Core Viewpoint - The successful completion of the last concrete pouring for the Tujiao Hub Interchange Double-Line Bridge of the Chengyu Central High-Speed Railway marks a significant milestone for the project, laying a solid foundation for the entire line's operation [1][3] Group 1: Project Details - The Tujiao Hub Interchange Double-Line Bridge is located in Chongqing's Tongliang District, with a total length of 3,271.6 meters, crossing the Chongqing Third Ring Expressway and the Tong'an Expressway, featuring 92 piers and 2 abutments [1][3] - The continuous beam that was recently completed spans approximately 242 meters, making it the longest continuous beam in the Chongqing section of the Chengyu Central High-Speed Railway [1][3] Group 2: Technological Advancements - The project utilized an upgraded 6-meter intelligent cantilever bridge machine, which allows for longer segment casting in a single pour, making installation and removal more convenient, while enhancing structural safety and stability [3] Group 3: Strategic Importance - The Chengyu Central High-Speed Railway is a crucial part of China's "Eight Vertical and Eight Horizontal" high-speed rail network, connecting Chongqing North Station to Chengdu Station over a total length of 292 kilometers, with a designed speed of 350 kilometers per hour [3] - Upon completion, the railway will connect with several existing and under-construction high-speed rail lines, improving the transportation network in the Chengyu region and significantly reducing travel time for residents along the route [3]

这是7月8日拍摄的成渝中线高铁土桥枢纽互通双线特大桥建设现场（无人机照片）。 7月8日，工人在成渝中线高铁土桥枢纽互通双线特大桥建设现场施工作业（无人机照片）。 当日，由中铁五局承建的成渝中线高铁土桥枢纽互通双线特大桥连续梁顺利合龙，该连续梁全长约242米，是成渝中线高铁重庆段跨度最大的 连续梁。土桥枢纽互通双线特大桥位于重庆市铜梁区，全长3271.6米，上跨重庆三环高速及铜安高速公路，共设有92个桥墩，2个桥台。 成渝中线高铁是我国"八纵八横"高铁网沿江通道的重要组成部分，正线全长292公里，设计时速350公里。 当日，由中铁五局承建的成渝中线高铁土桥枢纽互通双线特大桥连续梁顺利合龙，该连续梁全长约242米，是成渝中线高铁重庆段跨度最大的 连续梁。土桥枢纽互通双线特大桥位于重庆市铜梁区，全长3271.6米，上跨重庆三环高速及铜安高速公路，共设有92个桥墩，2个桥台。 成渝中线高铁是我国"八纵八横"高铁网沿江通道的重要组成部分，正线全长292公里，设计时速350公里。 新华社记者 唐奕 摄 新华社记者 唐奕 摄 这是7月8日拍摄的成渝中线高铁土桥枢纽互通双线特大桥建设现场（无人机照片）。 当日，由中铁五局承建 ...

Core Points - The Beijing-Shenyang High-Speed Railway (京沈高铁) officially commenced operations on July 1, marking the first safety standard demonstration line in Northeast China [1] - This railway is part of the national "Eight Vertical and Eight Horizontal" high-speed rail network, with a total length of 708 kilometers, connecting key economic regions [1] Operational Enhancements - The introduction of the new CR400BF-GS intelligent train model increases passenger capacity from 578 to 619 due to optimized interior layout and equipment miniaturization [1] - Average travel speed on the section increased by 8.6 km/h, with benchmark trains achieving an average speed increase of 23 km/h [1] - Total train mileage increased by 7.3%, amounting to an additional 7,000 kilometers [1] Travel Time Improvements - The fastest travel time from Beijing to Shenyang is now 2 hours and 29 minutes, reduced by 15 minutes [1] - New benchmark trains now connect cities like Tieling, Siping, and Benxi to Beijing, with travel times reduced by 44, 53, and 67 minutes respectively [1] - A new high-quality benchmark train service between Beijing and Dandong operates at 350 km/h, with a travel time of 3 hours and 47 minutes, reduced by 67 minutes [1] Service Expansion - Over 40 additional train services have been added to connect county-level cities such as Fuxin and Fengcheng [1] - A total of 56 high-quality benchmark trains operating at 350 km/h with fewer stops have been introduced on the Beijing-Shenyang High-Speed Railway [1]

