江西首条大直径高铁盾构隧道贯通 中新社北京11月28日电 (记者 刘文文)记者从中铁十四局获悉，江西省首条大直径高铁盾构隧道昌九高 铁天祥大道隧道28日顺利贯通，为昌九高铁全线铺轨施工打下坚实基础。 天祥大道隧道是昌九高铁关键控制性工程，北起南昌市高新区昌东镇阳门村，南至高新区昌东镇山湖 村，全长6.379公里，为单洞双线隧道，盾构段长4.4公里，盾构直径14.8米。这是是目前国内施工环境 和穿越地质条件最为复杂的高铁盾构隧道之一。 广告等商务合作，请点击这里 据中铁十四局昌九高铁盾构项目总工程师张敬祥介绍，在盾构施工时，盾构机需要穿越"上土下岩"风化 不均的2000余米复合地层，地层中的全风化泥质砂岩质地黏软如"橡皮泥"。项目团队利用化学药剂浸 泡、高压水枪冲洗和改造刀盘结构等关键技术，改变黏土黏性并粉碎泥饼，从而减少泥岩附着刀盘，有 效解决盾构刀具磨损大、质量隐患多、掘进效率低等难题。 本文为转载内容，授权事宜请联系原著作权人 昌九高铁连接江西省南昌市和九江市，正线全长137.7公里，是国家《中长期铁路网规划》"八纵八 横"高铁主通道京港高铁的重要组成部分。昌九高铁建成通车后，京港大通道将全部贯通，将进一 ...

新华社贵阳11月28日电（记者欧东衢、向定杰）28日，在被称为"地质博物馆"的喀斯特艰险山区，一列 高铁成功穿越溶洞、峡谷与断层。随着贵州盘州至兴义这条约99公里的高速铁路开通运营，贵州实现各 市州中心城市高铁全覆盖。 ...

Core Viewpoint - The opening of the Panxiong High-Speed Railway marks Guizhou as the first province in Southwest China to achieve full high-speed rail coverage for its city (prefecture) center cities, significantly enhancing regional economic development and tourism resource utilization [1][3]. Group 1: Project Overview - The Panxiong High-Speed Railway connects Panzhou Station in Liupanshui City to Xinyi South Station in Qianxinan Buyi and Miao Autonomous Prefecture, spanning a total length of 99 kilometers with a design speed of 250 kilometers per hour [3][5]. - The railway features three stations: Panzhou, Baotian, and Xinyi South, with Baotian and Xinyi South being newly constructed and Panzhou undergoing expansion [3]. Group 2: Construction and Safety Measures - The construction faced challenges due to complex geological conditions in the karst area, but was completed on schedule through the implementation of green development principles and rigorous safety and quality controls [3][5]. - Prior to opening, comprehensive testing and safety evaluations were conducted on various systems, ensuring compliance with high-speed rail operational standards [3][5]. Group 3: Operational Details - Initially, the railway will operate 7 pairs of trains daily, with travel times from Xinyi South Station to major cities such as Guiyang North and Chongqing West being 33 minutes and 4 hours 29 minutes, respectively [5]. - A flexible pricing mechanism will be implemented to cater to diverse passenger needs, with specific fare information available through the railway's official platform [5]. Group 4: Economic and Social Impact - The railway's operation is expected to facilitate easier access to tourism sites like Wanfenglin, thereby promoting the development of local tourism and contributing to high-quality regional economic growth [5].

Core Viewpoint - The successful completion of the Tianjin-Weifang high-speed railway's key control project, the Tianjin Gu Hai River Tunnel, lays a solid foundation for the timely operation of the entire railway line [1] Group 1: Project Overview - The Tianjin-Weifang high-speed railway connects to the Beijing-Tianjin intercity railway in the north and the Jiqing high-speed railway in the south [1] - The total length of the main line is 348.9 kilometers, with a designed speed of 350 kilometers per hour [1] Group 2: Tunnel Specifics - The Tianjin Gu Hai River Tunnel's shield section is approximately 6.5 kilometers long, making it the only tunnel along the Tianjin-Weifang high-speed railway [1] - It is also noted as the first high-speed railway tunnel over the Hai River [1]

