Numerical study on tunnel damage subject to blast-induced shock wave in jointed rock masses

• Published in: Tunnelling and underground space technology Vol. 43; pp. 88 - 100
• Main Authors: Deng, X.F., Zhu, J.B., Chen, S.G., Zhao, Z.Y., Zhou, Y.X., Zhao, J.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.07.2014; Elsevier
• Subjects: Applied sciences; Bolting; Bolts; Building failures (cracks, physical changes, etc.); Buildings. Public works; Circularity; Damage; Disturbed zones; Durability. Pathology. Repairing. Maintenance; Exact sciences and technology; Geotechnics; Initial stress; Joints; Mathematical models; Peak particle velocities; Rock; Scaled distance; Shock waves; Soil mechanics. Rocks mechanics; Stresses. Safety; Structural analysis. Stresses; Tunnel damage; Tunnels (transportation); Tunnels, galleries; Tunnel damage; Initial stress; Scaled distance; Disturbed zones; Peak particle velocities; Bolts; Joints; Performance evaluation; Bolt; Impact study; Rock mass; Modeling; Velocity; Shock wave; Particle; Stress distribution; Failure analysis; Jointed rock; Numerical simulation; Distance; Tunnels

•Damage of rock tunnel subject to blast-induced shock wave is modeled with UDEC.•Effects of joint properties on tunnel damage are investigated.•Effects of initial stress and scaled distance on tunnel damage are determined.•Bolt supporting to tunnel stability is modeled.•Modeling results are compared...