大西隧道位于兰州市大同镇境内，紧邻金龙沟特大桥和大西沟1号大桥，隧道全长373.2米，进出口坡面植被稀疏，黄土陷穴发育，工程地质条件较差。建设者采用了隧道浅埋地段开挖CRD工法，确保隧道施工按期完工。
据悉，新建兰州至张掖三四线铁路，全线长约518公里，设计时速250公里，由兰州市兰州西站引出，经过武威市、金昌市，最终引入张掖市张掖西站。中间设中川机场站、史喇口、永登西、天祝西、黑松驿、古浪北、武威东，贯通古丝绸之路的黄金地段河西走廊。这条铁路将成为兰州至新疆方向第二条高铁通道，建成后将完善甘肃省西部地区高速铁路网布局、促进甘肃省河西走廊快速客运通道的形成。
World's First! After 4 Years of R&D, This 'Package' Solution Completes Large Shield Tunneling Under an Operational High-Speed Railway
下一篇Only Four Tunnels Remain! China-Laos Railway's Baluo No. 2 Tunnel Fully Bored Through
2026-09-28 1157 0
2026-09-24 10586 0
2026-09-23 10714 0
2026-09-22 10808 0
Lize City Air Terminal Underground Main Structure Nearing Completion: Maximum Transfer Walk Under 4 Minutes After Operation
Anti-seepage Curtain for Main Lock Pit of CSCEC Port Shenqiu Double-Line Lock Project Completed on Schedule
All Pile Foundations Completed on Quanzhou Baiqi Channel
Hainan Upgrades Housing and Municipal Infrastructure
First Foundation Concrete Pour Successfully Completed for Zambia Kafue West–Muzuma 330kV Transmission Line EPC Project
Hot News
评论 （0）