Unified Analytical Solutions of Circular Tunnel Excavated in an Elastic-Brittle-Plastic Rock Mass considering Blast-Induced Damage and Dead Weight Loading

• Published in: Advances in Civil Engineering Vol. 2021; no. 1
• Main Authors: Cao, Yue, Chen, Liang, Xu, Jinhai, Li, Chong, Zhang, Wei
• Format: Journal Article
• Language: English
• Published: New York Hindawi 2021; John Wiley & Sons, Inc; Hindawi Limited; Wiley
• Subjects: Blasting; Brittleness; Casualties; Civil engineering; Convergence; Damage; Deformation; Drilling & boring machinery; Elastic deformation; Equilibrium; Equilibrium equations; Exact solutions; Excavation; Explosions; Gravity effects; Ground motion; High pressure; Optimization; Overloading; Rock masses; Rocks; Shear strength; Shear stress; Stability analysis; Support systems; Tunnels; Weight

Stress and deformation around circular tunnel are crucial for optimizing the support system and evaluating the tunnel stability. The damage zone induced by blasting or mechanical excavation can dramatically influence the support design and methods because the self-weight of broken rock mass at the r...