Core Viewpoint - The implementation of the new railway operation schedule for the third quarter enhances the speed and efficiency of major high-speed rail corridors in China, significantly improving passenger transport capacity [1] Group 1: Speed Enhancements - Major high-speed rail corridors, including the Beijing-Harbin and Shanghai-Kunming routes, will now operate at a speed of 350 kilometers per hour, marking a significant upgrade in service [1] - The Beijing-Shenyang section of the Beijing-Harbin high-speed railway will also run at the new speed of 350 kilometers per hour [1] Group 2: New Services - The benchmark train service on the Beijing-Harbin high-speed railway will extend its route to Beijing West Station for the first time [1] - New direct train services from Mudanjiang and Dandong to Beijing will commence, providing more travel options for passengers [1] - Cities such as Tieling, Siping, and Benxi will now have benchmark train services stopping in Beijing, further connecting major cities in Northeast China with the capital [1] Group 3: Travel Time Reduction - The adjustments in the train schedule will lead to a further reduction in travel time between major cities in Northeast China and Beijing, enhancing connectivity and convenience for travelers [1]

渝昆高铁全长约700公里，其中云南省境内长388.6公里，是云南省内首条设计时速350公里的高速铁路。全线建成 通车后，重庆到昆明的行车时间将大幅压缩，极大提升西南地区交通便利性，对促进区域经济高质量发展具有重 要意义。（记者樊曦、丁怡全） 图为宝云隧道建设现场。（中铁十八局供图） 记者从京昆高铁西昆公司获悉，6月30日，经过建设者1290天的艰苦奋战，我国"八纵八横"高铁网京昆通道重要组 成部分渝昆高铁建设取得重大突破。由中铁十八局承建的全线最长单洞双线隧道——宝云隧道顺利贯通，这是全 线首座贯通的16公里以上特长隧道，为全线建成通车按下了"加速键"。 宝云隧道位于云南省曲靖市会泽县境内，全长16.8公里，最大埋深达386米，是渝昆高铁全线控制性工程。据中铁 十八局项目现场负责人刘刚介绍，隧道地处云贵高原，地形起伏大，地质构造复杂，穿越软岩变形、断层富水、 岩性突变等不良地质。受地质条件、建设成本和便于大型机械化施工组织等因素影响，宝云隧道采用单洞双线设 计，隧道断面大、安全风险高。施工过程中，建设者运用地质雷达、超前水平钻孔等先进技术精准掌握前方地质 情况，采用3个辅助坑道，8个工作面同时进行施工，确保隧 ...

Group 1 - The core viewpoint of the news is the significant progress in the construction of China's "Eight Vertical and Eight Horizontal" high-speed rail network, with 81.5% completed and 14% under construction [1][4] - The completed sections include major corridors such as the Beijing-Shanghai and Beijing-Harbin, with ongoing construction in various segments of the network [4] - The opening of the Chongqing to Jiangjiang section of the Yuxia high-speed railway is expected to greatly reduce travel time, with the fastest journey from Chongqing to Changsha taking approximately 3 hours and 53 minutes [6][10] Group 2 - The Yuxia high-speed railway spans 242 kilometers with a design speed of 350 km/h, featuring seven stations including the newly built ones and the expanded Qianjiang station [8] - After the opening of the Yuxia high-speed railway, up to 54 high-speed trains will operate daily, enhancing connectivity between major cities in the region [10] - Chongqing East Station, as a major hub in the western high-speed rail network, will facilitate connections among multiple high-speed lines and conventional railways [10]

新华财经重庆6月27日电 27日10时许，G8699次列车从重庆东站驶出，向着黔江站飞驰而去，渝厦高铁 重庆东到黔江段正式开通运营。 "在站房东西主入口，我们以重庆市树黄桷树为原型，打造超高超大多曲面树形柱，最大的一根外表由 近1200片大小不一的3毫米厚不锈钢板组成。建设团队通过三维可视化模型和BIM技术，确保每片钢板 拼缝实现'毫米级'精度，实现了建筑美学上的突破。"李双来说。 步入候车大厅，13万平方米管帘式双曲天花吊顶气势磅礴，宛如嘉陵江水奔腾而下。据参建单位中铁建 工集团重庆东站项目总工程师瓮雪冬介绍，为提升旅客候车舒适度，大厅内设置5座4米高的巨型"山茶 花"造型一体式集成岛式空调，该空调系统接入站房智慧能源管控平台，可实时监测、动态调节，与传 统空调相比，每年可节约38万度电，减少二氧化碳排放298吨。 至此，渝厦高铁重庆东至长沙段全线贯通，重庆至长沙最快3小时53分可达，旅行时间大幅压缩，成渝 地区双城经济圈与长株潭城市群间联系更加紧密，将为沿线经济社会发展注入强劲动能。 穿山越岭启通途 渝厦高铁重庆东至黔江段途经重庆市南岸区、巴南区、南川区、武隆区、彭水苗族土家族自治县、黔江 区，接入黔江至 ...

