An improved numerical simulation approach for arch-bolt supported tunnels with large deformation
Tunnelling and Underground Space Technology(2018)
Abstract
•Focusing on supporting structures rather than surrounding rocks, an improved numerical simulation approach is proposed.•Both the supporting arch bearing behavior and the separable arch-rock interaction is realized.•The breakable anchor bolt model is established to simulate the stretching broken behavior of anchor bolt/cable.
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Key words
Tunnel support,Numerical simulation,Arch support,Anchor bolt broken,Separable arch-rock interaction,FLAC3D
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