贵州省交通运输厅副厅长黄强说，盘兴高铁全长约99公里，穿越了被称为"地质博物馆"的复杂地貌，桥 隧比近91%。一线建设者攻克岩溶发育、高瓦斯、断层破碎带等施工难题，建成了妥乐隧道、保田隧 道、海子河1号转体桥等一批控制性工程，实现了安全、质量、环保、进度的统一。 新华社贵阳11月25日电 经过近4年奋战攻坚，贵州盘州至兴义高速铁路将于11月28日正式建成通车，标 志着贵州将实现省内各市州中心城市高铁全覆盖。 "盘兴高铁的通车，不是终点，而是贵州迈向更高水平开放、更高质量发展的新起点。"黄强表示，今天 的贵州东接长三角、北连京津冀、南融大湾区、西通东南亚，西南陆路交通枢纽的地位和优势进一步彰 显。（记者向定杰） 记者25日从贵州省人民政府新闻办召开的新闻发布会上获悉，贵州自2014年首条高铁开通运营后，加快 融入国家"八纵八横"高铁网络，成为西南地区重要陆路交通枢纽，预计今年内全省高铁里程将突破1900 公里。此次盘兴高铁的建成通车，将进一步完善区域交通格局。 ...

Core Points - The successful rotation of a nearly 10,000-ton "giant beam" for the Pingluozhou high-speed railway marks a significant milestone in the construction process, laying the groundwork for subsequent bridge installations and the overall completion of the line [1][2]. Group 1: Project Overview - The Pingluozhou high-speed railway is a crucial part of the national railway network, stretching nearly 200 kilometers from the western end at Pingdingshan West Station to the eastern end at Zhoukou East Station [2]. - The project features the first "no-edge span" design bridge in Henan Province, with a key segment measuring 161.5 meters in length and weighing approximately 9,925 tons, making it a landmark achievement in high-speed railway construction [2][3]. Group 2: Construction Techniques - To address the challenges of crossing operational high-speed rail lines, the construction team innovatively poured the main bridge structure along the side of the Zheng-Fu high-speed railway and utilized "window" work periods to rotate the bridge into position, ensuring simultaneous progress in both high-speed rail operation and construction [2][3]. - The design was optimized to eliminate conventional cast-in-place edge spans, reducing interference with the Zheng-Fu high-speed railway and saving over 180 days of construction time [3]. Group 3: Safety and Monitoring - Advanced construction methods, including the use of an overall support frame and Building Information Modeling (BIM) for simulation, were employed to identify potential risks and ensure safety [3]. - The site was equipped with 360-degree monitoring devices to track critical data such as rotation angle, speed, position, and minor deformations, allowing for precise adjustments during the bridge's rotation [3]. Group 4: Economic and Regional Impact - Upon completion, the Pingluozhou high-speed railway will serve as a convenient link connecting major north-south rail arteries, facilitating both long-distance transport and local commuter services, thereby enhancing regional economic development [3].

Core Viewpoint - The successful completion of the key bridge structure for the Pingluozhou High-Speed Railway marks a significant milestone in the project, facilitating further construction and the eventual operation of the railway [1]. Group 1: Project Overview - The Pingluozhou High-Speed Railway is an important part of the national railway network, stretching 199.679 kilometers from Pingdingshan West Station to Zhoukou East Station [1]. - The Shanzhou Bridge, a critical component of the project, is the first "no-edge" design turntable bridge in Henan Province, measuring 161.5 meters in length and weighing approximately 9,925 tons [1]. Group 2: Construction Techniques - To address the challenge of crossing over an operational high-speed railway, innovative construction methods were employed, including the in-situ rotation of the bridge during a scheduled maintenance window [1]. - The construction was managed by Zhengwan Railway Passenger Dedicated Line Co., Ltd., with the actual work carried out by China Railway Seventh Group [1]. Group 3: Future Developments - The railway department, in collaboration with the construction unit, will continue to advance the Pingluozhou High-Speed Railway project to ensure timely operation, enhancing travel convenience for passengers and supporting high-quality economic development in the surrounding areas [1].

