Open access
Oct 2026
Mechanical response of large-span variable-cross-section tunnels: insights from numerical simulation and field monitoring
Surrounding rock deformation and loosening zone thickness are critical parameters for tunnel support design and stability evaluation. This study examined the variable-cross-section Qingshan Tunnel on the Ren-Zun Expressway. Systematic field monitoring measured surrounding rock pressure, displacement, and loosening zone...
Nai-Tao Zheng, You-Yun Li, Zhi-Feng Wang et al.
· Frontiers in Earth Science · 0 citations