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。 ...

渝万高铁光裕寨隧道顺利贯通 中新网重庆12月5日电 (张旭)记者从中铁十一局获悉，12月5日，由该局承建的渝万高铁全线第二长隧道 ——光裕寨隧道顺利贯通，项目建设取得关键进展。 图为渝万高铁光裕寨隧道进口。张旭 摄 光裕寨隧道位于重庆市万州区，全长8575米，最大埋深约350米，系渝万高铁全线重难点控制性工程之 一。隧道穿越区段地质条件极为复杂，广泛分布缓倾岩层、软弱围岩等不良地质体，施工难度极大。 同时，该隧道还面临下穿既有交通干线的严峻挑战。其中，进口端下穿达万铁路，出口端下穿G42沪蓉 高速，立交处隧道结构距路基面最小净距仅19米，施工管控要求极高。 面对复杂地质环境，中铁十一局项目团队采用"中部斜井+出口横洞"辅助坑道方案，实现长隧短打、高 效推进目标。 施工过程中，项目团队创新应用多项先进工艺攻克地质难题：进口下穿段采用控制爆破与非爆结合的两 台阶开挖法，出口下穿段实施非爆三台阶开挖，同步优化光面爆破工艺。此外，工作人员还通过全程跟 班作业、动态调整参数，显著降低围岩扰动，有力保障既有线路安全。 图为隧道贯通点。中铁十一局供图 中新经纬版权所有，未经书面授权，任何单位及个人不得转载、摘编或以其它方式 ...

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]

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。 ...