [5] - The construction faced significant challenges due to the dense components and high precision requirements, necessitating collaborative efforts from the project team and experts to optimize the construction plan [5][7] Group 3: Engineering and Safety Measures - The project team implemented a specialized safety plan and management details to ensure the stability and precision of the grid structure's lifting process [5][7] - Strict inspections of components upon arrival, 3D modeling to predict risks during construction, and comprehensive technical briefings were conducted to maintain quality control [5][7] Group 4: Strategic Importance - The Chengdu-Dazhou-Wanzhou High-Speed Railway is a crucial part of China's "Eight Vertical and Eight Horizontal" high-speed rail network, connecting various key cities in Sichuan and Chongqing [7]

Core Insights - The "Linghao" shield machine has successfully surpassed the 10,000-meter mark in the construction of the Chongtai Yangtze River Tunnel, moving closer to the goal of achieving a 350 km/h high-speed rail crossing [1][4] - The Chongtai Yangtze River Tunnel is a critical project in China's "Eight Vertical and Eight Horizontal" high-speed rail network, connecting Chongming District in Shanghai with Taicang City in Jiangsu Province [4] Group 1 - The "Linghao" shield machine measures approximately 148 meters in length and weighs around 4,000 tons, featuring a 15.4-meter diameter cutter head [4] - The machine is capable of autonomous operation with intelligent analysis and decision-making, achieving a world record of 718 meters of tunnel excavation per month for high-speed rail [4] - The total length of the Chongtai Yangtze River Tunnel is 14.25 kilometers, with the shield section measuring 13.201 kilometers [4] Group 2 - The tunnel will significantly reduce travel time between cities along the Yangtze River, such as Shanghai, Nanjing, and Hefei, contributing to the development of the "Railway on the Yangtze River Delta" [4] - The construction of the tunnel is expected to enhance the quality of development for the Yangtze River Economic Belt, with a travel time of just 17 minutes from Chongming to Baoshan Station in Shanghai [4]

新华财经渥太华12月13日电（记者林威）加拿大联邦政府12日宣布，已选定该国首都渥太华至第二大城 市蒙特利尔作为加拿大首个高铁网络建设的首个开工路段。 预计整个项目将对加拿大国内生产总值贡献350亿加元（约合254亿美元），在建设期间创造5.1万个就 业岗位。 （文章来源：新华社） 据加拿大交通部发布的新闻稿，该路段全长约200公里，预计于2029年动工，相关的前期采购活动将于 2026年启动。 新闻稿称，加拿大首个高铁网络全长约1000公里，从该国最大城市多伦多延伸至魁北克市，列车时速最 高可达300公里，将使两地间的旅行时间缩短一半，连接加拿大近半数人口。 ...

加拿大联邦政府12日宣布，已选定该国首都渥太华至第二大城市蒙特利尔作为加拿大首个高铁网络建设 的首个开工路段。 预计整个项目将对加拿大国内生产总值贡献350亿加元（约合254亿美元），在建设期间创造5.1万个就 业岗位。 （文章来源：新华社） 新闻稿称，加拿大首个高铁网络全长约1000公里，从该国最大城市多伦多延伸至魁北克市，列车时速最 高可达300公里，将使两地间的旅行时间缩短一半，连接加拿大近半数人口。 据加拿大交通部发布的新闻稿，该路段全长约200公里，预计于2029年动工，相关的前期采购活动将于 2026年启动。 ...

本报昆明12月10日讯（记者管培利）从京昆高铁西昆公司获悉：渝昆高铁重难点控制性工程彝良隧道10 日上午贯通，标志着我国高铁建设在长大复杂地质条件下再次取得重大突破，为全线建成通车打下坚实 基础。 彝良隧道位于云南省昭通市，全长24.8公里，设计时速350公里，最大埋深920米，采用双洞单线设计形 式，是我国目前贯通里程最长、时速最快的高铁隧道。 （文章来源：经济日报） ...

