目前，高铁覆盖了我国97%的城区人口50万以上城市；承担了中国铁路80%的旅客发送量、69%的旅客 周转量，成为中长途旅客运输的主力；建成了全球访问量和交易规模最大的12306新一代票务系统，单 日售票能力超2000万张。 "十四五"以来，我国建成投产高铁1.2万公里，高铁营业里程较2020年底增长约32%，128个县迈入了高 铁时代，建成了世界上规模最大、现代化水平最高的高速铁路网。 记者从中国国家铁路集团有限公司获悉，26日，随着杭州至衢州高铁、沪渝蓉沿江高铁武汉至宜昌段、 西安至延安高铁先后开通运营，中国高铁营业里程突破5万公里，营业里程位居世界第1位，超过世界上 其他国家高铁营业里程的总和。 ...

国家"十四五"规划重点项目，我国"八纵八横"高铁网京兰通道的最后一段——包头至银川高速铁路今天全线开通运营。首发列车从内蒙古包头发车，并将于 中午12时45分，到达宁夏银川。 在包银高铁的起点包头，工业旋律与民俗图景交相辉映。旧工业厂房与现代生活在此交融，冬日里温暖的咖啡馆、创意市集点缀其间，让历史的温度在冰雪 季节里持续散发魅力。古渡口旁的黄河大集乡音盈耳，喧腾的烟火气与冰封的河道交织，在暖阳下铺陈出一幅热气腾腾的黄河年景图。 列车驶入巴彦淖尔，长河落日的雄浑塞外冬景图扑面而来。冬季那达慕赛场上，红驼与驭手完美配合踏起了优美的舞步，赛马凌空的四蹄如惊雷般叩响大 地。发动机的轰鸣声划破肃静千年的大漠戈壁，冬渡阴山的越野魅力让人流连忘返。在三盛公水利枢纽，"水煮黄河"奇观和浩荡北去的流凌更是不得不看的 冬日盛景。 巴彦淖尔、乌海正式开启高铁时代 包银高铁起自内蒙古包头，经巴彦淖尔、鄂尔多斯、乌海以及宁夏的石嘴山，终到银川站，设计时速250公里。沿线设包头、白彦花西等车站。 开通后，包头和银川之间的通行时间大幅压缩至3个小时以内，大大拉近了沿线城市的距离，为西北城市群的协同发展注入新动能。 包银高铁全线开通运营后 ...

新华社兰州12月10日电（记者樊曦）记者10日从中铁十八局集团了解到，历经1300余天艰苦奋战， 兰（州）至合（作）铁路全线重难点控制性工程——曲奥隧道顺利贯通，标志着工程建设取得重大突 破，为全线建成通车奠定坚实基础。 曲奥隧道位于甘肃省甘南州夏河县曲奥乡境内，全长10669米，为单洞双线隧道。隧道穿越高地应 力断层破碎带等不良地质区域，四、五级围岩占比超过七成，面临地表易变形坍塌、突泥涌水等施工难 题，为一级高风险隧道。据中铁十八局项目负责人高鸿毅介绍，施工中，建设团队积极运用BIM+GIS 技术搭建三维地质模型，精准掌握隧道变形情况，根据现场实际情况及时调整支护参数，确保施工稳步 推进。 兰合铁路是国家"八纵八横"高速铁路网的重要组成部分，新建正线全长147.42公里，设计时速200 公里。项目建成通车后，将与西宁至成都铁路联通，进一步完善区域铁路网布局，结束甘肃省临夏回族 自治州和甘南藏族自治州不通铁路的历史，对促进沿线地区经济社会高质量发展、巩固脱贫攻坚成果具 有重要意义。 【纠错】 【责任编辑:焦鹏】 ...

Core Viewpoint - The successful completion of the Hujia Yuan Tunnel marks a significant milestone in the construction of the Xitian High-speed Railway, indicating that all 42 tunnels along the line have been completed, thus accelerating the overall construction progress [1][3]. Group 1: Project Overview - The Xitian High-speed Railway has a total length of 255.7 kilometers, with the Shaanxi section measuring 169.4 kilometers and the Hubei section measuring 86.3 kilometers [3]. - The Hubei section includes 26.5 tunnels, with the Hujia Yuan Tunnel being the last to be completed [5]. Group 2: Construction Challenges - The project faces significant challenges due to poor surrounding rock conditions, shallow burial, and high construction risks, which require strict adherence to safety and quality standards [3][7]. - The construction team has implemented advanced support measures and utilized GIS visualization platforms to enhance process control and ensure safety during the construction [7]. Group 3: Economic and Connectivity Impact - The Xitian High-speed Railway is a crucial part of the national high-speed rail network, designed for a speed of 350 kilometers per hour, which will enhance connectivity between the Guanzhong urban agglomeration and the Yangtze River middle reaches [7]. - The railway is expected to open in June 2026, reducing travel time significantly between major cities, such as Wuhan to Xi'an in under 3 hours [10].

Core Points - The construction of the Xiongshan High-Speed Railway (雄商高铁) in Hebei has reached a significant milestone with the completion of the box girder installation for the Zaoqing Grand Bridge, marking the end of the beam-laying work for the Hebei section of the railway [2][4][6][8][10][12][14] - The Xiongshan High-Speed Railway is a crucial part of China's high-speed rail network, specifically the Beijing-Hong Kong (Taiwan) corridor, with a total length of 552 kilometers and a designed speed of 350 kilometers per hour [2][4][6][8][10][12][14] Company and Industry Insights - China Railway Twenty Bureau Group, among other units, is responsible for the construction of the Xiongshan High-Speed Railway, highlighting the involvement of major construction firms in significant infrastructure projects [2][4][6][8][10][12][14] - The completion of the beam-laying work is expected to enhance the connectivity and efficiency of the high-speed rail network in China, which is part of the broader strategy to improve transportation infrastructure [2][4][6][8][10][12][14]