集大原高铁全线首隧贯通

The First Tunnel on Jining-Datong-Yuanping High-Speed Railway is Completed

By Chen Hong and Chen Chunyan

大同讯（陈红 陈春燕）5月2日，中铁十二局承建的集（宁）大（同）原（平）高铁北榆隧道贯通，成为全线首座贯通的隧道，为按期建成通车奠定坚实基础。

Datong—On May 2, China Railway 12th Bureau Group Co., Ltd completed Beiyu tunnel which became the first completed one on Jining-Datong-Yuanping high-speed railway, underpinning that the railway will be opened to traffic on schedule.

集大原高铁全长270.8公里，设计时速250公里，是国家中长期铁路网规划“八纵八横”之呼南高速铁路通道的重要组成部分。北榆隧道位于山西省大同市新荣区，设计为单洞双线隧道，全长825米，洞身范围均为浅埋段，最小埋深仅2.3米，出口毗邻京包铁路既有线，隧道地质结构复杂，施工难度较大。自2022年7月进洞施工以来，项目团队克服隧道基底变形、穿越防空洞控制区边界等施工难题，大力开展隧道机械化创新实践，采用自行式仰拱液压栈桥、智能化系统衬砌台车、遥控机械手湿喷机等隧道成套化机械装备，提升了施工进度，保障了隧道建设质量。

With a total length of 270.8 km and a designed speed of 250 km per hour, Jining-Datong-Yuanping high-speed railway is an important part of Hohhot-Nanning high-speed railway passage in “Eight Vertical and Eight Horizontal” high-speed railway network in the national medium- and long-term railway network plan. Located in Xinrong District, Datong City, Shanxi Province, the Beiyu tunnel is designed as an 825 meters long tunnel with single-hole and double-line. The tunnel body is shallowly buried, whose minimum depth is only 2.3 meters. The tunnel exit is adjacent to the existing railway lines of Beijing-Baotou railway. The tunnel has a complex geological structure and high construction difficulty. Since the tunnel construction in July 2022, the project team has overcome construction difficulties such as the deformation of the tunnel base, crossing the border of the air-raid shelter control area, and so on, vigorously carried out tunnel mechanization innovation practice, and adopted self-propelled invert hydraulic trestle, intelligent system lining trolley, remote manipulator wet spray machine and other integrated tunnels mechanical equipment, which has improved the construction progress and ensured the tunnel construction quality.

北榆隧道的按期贯通有力推动了集大原高铁建设进程。集大原高铁建成通车后，将进一步完善国家“八纵八横”高速铁路网，对于华北地区的经济发展具有重要意义。

The completion of Beiyu Tunnel on schedule has greatly promoted the construction of Jining-Datong-Yuanping high-speed railway after which is completed and opened to traffic, the national “Eight Vertical and Eight Horizontal” high-speed railway network will be further improved, which is of great significance for the economic development of North China.

来源：http://www.cr12g.com.cn/art/2023/5/4/art_4954_4345613.htm 

发表时间：2023-05-04

检索：翟雅婷       

翻译：肖明昊      

一审：徐小焱      

二审：彭莉        

三审：罗玲娟      

上传发布：姜浩