人造
发表于 2025-3-28 17:36:09
Introduction,el and underground engineering construction has achieved unprecedented development, and it has become the country with the largest scale and the greatest difficulty in tunnel construction in the world.
浮雕
发表于 2025-3-28 19:02:07
Tunnel Route Selection in Karst Region,e topography, geomorphology, engineering and hydrogeological conditions, with construction and operation needs in consideration, and then adopts reasonable engineering technical plans and measures, and thus ensures the safety of tunnel construction and operation.