央视网消息：12月10日，我国时速350公里高铁最长隧道——渝昆高铁彝良隧道顺利贯通。 彝良隧道位于云南省昭通市境内，全长24.8公里，设计时速350公里，最大埋深920米，采用双洞单线的设计形式，是我国目前贯 通里程最长、时速最快的高铁隧道。 渝昆高铁全长约700公里，其中云南段长388.6公里，是云南省内首条时速350公里的高速铁路，目前已进入全面冲刺阶段，全线 建成通车后，重庆到昆明的行车时间将压缩至两个半小时左右，对促进成渝地区双城经济圈与滇中城市群之间互联互通，推动沿线 地区经济社会高质量发展具有重要意义。 中国铁建大桥局渝昆高铁项目负责人 饶胜斌：针对高地应力岩爆，我们采取提前应力释放、喷射纤维混凝土、增加预应力锚杆 等措施，有效保障了施工安全和工程推进。 隧道穿越素有"地质博物馆"之称的乌蒙山腹地，施工面临岩爆、涌水、瓦斯等复杂地质条件考验，建设难度极大。 ...

Core Viewpoint - The successful completion of the Guangyuzhai Tunnel marks a significant milestone in the construction of the Yuwan High-Speed Railway, which is crucial for enhancing regional transportation and economic development in Northeast Chongqing [1][7]. Group 1: Project Details - The Guangyuzhai Tunnel, located in Wanzhou District of Chongqing, has a total length of 8,575 meters and a maximum burial depth of approximately 350 meters, making it one of the key challenging projects along the Yuwan High-Speed Railway [3][4]. - The tunnel construction faced complex geological conditions, including the presence of weak surrounding rock and the need to pass under existing transportation lines, such as the Dawan Railway and G42 Hu-Rong Expressway, with a minimum clearance of only 19 meters at the interchange [3][4]. Group 2: Construction Techniques - The project team from China Railway 11th Bureau implemented an auxiliary tunnel scheme using "central inclined shaft + exit lateral tunnel" to achieve efficient construction goals [4]. - Innovative construction techniques were employed, including controlled blasting and a two-step excavation method for the entrance section, as well as a non-blasting three-step excavation for the exit section, which helped to minimize disturbance to surrounding rock and ensure the safety of existing lines [4]. Group 3: Economic Impact - Once completed, the Yuwan High-Speed Railway will reduce the travel time from downtown Chongqing to Wanzhou to under one hour, significantly improving the regional high-speed rail network and promoting high-quality economic and social development in Northeast Chongqing [7].

图为当日，一列动车组列车驶过盘兴高铁北环线特大桥。 新华社记者 杨文斌摄 (责编：白宇、卫嘉) 本报贵阳11月28日电 （记者黄娴、陈隽逸）28日，贵州盘州至兴义高速铁路建成通车，标志着贵州实 现了省内各市州中心城市高铁全覆盖。盘兴高铁全长约99公里，设计时速250公里。 《 人民日报 》（ 2025年11月29日 04 版） ...

Core Viewpoint - The opening of the Panzhou-Xingyi high-speed railway marks the completion of a high-speed rail network connecting nine major cities in Guizhou, enhancing the province's integration into broader economic and tourism landscapes [1][2] Group 1: High-Speed Rail Development - The Guizhou high-speed rail network connects major tourism and economic resources, facilitating faster access to the Guangdong-Hong Kong-Macau Greater Bay Area [1] - The first high-speed rail line from Guiyang to Guangzhou opened in December 2014, marking Guizhou's entry into the high-speed rail era [1] - The completion of the Hukun high-speed railway in December 2016 established a rapid connection between Guizhou and the Yangtze River Delta [1] - The opening of the Yuxi-Guizhou railway in January 2018 highlighted the region's historical significance and tourism potential [1] - The Chengdu-Guizhou high-speed railway opened in December 2019, linking Guizhou to the Chengdu-Chongqing economic circle [1] - The Gui-Nan high-speed railway, which opened in August 2023, is Guizhou's first line with a speed of 350 km/h, enhancing connectivity to Southeast Asia [1] Group 2: Economic Impact - The completion of the Panzhou-Xingyi high-speed railway fills the last gap in high-speed rail connectivity among Guizhou's nine central cities, reshaping the regional economic landscape [2] - Over the past 11 years, the development of high-speed rail has transformed Guizhou from a "southwest hinterland" into an open frontier [2]