Core Points - The opening of the Chongqing East to Qianjiang section of the Yuxia High-Speed Railway on June 27 marks a significant addition to China's "eight vertical and eight horizontal" high-speed rail network [1][4][19] - This new segment connects Chongqing to the Qianjiang-Zhangjiajie-Changde high-speed rail, creating a rapid passenger transport corridor between the Chengdu-Chongqing economic circle and the Changsha-Zhuzhou-Xiangtan urban agglomeration [1][3] Group 1: Infrastructure Development - The Yuxia High-Speed Railway spans 242 kilometers with a design speed of 350 km/h, enhancing connectivity in the region [1][4] - The Chongqing East Station, the largest high-speed rail hub in Western China, officially opened on the same day, featuring a unique architectural design and advanced energy-efficient systems [16][18] - The station will facilitate up to 54 daily train services, significantly reducing travel times between key cities [8][15] Group 2: Economic Impact - The railway's opening is expected to boost local economies, particularly in tourism, by connecting over 30 ethnic minority areas and numerous scenic spots [4][6] - Special promotional ticket packages have been introduced to attract tourists, enhancing the economic benefits of the new rail line [6] - The ongoing railway construction in the Chengdu-Chongqing area has seen nearly 380 billion yuan invested, indicating a strong commitment to infrastructure development [9][15] Group 3: Future Prospects - The Chengdu-Chongqing railway network is projected to reach over 9,000 kilometers, with more than 3,400 kilometers of high-speed rail, facilitating an estimated 55 million passenger trips annually by 2024 [15][19] - The "eight vertical and eight horizontal" high-speed rail network is 81.5% completed, with ongoing projects expected to further enhance regional connectivity and economic growth [19][23]

Core Points - The construction of the Hongyuan Station, part of the Xining to Chengdu Railway in Sichuan, has officially begun, marking the start of the station building project [1][5] - The Xining to Chengdu Railway is a crucial segment of China's "eight vertical and eight horizontal" high-speed rail network, connecting Lanzhou and Xining to Guangzhou [3][8] - The Sichuan section of the railway spans approximately 170 kilometers, featuring five new stations before entering Gansu province [3] Construction Challenges - The Hongyuan Station is located in a high-altitude area, with construction sites at elevations above 3,500 meters, presenting challenges such as hypoxia, harsh weather, and significant temperature fluctuations [6] - The project also faces environmental concerns, including ecological sensitivity and resource shortages, necessitating a detailed construction plan and resource management strategy [6] Technological Integration - The project employs BIM technology for comprehensive visualization and precision management throughout the construction process, enhancing safety through various monitoring systems [6] Economic Impact - Upon completion, the railway will significantly improve travel conditions for cities along the route, fostering collaboration between the Lanzhou-Xining and Chengdu-Chongqing urban clusters, and contributing to the "Belt and Road" and "Yangtze River Economic Belt" initiatives [8]

5月11日，深江铁路跨磨刀门水道主桥东主塔（左一）封顶（无人机照片）。 当日，中铁建大桥局承建的深江铁路关键性工程跨磨刀门水道主桥东主塔封顶。该桥横跨中山和江门两市交界的西江磨刀门水道，为140米 高墩大跨斜拉桥。 深江铁路是我国"八纵八横"高铁网沿海通道的重要组成部分，线路起自深圳西丽站，正线全长116公里，跨越珠江口，串联深圳、东莞、广 州、中山和江门等5座城市。该工程建成后，深圳与江门可实现1小时内通达。 新华社记者 刘大伟 摄 新华社记者 刘大伟 摄 5月11日，施工人员在深江铁路跨磨刀门水道主桥东主塔顶作业（无人机照片）。 当日，中铁建大桥局承建的深江铁路关键性工程跨磨刀门水道主桥东主塔封顶。该桥横跨中山和江门两市交界的西江磨刀门水道，为140米 高墩大跨斜拉桥。 深江铁路是我国"八纵八横"高铁网沿海通道的重要组成部分，线路起自深圳西丽站，正线全长116公里，跨越珠江口，串联深圳、东莞、广 州、中山和江门等5座城市。该工程建成后，深圳与江门可实现1小时内通达。 新华社记者 刘大伟 摄 5月11日，深江铁路跨磨刀门水道主桥东主塔封顶（无人机照片）。 5月11日，深江铁路跨磨刀门水道主桥东主塔（右一）封 ...