盘兴高铁全长约99公里，设计时速250公里，自沪昆客专盘州站引出，经盘州市石桥镇、响水镇、保田 镇进入黔西南州兴义市。盘兴高铁共设车站3座，其中改建盘州站，新建保田站、兴义南站。 贵州盘州至兴义高速铁路将于11月28日建成通车 盘兴高铁穿越了被称为"地质博物馆"的复杂地貌，桥隧比近91%，创下贵州高铁建设之最。贵州以科技 破题、以匠心筑路，攻克了岩溶发育、断层破碎带等世界级施工难题，建成了妥乐隧道、海子河1号转 体桥等一批控制性工程，实现了安全、质量、环保、进度的统一，彰显了中国高铁建设的硬核实力。 中新网贵阳11月25日电 (记者 瞿宏伦)经过近4年的奋战攻坚，贵州盘州至兴义高速铁路(以下简称：盘兴 高铁)将于2025年11月28日正式建成通车，标志着贵州各市(州)行政中心所在地实现高铁通达。 贵州省交通运输厅副厅长黄强介绍，盘兴高铁建成通车，不仅打通了黔西南州在贵州高铁网络的"最后 一公里"，更标志着贵州成为西南地区首个实现市州中心城市高铁全覆盖的省份，构建起以贵阳为中心 的"1至2小时高铁交通圈"，进一步完善了贵州的交通格局。 记者25日从贵州省人民政府新闻办公室举行的新闻发布会获悉上述消息。 黄强表示 ...

Core Points - The Shennan High-speed Railway's Shuangbo Tunnel has successfully completed construction, marking a significant milestone in the project [1][3] - The total length of the Shuangbo Tunnel is 1,626.8 meters, with a maximum burial depth of approximately 150 meters, located in a complex geological area [1][3] - The Shennan High-speed Railway will connect Shenzhen and Nanning, covering a total distance of 661 kilometers with a design speed of 350 kilometers per hour [5][7] Construction Techniques - The project team utilized geological radar and advanced drilling technologies for real-time geological detection, completing 126 pre-forecasts and identifying 38 risk points [3] - Different construction methods were employed based on varying rock conditions, with specific techniques for soft and hard rock segments to ensure safety and efficiency [3] - Innovative construction measures, such as the arch bridge template assembly and precise vibration techniques, were implemented to control excavation quality and efficiency [3] Project Impact - Once completed, the travel time between Shenzhen and Nanning will be reduced from 3.5 hours to 2.5 hours, significantly enhancing the connectivity within the Guangdong-Hong Kong-Macao Greater Bay Area [5][7] - The project is expected to improve passenger transport quality and expand railway capacity in the Guangxi and Guangdong regions, benefiting local residents and promoting regional development [5][7]

Core Viewpoint - The Hangzhou-Qichun High-Speed Railway (杭衢高铁) has entered the trial operation phase, marking a significant step towards its full opening, which is expected by the end of December 2025. This railway is seen as a vital development for the Qichun region, enhancing connectivity and economic growth opportunities [3][5][6]. Summary by Sections Project Overview - The Hangzhou-Qichun High-Speed Railway spans approximately 131 kilometers with a design speed of 350 km/h, featuring six stations including JianDe, LongYou, and Jiangshan. The project commenced construction in May 2020 and is characterized by a bridge-tunnel ratio of 78.7% [5][6]. Economic Impact - The railway is anticipated to significantly reduce travel time between Hangzhou and Qichun from about 1 hour to approximately 40 minutes, and travel to Shanghai will decrease from over 2 hours to 90 minutes. This improvement is expected to mitigate Qichun's marginalization in the economic landscape of Zhejiang Province [5][6]. Strategic Importance - The Hangzhou-Qichun High-Speed Railway is positioned as a key channel for enhancing Zhejiang's connectivity with neighboring provinces such as Anhui, Jiangxi, and Fujian, facilitating the integration of the Yangtze River Delta with central regions [6]. Investment and Construction Model - This railway is notable for being the first in China to adopt a "PPP+EPC" model, with a total investment of approximately 23.63 billion yuan. The project is led by the China Railway Fourth Survey and Design Institute Group [6]. Operational Considerations - Experts suggest that the operational frequency of the railway should be optimized to enhance connectivity with other rail lines, such as the Hukun Railway and Jiujiang-Qichun Railway, to better serve a wider range of passengers. There is also a push for the railway to serve as a pilot for intercity rail operations [7].